TECHNICAL SPECIFICATIONS 90% SUBMITTALdnhiggins.com/docs/CKWTF 90P Tech SPEC.pdf · Public...

TECHNICAL SPECIFICATIONS 90% SUBMITTAL

Public TransportationFacility

City of Key West, Florida

March 2014

Public Transportation Facility Table of Contents City of Key West, Florida TOC - 1

CITY OF KEY WEST PUBLIC TRANSPORTATION FACILITY

CITY OF KEY WEST, FLORIDA MARCH 2014

TECHNICAL SPECIFICATIONS DIVISION 2 SITEWORK 02832 SEGMENTAL RETAINING WALL SYSTEMS DIVISION 4 MASONRY 04200 UNIT MASONRY DIVISION 5 METALS 05210 STEEL JOISTS 05410 PRE-ENGINEERED COLD-FORMED STEEL ROOF TRUSSES 05500 MISCELLANEOUS METAL DIVISION 7 THERMAL AND MOISTURE PROTECTION 07412 STANDING-SEAM METAL ROOF PANELS 07520 STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS

MEMBRANE ROOFING DIVISION 11 EQUIPMENT 11302 GRINDER PUMP STATION DIVISION 15 MECHANICAL 15600 FUEL SYSTEM 15950 HVAC CONTROL SEQUENCES 15990 TESTING, ADJUSTING AND BALANCING DIVISION 16 ELECTRICAL 16015 POWER SYSTEM STUDY 16216 DIESEL ENGINE DRIVEN GENERATOR 16720 FIRE ALARM SYSTEM

END OF TABLE OF CONTENTS

© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014

SECTION 02832

SEGMENTAL RETAINING WALL SYSTEMS PART 1 GENERAL 1.01 DESCRIPTION

A. Work includes furnishing and installing segmental retaining wall (SRW) units to the lines and grades designated on the construction drawings or as directed by the Architect/Engineer. Also included is furnishing and installing appurtenant materials required for construction of the retaining wall including, but not limited to: leveling pad, soil reinforcement, unit drainage fill, reinforced backfill and incidental materials required and as shown on the construction drawings.

1.02 REFERENCE STANDARDS

A. Segmental Retaining Wall Units 1. ASTM C 140 Standard Specification of Sampling and Testing Concrete Masonry Units. 2. ASTM C 1372 Standard Specification for Segmental Retaining Wall Units. 3. NCMA SRWU-1 Test Method for Determining Connection Strength of SRW. 4. NCMA SRWU-2 Test Method for Determining Shear Strength of SRW.

B. Geosynthetic Reinforcement

1. ASTM D 4595 Tensile Properties of Geotextiles by the Wide-Width Strip Method. 2. ASTM D 5262Test Method for Evaluating the Unconfined Creep Behavior of

Geosynthetics. 3. ASTM D 5321 – Standard Test Method For Determining the Coefficient of Soil and

Geosynthetic or Geosynthetic and Geosynthetic by Direct Shear Method. 4. ASTM D 5818 - Standard Practice for Exposure and Retrieval of Samples to Evaluate

Installation Damage of Geosynthetics. 5. ASTM D 6706 – Standard Test Method for Measuring Geosynthetic Pullout Resistance

in Soil. 6. GRI:GG1 Single Rib Geogrid Tensile Strength. 7. GCR:GG4 Determination of Long Term Design Strength of Geogrids. 8. GRI:GG5 Determination of Geogrid (soil) Pullout.

C. Soils

1. ASTM D 422 Standard Test Method for Particle Size Analysis of Soils. 2. ASTM D 698 Standard Test Methods for Laboratory Compaction Characteristics of

Soil Using Standard Effort. 3. ASTM D 2487 – Standard Practice for Classification of Soils for Engineering Purposes. 4. ASTM D 4318 Standard Test methods for Liquid Limit, Plastic Limit, and Plasticity

Index of Soils. 5. ASTM G 51 – Standard Test Method for Measuring pH of Soil for Use in Corrosion

Testing.

Public Transportation Facility Segmental Retaining Wall Systems City of Key West, Florida 02832 - 1


D. Drainage Pipe

1. ASTM 3034 Standard Specification for Type PSM Polyvinyl Chloride (PVC) Sewer Pipe and Fittings.

2. ASTM D1248 Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable.

3. ASTM F 758– Standard Specification for Smooth-Wall Polyvinyl Chloride (PVC) Plastic Underdrain Systems for Highway, Airport or Similar Drainage.

4. ASTM F 405 – Standard Specification for Corrugated Polyethylene (PE) Pipe and Fittings.

E. Engineering Design

1. 1. “NCMA Design Manual for Segmental Retaining Walls,” Third Edition

F. Where specifications and reference documents conflict, the Architect/Engineer shall make the

final determination of applicable document. 1.03 SUBMITTALS

A. Material Submittals: The Contractor shall submit manufacturers' certifications two weeks prior to start of work stating that the SRW units and geosynthetic reinforcement meet the requirements of Section 2 of this specification.

B. Material Color Selection: Before ordering any material, the Contractor shall submit to the

owner, two high quality color copies of the manufacturer’s product literature indicating specifically which SRW units and soil reinforcing are proposed for use on the project. The owner will use the literature for preliminary selection of color, face style and texture. After preliminary selection, the Contractor will provide the Owner three physical samples of the SRW blocks in the selected color, style and texture for final approval.

C. Design Submittal: The Contractor shall submit two sets of detailed design calculations and

five (5) sets of construction drawings for approval at least two weeks prior to the beginning of wall construction. All calculations and drawings shall be prepared and sealed by a professional Civil Engineer (Wall Design Engineer) experienced in SRW wall design and licensed in the state of Florida.

1.04 DELIVERY, STORAGE AND HANDLING

A. Contractor shall check materials upon delivery to assure that specified type and grade of materials have been received and proper color and texture of SRW units have been received.

B. Contractor shall prevent excessive mud, wet concrete, epoxies, and like materials which may

affix themselves, from coming in contact with materials.

C. Contractor shall store and handle materials in accordance with manufacturer's recommendations.

D. Contractor shall protect materials from damage. Damaged materials shall not be incorporated

into the retaining wall.



E. Geosynthetic shall be protected from UV exposure and the protective covering on

geosynthetic shall remain until immediately before. PART 2 MATERIALS 2.01 SEGMENTAL RETAINING WALL UNITS

A. SRW units shall be machine formed, Portland Cement concrete blocks specifically designed for retaining wall applications. SRW units currently approved for this project are: Key-Stone Retaining Wall Systems, Versa-Lok Retaining Wall Sytems, Anchor Wall Systems, and Allen Block.

B. Finish of SRW units shall be split-face.

C. SRW unit faces shall be of straight geometry.

D. SRW unit height shall be 6 inches.

E. SRW units shall provide a minimum weight of 120 psf wall face area.

F. SRW units shall be solid through the full depth of the unit.

G. SRW units shall have a depth (front face to rear) to height ratio of 2:1, minimum.

H. SRW units shall be capable of being erected with the horizontal gap between adjacent units not exceeding 1/8 inch.

I. SRW units shall be interlocked with connecting pins that provide ¾-inch setback from unit below (yielding a 7-degree cant from vertical).

J. SRW units shall be sound and free of cracks or other defects that would interfere with the proper placing of the unit or significantly impair the strength or permanence of the structure. Any cracks or chips observed during construction shall fall within the guidelines outlined in ASTM C 1372.

K. Concrete SRW units shall conform to the requirements of ASTM 1372 and have a minimum net average 28 days compressive strength of 3000 psi. Compressive strength test specimens shall conform to the saw-cut coupon provisions of ASTM C140.

L. SRW units’ molded dimensions shall not differ more than + 1/8 inch from that specified, as measured in accordance with ASTM C 140. This tolerance does not apply to architectural surfaces, such as split faces.

2.02 SEGMENTAL RETAINING WALL CONNECTION PINS

A. SRW units shall be mechanically interlocked with connection pins, shear keyway, or by another approved locking mechanism. The pins shall consist of glass-reinforced nylon or fiberglass made for the expressed use with the SRW units supplied.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 2.03 GEOSYNTHETIC REINFORCEMENT

A. Geosynthetic reinforcement shall consist of geogrids or geotextiles manufactured as a soil reinforcement element. The manufacturers/suppliers of the geosynthetic reinforcement shall have demonstrated construction of similar size and types of segmental retaining walls on previous projects. Geosynthetic types should be by Tensar Inc. or equal

B. The type, strength, and placement location of the reinforcing geosynthetic shall be as

determined by the Wall Design Engineer, as shown on their final, sealed construction plans. Geogrid shall have a minimum long term design strength of 1,350 lb/sf.

2.04 LEVELING PAD

A. Material for leveling pad shall consist of compacted sand, gravel, or combination thereof

(USCS soil types GP,GW, SP, & SW) and shall be a minimum of 6 inches in depth. Lean concrete with a strength of 200-300 psi and 3 inches thick maximum may also be used as a leveling pad material. The leveling pad should extend laterally at least a distance of 6 inches from the toe and heel of the lowermost SRW unit.

2.05 REINFORCED (INFILL) SOIL

A. The reinforced soil material shall be select common fill or structural fill. PART 3 DESIGN PARAMETERS 3.01 SOIL

A. Soil lateral pressures for the wall design shall be based on an equivalent fluid unit weight of 60 pcf for soils above 100 year flood elevation and 90 pcf for soils below 100 year flood elevation. Additionally, a lateral pressure equal to 0.5 times the HS20 traffic surface surcharge shall be applied over the full height of all walls.

B. Should the actual soil conditions observed during construction differ from those assumed for

the design, design shall be reviewed by the Wall Design Engineer at the Engineer's direction. 3.02 DESIGN

A. The design provided by the Contractor and prepared by the Wall Design Engineer shall consider the internal and local stability of the reinforced soil mass and shall be in accordance with acceptable engineering practice and these specifications.

B. For constructability considerations, maximum vertical spacing between geogrid layers shall be

2.0 feet. PART 4 CONSTRUCTION 4.01 EXCAVATION

A. Contractor shall excavate to the lines and grades shown on the project grading plans. Contractor shall take precautions to minimize over-excavation. Over-excavation shall be



filled with compacted infill material, or as directed by the Engineer, at the Contractor's expense.

B. Contractor shall verify location of existing structures and utilities prior to excavation.

Contractor shall ensure all surrounding structures are protected from the effects of wall excavation. Excavation support, if required, is the responsibility of the Contractor

4.02 FOUNDATION PREPARATION

A. Following the excavation, the foundation soil shall be examined by the Engineer to assure actual foundation soil strength meets or exceeds the assumed design bearing strength. Soils not meeting the required strength shall be removed and replaced with infill soils, as directed by the Engineer.

B. Foundation soil shall be proofrolled and compacted to 95% standard Proctor density and

inspected by the Engineer prior to placement of leveling pad materials. 4.03 LEVELING PAD CONSTRUCTION

A. Base Leveling pad shall be constructed of dense graded crushed stone or crushed gravel. A concrete leveling pad consisting of lean unreinforced concrete may be used at the wall contractor’s option.

4.04 SRW UNIT INSTALLATION

A. All SRW units shall be installed at the proper elevation and orientation as shown on the wall profiles and details on the construction plans or as directed by the Engineer. The SRW units shall be installed in general accordance with the manufacturer's recommendations. The specifications and drawings shall govern in any conflict between the two requirements.

B. First course of SRW units shall be placed on the leveling pad. The units shall be leveled side-

to-side, front-to-rear and with adjacent units, and aligned to ensure intimate contact with the leveling pad. The first course is the most important to ensure accurate and acceptable results. No gaps shall be left between the front of adjacent units. Alignment may be done by means of a string line or offset from base line to the back of the units.

C. Clean all excess debris from top of units and install next course.

D. Insert two connection pins through pin holes of each upper course unit into receiving slots in

lower course units. Pins shall be fully seated in the pin slot below. Push units forward to remove any looseness in the unit-to-unit connection and then check alignment. Check level and alignment of the units.

E. Lay out of curves and corners shall be installed in accordance with the plan details or in

general accordance with SRW manufacturer's installation guidelines. Walls meeting at corners shall be interlocked by overlapping successive courses.

F. Repeat procedures to extent of wall height.

G. The wall face cant shall not differ more than + 2 degrees from that specified.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 4.05 GEOSYNTHETIC REINFORCEMENT PLACEMENT

A. All geosynthetic reinforcement shall be installed at the proper elevation and orientation as shown on the wall profiles and details on the final construction plans or as directed by the Engineer.

B. At the elevations shown on the final plans, the geosynthetic reinforcement shall be laid

horizontally on compacted infill and on top of the concrete SRW units. Embedment of the geosynthetic in the SRW units shall be consistent with SRW manufacturer's recommendations. Correct orientation of the geosynthetic reinforcement shall be verified by the Contractor to be in accordance with the geosynthetic manufacturer's recommendations. The highest strength direction of the geosynthetic must be perpendicular to the wall face.

C. Geosynthetic reinforcement layers shall be one continuous piece for their entire embedment

length. Overlap of the geosynthetic in the design strength direction (perpendicular to the wall face) shall not be permitted.

D. Tracked construction equipment shall not be operated directly on the geosynthetic

reinforcement. A minimum of 6 inches of backfill is required prior to operation of tracked vehicles over the geosynthetic. Turning should be kept to a minimum. Rubber-tired equipment may pass over the geosynthetic reinforcement at slow speeds (less than 5 mph).

E. The geosynthetic reinforcement shall be in tension and free of wrinkles prior to placement of

soil fill. The nominal tension shall be applied to the reinforcement and secured in place with staples, stakes or by hand tensioning until reinforcement is covered by six inches of fill.

4.06 BACKFILL PLACEMENT

A. The reinforced backfill shall be placed as shown in the construction plans in the maximum compacted lift thickness of 6 inches and shall be compacted to a minimum of 95% of Standard Proctor density (ASTM D 698) at a moisture content within 2% of optimum. The backfill shall be placed and spread in such a manner as to eliminate wrinkles or movement of the geosynthetic reinforcement and the SRW units.

B. Only hand-operated compaction equipment shall be allowed within 3 feet of the front of the

wall face. Compaction within the 3 feet behind the wall face shall be achieved by at least three (3) passes of a lightweight mechanical tamper, plate, or roller.

C. At the end of each day's operation, the Contractor shall slope the last level of backfill away

from the wall facing to direct water runoff away from the wall face. 4.07 SRW CAPS

A. SRW caps shall be properly aligned and glued to underlying units with concrete adhesive or an equivalent, flexible, high-strength concrete adhesive. Rigid adhesive or mortar are not acceptable.

END OF SECTION



Public Transportation Facility Unit Masonry City of Key West, Florida 04200 - 1

SECTION 04200 UNIT MASONRY

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and install unit masonry complete as shown on the Drawings and as specified herein.

B. Sections includes, but is not limited to the following:

1. Concrete masonry units (CMUs).

2. Mortar and grout.

3. Masonry joint reinforcement.

4. Ties and anchors.

5. Embedded flashing.

6. Miscellaneous masonry accessories.

7. Masonry-cell insulation.

1.02 SUBMITTALS

A. Submit detailed information on materials proposed and installation methods.

B. Product Data: For each type of product indicated.

C. LEED Submittal:

1. Product Certificates for Credit MR 5: For products and materials required to comply with requirements for regional materials indicating location and distance from Project of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include statement indicating cost for each regional material and the fraction by weight that is considered regional.

D. Shop Drawings: For the following:

1. Masonry Units: Show sizes, profiles, coursing, and locations of special shapes.

2. Fabricated Flashing: Detail corner units, end-dam units, and other special applications.

E. Qualification Data: For testing agency.

F. Material Certificates: Include statements of material properties indicating compliance with requirements including compliance with standards and type designations within standards. Provide for each type and size of the following:



1. Masonry units. a. Include material test reports substantiating compliance with requirements. b. For masonry units used in structural masonry, include data and calculations

establishing average net-area compressive strength of units.

2. Preblended, dry mortar mixes. Include description of type and proportions of ingredients.

3. Grout mixes. Include description of type and proportions of ingredients.

4. Joint reinforcement.

5. Anchors, ties, and metal accessories.

G. Mix Designs: For each type of mortar and grout. Include description of type and proportions of ingredients.

1. Include test reports, per ASTM C 780, for mortar mixes required to comply with property specification.

2. Include test reports, per ASTM C 1019, for grout mixes required to comply with compressive strength requirement.

H. Statement of Compressive Strength of Masonry: For each combination of masonry unit type and mortar type, provide statement of average net-area compressive strength of masonry units, mortar type, and resulting net-area compressive strength of masonry determined according to Tables 1 and 2 in ACI 530.1/ASCE 6/TMS 602.

I. Hot-Weather Procedures: Detailed description of methods, materials, and equipment to be used to comply with cold-weather requirements.

1.03 REFERENCES

A. American Concrete Institute/American Concrete Institute

1. ACI 315 - Details and Detailing of Concrete Reinforcement

B. American Concrete Institute/American Concrete Institute; American Society of Civil Engineers; and The Masonry Society

1. ACI 530.1/ASCE 6/TMS 602 - Specification for Masonry Structures

C. ASTM International

1. ASTM A 153/A 153M - Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

2. ASTM A 276 - Specification for Stainless Steel Bars and Shapes

3. ASTM A 307 - Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength



4. ASTM A 325 - Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

5. ASTM A 563 - Specification for Carbon and Alloy Steel Nuts

6. ASTM A 615/A 615M - Specification for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement

7. ASTM A 641/A 641M - Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

8. ASTM A 653/A 653M - Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

9. ASTM A 666 - Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar

10. ASTM A 951/A 951M - Specification for Masonry Joint Reinforcement

11. ASTM B 32 - Specification for Solder Metal

12. ASTM C 90 - Specification for Loadbearing Concrete Masonry Units

13. ASTM C 140 - Test Methods for Sampling and Testing Concrete Masonry Units and Related Units

14. ASTM C 143/C 143M - Test Method for Slump of Hydraulic Cement Concrete

15. ASTM C 144 - Specification for Aggregate for Masonry Mortar

16. ASTM C 150 - Specification for Portland Cement

17. ASTM C 199 - Test Method for Pier Test for Refractory Mortars

18. ASTM C 207 - Specification for Hydrated Lime for Masonry Purposes

19. ASTM C 404 - Specification for Aggregates for Masonry Grout

20. ASTM C 476 - Specification for Grout for Masonry

21. ASTM C 578 - Specification for Rigid, Cellular Polystyrene Thermal Insulation

22. ASTM C 1019 - Test Method for Sampling and Testing Grout

23. ASTM C 1093 - Practice for Accreditation of Testing Agencies for Unit Masonry

24. ASTM C 1289 - Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board

25. ASTM C 1314 - Test Method for Compressive Strength of Masonry Prisms

26. ASTM C 1329 - Specification for Mortar Cement



27. ASTM C 1506 - Test Method for Water Retention of Hydraulic Cement-Based Mortars and Plasters

28. ASTM D 2000 - Classification System for Rubber Products in Automotive Applications

29. ASTM D 2287 - Specification for Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds

30. ASTM E 488 - Test Methods for Strength of Anchors in Concrete and Masonry Elements

31. ASTM E 514 - Test Method for Water Penetration and Leakage Through Masonry

32. ASTM E2129 - Standard Practice for Data Collection for Sustainable Assessment of Building Products

33. ASTM F 568M - Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners

34. ASTM F 593 - Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs

35. ASTM F 594 - Specification for Stainless Steel Nuts

36. ASTM F 738M - Specification for Stainless Steel Metric Bolts, Screws, and Studs

37. ASTM F 836M - Specification for Style 1 Stainless Steel Metric Nuts

38. ASTM F 1941 - Specification for Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/UNR))

D. National Concrete Masonry Association

1. NCMA TEK 8 - Removal of Stains from Concrete Masonry Walls

E. Sheet Metal and Air Conditioning Contractors' National Association

1. Architectural Sheet Metal Manual.

F. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

1.04 PERFORMANCE REQUIREMENTS

A. Provide structural unit masonry that develops indicated net-area compressive strengths (f'm) at 28 days.

B. Determine net-area compressive strength (f'm) of masonry from average net-area compressive strengths of masonry units and mortar types (unit-strength method) according to Tables 1 and 2 in ACI 530.1/ASCE 6/TMS 602.

1. For concrete masonry unit construction: f 'm = 1500 psi.



C. Determine net-area compressive strength (f'm) of masonry by testing masonry prisms according to ASTM C 1314.

1.05 QUALITY ASSURANCE

A. Testing Agency Qualifications: Qualified according to ASTM C 1093 for testing indicated.

B. Source Limitations for Masonry Units: Obtain exposed masonry units of a uniform texture and color, or a uniform blend within the ranges accepted for these characteristics, through one source from a single manufacturer for each product required.

C. Source Limitations for Mortar Materials: Obtain mortar ingredients of a uniform quality, including color for exposed masonry, from a single manufacturer for each cementitious component and from one source or producer for each aggregate.

D. Masonry Standard: Comply with ACI 530.1/ASCE 6/TMS 602 unless modified by requirements in the Contract Documents.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Store masonry units on elevated platforms in a dry location. If units are not stored in an enclosed location, cover tops and sides of stacks with waterproof sheeting, securely tied. If units become wet, do not install until they are dry.

B. Store aggregates where grading and other required characteristics can be maintained and contamination avoided.

C. Deliver preblended, dry mortar mix in moisture-resistant containers designed for lifting and emptying into dispensing silo. Store preblended, dry mortar mix in delivery containers on elevated platforms, under cover, and in a dry location or in a metal dispensing silo with weatherproof cover.

D. Store masonry accessories, including metal items, to prevent corrosion and accumulation of dirt and oil.

1.07 PROJECT CONDITIONS

A. Protection of Masonry: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. Cover partially completed masonry when construction is not in progress.

1. Extend cover a minimum of 24 inches down both sides of walls and hold cover securely in place.

B. Do not apply uniform floor or roof loads for at least 12 hours and concentrated loads for at least 3 days after building masonry walls or columns.

C. Stain Prevention: Prevent grout, mortar, and soil from staining the face of masonry to be left exposed or painted. Immediately remove grout, mortar, and soil that come in contact with such masonry.



1. Protect base of walls from rain-splashed mud and from mortar splatter by spreading coverings on ground and over wall surface.

2. Protect sills, ledges, and projections from mortar droppings.

3. Protect surfaces of window and door frames, as well as similar products with painted and integral finishes, from mortar droppings.

4. Turn scaffold boards near the wall on edge at the end of each day to prevent rain from splashing mortar and dirt onto completed masonry.

D. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in ACI 530.1/ASCE 6/TMS 602.

PART 2 PRODUCTS

2.01 MASONRY UNITS, GENERAL

A. Defective Units: Referenced masonry unit standards may allow a certain percentage of units to contain chips, cracks, or other defects exceeding limits stated in the standard. Do not use units where such defects will be exposed in the completed Work.

B. Fire-Resistance Ratings: Where indicated, provide units that comply with requirements for fire-resistance ratings indicated as determined by testing according to ASTM E 119, by equivalent masonry thickness, or by other means, as acceptable to authorities having jurisdiction.

2.02 CONCRETE MASONRY UNITS (CMUS)

A. Regional Materials: CMUs shall be manufactured within 500 miles of Project site from aggregates and cement that have been extracted, harvested, or recovered, as well as manufactured, within 500 miles of Project site.

B. Shapes: Provide shapes indicated and as follows:

1. Provide special shapes for lintels, corners, jambs, sashes, movement joints, headers, bonding, and other special conditions.

2. Provide square-edged units for outside corners, unless otherwise indicated.

C. CMU's: ASTM C 90.

1. Density Classification: Normal weight.

2. Size (Width): Manufactured to dimensions 3/8 inch less than nominal dimensions.

3. Exposed Faces: Provide color and texture matching the range represented by Engineer's sample.

2.03 CONCRETE AND MASONRY LINTELS

A. General: Provide either concrete or masonry lintels, at Contractor's option, complying with requirements below.



B. Precast or formed-in-place concrete lintels complying with requirements on the structural drawings and with reinforcing bars indicated.

C. Masonry Lintels: Prefabricated or built-in-place masonry lintels made from bond beam concrete masonry units with reinforcing bars placed as indicated and filled with coarse grout. Cure precast lintels before handling and installing. Temporarily support built-in-place lintels until cured.

2.04 MORTAR AND GROUT MATERIALS

A. Regional Materials: Provide aggregate for mortar and grout, cement, and lime that have been extracted, harvested, or recovered, as well as manufactured, within 500 miles of Project site.

B. Portland Cement: ASTM C 150, Type I or II.

C. Hydrated Lime: ASTM C 207, Type S.

D. Portland Cement-Lime Mix: Packaged blend of portland cement complying with ASTM C 150, Type I or Type III, and hydrated lime complying with ASTM C 207, Type S.

E. Aggregate for Mortar: ASTM C 144.

1. For mortar that is exposed to view, use washed aggregate consisting of natural sand or crushed stone.

2. For joints less than 1/4 inch thick, use aggregate graded with 100 percent passing the No. 16 sieve.

F. Aggregate for Grout: ASTM C 404.

G. Water: Potable.

2.05 REINFORCEMENT

A. Steel reinforcing bars are specified on the drawings.

B. Uncoated Steel Reinforcing Bars: ASTM A 615/A 615M, Grade 60.

1. Recycled Content: Minimum 10 percent post-consumer recycled content, or minimum 40 percent pre-consumer recycled content at contractor's option.

C. Masonry Joint Reinforcement, General: ASTM A 951/A 951M.

1. Interior Walls: Hot-dip galvanized, carbon steel.

2. Exterior Walls: Stainless Steel.

3. Wire Size for Side Rods: 0.187-inch diameter.

4. Wire Size for Cross Rods: 0.187-inch diameter.

5. Spacing of Cross Rods, Tabs, and Cross Ties: Not more than 16 inches o.c.



6. Provide in lengths of not less than 10 feet, with prefabricated corner and tee units.

D. Masonry Joint Reinforcement for Single-Wythe Masonry: Ladder type with single pair of side rods.

2.06 TIES AND ANCHORS

A. Materials: Provide ties and anchors specified in subsequent paragraphs that are made from materials that comply with eight subparagraphs below, unless otherwise indicated.

1. Mill-Galvanized, Carbon-Steel Wire: ASTM A 82; with ASTM A 641/A 641M, Class 1 coating.

2. Hot-Dip Galvanized, Carbon-Steel Wire: ASTM A 82; with ASTM A 153/A 153M, Class B-2 coating.

3. Stainless-Steel Wire: ASTM A 580/A 580M, Type 304.

4. Galvanized Steel Sheet: ASTM A 653/A 653M, Commercial Steel, G60 (Z180) zinc coating.

5. Steel Sheet, Galvanized after Fabrication: ASTM A 1008/A 1008M, Commercial Steel, with ASTM A 153/A 153M, Class B coating.

6. Stainless-Steel Sheet: ASTM A 666, Type 304.

7. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.

8. Stainless Steel bars: ASTM A 276 or ASTM A 666, Type 304.

B. Wire Ties, General: Unless otherwise indicated, size wire ties to extend at least halfway through veneer but with at least 5/8-inch cover on outside face. Outer ends of wires are bent 90 degrees and extend 2 inches parallel to face of veneer.

C. Adjustable Anchors for Connecting to Concrete: Provide anchors that allow vertical or horizontal adjustment but resist tension and compression forces perpendicular to plane of wall.

1. Tie Section: Triangular-shaped wire tie, sized to extend within 1 inch of masonry face, made from 0.25-inch-diameter, stainless-steel wire.

D. Partition Top anchors: 0.105-inch-thick metal plate with 3/8-inch-diameter metal rod 6 inches long welded to plate and with closed-end plastic tube fitted over rod that allows rod to move in and out of tube. Fabricate from steel, hot-dip galvanized after fabrication.

2.07 MISCELLANEOUS ANCHORS

A. Dovetail Slots in Concrete: Furnish dovetail slots with filler strips, of slot size indicated, fabricated from 0.034-inch, galvanized steel sheet.



2.08 MISCELLANEOUS MASONRY ACCESSORIES

A. Compressible Filler: Premolded filler strips complying with ASTM D 1056, Grade 2A1; compressible up to 35 percent; of width and thickness indicated; formulated from neoprene.

B. Preformed Control-Joint Gaskets: Made from styrene-butadiene-rubber compound, complying with ASTM D 2000, Designation M2AA-805 and designed to fit standard sash block and to maintain lateral stability in masonry wall; size and configuration as indicated.

C. Bond-Breaker Strips: Asphalt-saturated, organic roofing felt complying with ASTM D 226, Type I (No. 15 asphalt felt).

D. Reinforcing Bar Positioners: Wire units designed to fit into mortar bed joints spanning masonry unit cells with loops for holding reinforcing bars in center of cells. Units are formed from 0.142-inch steel wire, hot-dip galvanized after fabrication. Provide units with either two loops or four loops as needed for number of bars indicated.

1. Products: a. Dayton Superior Corporation, Dur-O-Wal Division; D/A 810, D/A 812 or D/A 817. b. Heckmann Building Products Inc.; No. 376 Rebar Positioner. c. Hohmann & Barnard, Inc.; #RB or #RB-Twin Rebar Positioner. d. Wire-Bond; O-Ring or Double O-Ring Rebar Positioner. e. Or equal.

2.09 MASONRY-CELL INSULATION

A. Molded-Polystyrene Insulation Units: Rigid, cellular thermal insulation formed by the expansion of polystyrene-resin beads or granules in a closed mold to comply with ASTM C 578, Type I. Provide specially shaped units designed for installing in cores of masonry units.

1. Products: a. Concrete Block Insulating Systems; Korfil. b. Shelter Enterprises Inc.; Omni Core. c. Or equal.

2.10 MORTAR AND GROUT MIXES

A. General: Do not use admixtures, including pigments, air-entraining agents, accelerators, retarders, water-repellent agents, antifreeze compounds, or other admixtures, unless otherwise indicated.

1. Do not use calcium chloride in mortar or grout.

2. Limit cementitious materials in mortar to portland cement and lime.

3. Add cold-weather admixture (if used) at same rate for all mortar that will be exposed to view, regardless of weather conditions, to ensure that mortar color is consistent.

B. Preblended, Dry Mortar Mix: Furnish dry mortar ingredients in form of a preblended mix. Measure quantities by weight to ensure accurate proportions, and thoroughly blend ingredients before delivering to Project site.



C. Mortar for Unit Masonry: Comply with ASTM C 270, Proportion Specification. Provide the following types of mortar for applications stated unless another type is indicated.

1. For reinforced masonry, use Type M.

2. For exterior, above-grade, load-bearing and non-load-bearing walls and parapet walls; for interior load-bearing walls; for interior non-load-bearing partitions; and for other applications where another type is not indicated, use Type N.

D. Grout for Unit Masonry: Comply with ASTM C 476.

1. Use grout of type indicated or, if not otherwise indicated, of type (fine or coarse) that will comply with Table 1.15.1 in ACI 530.1/ASCE 6/TMS 602 for dimensions of grout spaces and pour height.

2. Proportion grout in accordance with ASTM C 476, Table 1for specified 28-day compressive strength indicated, but not less than 2000 psi.

3. Provide grout with a slump of 10 to 11 inches as measured according to ASTM C 143/C 143M.

PART 3 EXECUTION

3.01 EXAMINATION

A. Examine conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of work.

1. For the record, prepare written report, endorsed by Installer, listing conditions detrimental to performance of work.

2. Verify that foundations are within tolerances specified.

3. Verify that reinforcing dowels are properly placed.

B. Before installation, examine rough-in and built-in construction for piping systems to verify actual locations of piping connections.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 INSTALLATION, GENERAL

A. Build chases and recesses to accommodate items specified in this and other Sections.

B. Leave openings for equipment to be installed before completing masonry. After installing equipment, complete masonry to match the construction immediately adjacent to opening.

C. Use full-size units without cutting if possible. If cutting is required to provide a continuous pattern or to fit adjoining construction, cut units with motor-driven saws; provide clean, sharp, unchipped edges. Allow units to dry before laying unless wetting of units is specified. Install cut units with cut surfaces and, where possible, cut edges concealed.



3.03 TOLERANCES

A. Dimensions and Locations of Elements:

1. For dimensions in cross section or elevation do not vary by more than plus 1/2 inch or minus 1/4 inch.

2. For location of elements in plan do not vary from that indicated by more than plus or minus 1/2 inch.

3. For location of elements in elevation do not vary from that indicated by more than plus or minus 1/4 inch in a story height or 1/2 inch total.

B. Lines and Levels:

1. For bed joints and top surfaces of bearing walls do not vary from level by more than 1/4 inch in 10 feet, or 1/2 inch maximum.

2. For conspicuous horizontal lines, such as lintels, sills, parapets, and reveals, do not vary from level by more than 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2 inch maximum.

3. For vertical lines and surfaces do not vary from plumb by more than 1/4 inch in 10 feet, 3/8 inch in 20 feet, or 1/2 inch maximum.

4. For conspicuous vertical lines, such as external corners, door jambs, reveals, and expansion and control joints, do not vary from plumb by more than 1/8 inch in 10 feet, 1/4 inch in 20 feet, or 1/2 inch maximum.

5. For lines and surfaces do not vary from straight by more than 1/4 inch in 10 feet, 3/8 inch in 20 feet, or 1/2 inch maximum.

6. For vertical alignment of exposed head joints, do not vary from plumb by more than 1/4 inch in 10 feet, or 1/2 inch maximum.

7. For faces of adjacent exposed masonry units, do not vary from flush alignment by more than 1/16 inch except due to warpage of masonry units within tolerances specified for warpage of units.

C. Joints:

1. For bed joints, do not vary from thickness indicated by more than plus or minus 1/8 inch with a maximum thickness limited to 1/2 inch .

2. For exposed bed joints, do not vary from bed-joint thickness of adjacent courses by more than 1/8 inch.

3. For head and collar joints, do not vary from thickness indicated by more than plus 3/8 inch or minus 1/4 inch.



4. For exposed head joints, do not vary from thickness indicated by more than plus or minus 1/8 inch. Do not vary from adjacent bed-joint and head-joint thicknesses by more than 1/8 inch.

5. For exposed bed joints and head joints of stacked bond, do not vary from a straight line by more than 1/16 inch from one masonry unit to the next.

3.04 LAYING MASONRY WALLS

A. Lay out walls in advance for accurate spacing of surface bond patterns with uniform joint thicknesses and for accurate location of openings, movement-type joints, returns, and offsets. Avoid using less-than-half-size units, particularly at corners, jambs, and, where possible, at other locations.

B. Lay concealed masonry with all units in a wythe in running bond or bonded by lapping not less than 4-inches. Bond and interlock each course of each wythe at corners. Do not use units with less than nominal 4-inchhorizontal face dimensions at corners or jambs.

C. Stopping and Resuming Work: Stop work by racking back units in each course from those in course below; do not tooth. When resuming work, clean masonry surfaces that are to receive mortar, remove loose masonry units and mortar before laying fresh masonry.

D. Built-in Work: As construction progresses, build in items specified in this and other Sections. Fill in solidly with masonry around built-in items.

E. Where built-in items are to be embedded in cores of hollow masonry units, place a layer of metal lath, wire mesh, or plastic mesh in the joint below and rod mortar or grout into core.

F. Fill cores in hollow concrete masonry units with grout 24 inches under bearing plates, beams, lintels, posts, and similar items, unless otherwise indicated.

G. Build non-load-bearing interior partitions full height of story to underside of solid floor or roof structure above, unless otherwise indicated.

1. Install compressible filler in joint between top of partition and underside of structure above.

2. Fasten partition top anchors to structure above and build into top of partition. Grout cells of CMUs solidly around plastic tubes of anchors and push tubes down into grout to provide 1/2-inch clearance between end of anchor rod and end of tube. Space anchors as shown on the drawings.

3.05 MORTAR BEDDING AND JOINTING

A. Lay hollow concrete masonry units as follows:

1. With face shells fully bedded in mortar and with head joints of depth equal to bed joints.

2. With webs fully bedded in mortar in all courses of piers, columns, and pilasters.



3. With webs fully bedded in mortar in grouted masonry, including starting course on footings.

4. With entire units, including areas under cells, fully bedded in mortar at starting course on footings where cells are not grouted.

B. Tool exposed joints slightly concave when thumbprint hard, using a jointer larger than joint thickness, unless otherwise indicated.

1. For glazed masonry units, use a nonmetallic jointer 3/4 inch or more in width.

C. Cut joints flush for masonry walls to receive plaster or other direct-applied finishes (other than paint), unless otherwise indicated.

3.06 MASONRY-CELL INSULATION

A. Install molded-polystyrene insulation units into masonry unit cells before laying units.

3.07 MASONRY JOINT REINFORCEMENT

A. General: Install entire length of longitudinal side rods in mortar with a minimum cover of 5/8 inch on exterior side of walls, 1/2 inch elsewhere. Lap reinforcement a minimum of 6 inches.

1. Space reinforcement not more than 16 inches o.c.

2. Space reinforcement not more than 8 inches o.c. in foundation walls and parapet walls.

3. Provide reinforcement not more than 8 inches above and below wall openings and extending 12 inches beyond openings in addition to continuous reinforcement.

B. Interrupt joint reinforcement at control and expansion joints, unless otherwise indicated.

C. Provide continuity at wall intersections by using prefabricated T-shaped units.

D. Provide continuity at corners by using prefabricated L-shaped units.

E. Cut and bend reinforcing units as directed by manufacturer for continuity at returns, offsets, pipe enclosures, and other special conditions.

3.08 ANCHORING MASONRY TO STRUCTURAL CONCRETE

A. Anchor masonry to concrete where masonry abuts or faces structural concrete to comply with the following:

1. Provide an open space not less than 1/2 inch wide between masonry and structural steel or concrete unless otherwise indicated. Keep open space free of mortar and other rigid materials.

2. Anchor masonry with anchors embedded in masonry joints and attached to structure.

3. Space anchors as indicated, but not more than 24 inches o.c. vertically and 36 inches o.c. horizontally.



3.09 CONTROL JOINTS

A. General: Install control joint materials in unit masonry as masonry progresses. Do not allow materials to span control joints without provision to allow for in-plane wall or partition movement.

B. Form control joints in concrete masonry as follows:

1. Fit bond-breaker strips into hollow contour in ends of concrete masonry units on one side of control joint. Fill resultant core with grout and rake out joints in exposed faces for application of sealant.

3.10 LINTELS

A. Provide concrete or masonry lintels at all openings.

B. Provide minimum bearing of 8 inches at each jamb, unless otherwise indicated.

3.11 REINFORCED UNIT MASONRY INSTALLATION

A. Temporary Formwork and Shores: Construct formwork and shores as needed to support reinforced masonry elements during construction.

1. Construct formwork to provide shape, line, and dimensions of completed masonry as indicated. Make forms sufficiently tight to prevent leakage of mortar and grout. Brace, tie, and support forms to maintain position and shape during construction and curing of reinforced masonry.

2. Do not remove forms and shores until reinforced masonry members have hardened sufficiently to carry their own weight and other temporary loads that may be placed on them during construction.

B. Placing Reinforcement: Comply with requirements in ACI 530.1/ASCE 6/TMS 602.

C. Grouting: Do not place grout until entire height of masonry to be grouted has attained enough strength to resist grout pressure.

1. Comply with requirements in ACI 530.1/ASCE 6/TMS 602 for cleanouts and for grout placement, including minimum grout space and maximum pour height.

2. Limit height of vertical grout pours to not more than 48 inches.

3.12 REPAIRING, POINTING, AND CLEANING

A. Remove and replace masonry units that are loose, chipped, broken, stained, or otherwise damaged or that do not match adjoining units. Install new units to match adjoining units; install in fresh mortar, pointed to eliminate evidence of replacement.

B. Pointing: During the tooling of joints, enlarge voids and holes, except weep holes, and completely fill with mortar. Point up joints, including corners, openings, and adjacent



construction, to provide a neat, uniform appearance. Prepare joints for sealant application, where indicated.

C. In-Progress Cleaning: Clean unit masonry as work progresses by dry brushing to remove mortar fins and smears before tooling joints.

D. Final Cleaning: After mortar is thoroughly set and cured, clean exposed masonry as follows:

1. Remove large mortar particles by hand with wooden paddles and nonmetallic scrape hoes or chisels.

2. Test cleaning methods on sample wall panel; leave one-half of panel uncleaned for comparison purposes. Obtain Engineer's approval of sample cleaning before proceeding with cleaning of masonry.

3. Protect adjacent stone and nonmasonry surfaces from contact with cleaner by covering them with liquid strippable masking agent or polyethylene film and waterproof masking tape.

4. Wet wall surfaces with water before applying cleaners; remove cleaners promptly by rinsing surfaces thoroughly with clear water.

5. Clean masonry with a proprietary acidic cleaner applied according to manufacturer's written instructions.

6. Clean concrete masonry by cleaning method indicated in NCMA TEK 8-2A applicable to type of stain on exposed surfaces.

7. Clean stone trim to comply with stone supplier's written instructions.

8. Clean limestone units to comply with recommendations in ILI's "Indiana Limestone Handbook."

3.13 MASONRY WASTE DISPOSAL

A. Salvageable Materials: Unless otherwise indicated, excess masonry materials are Contractor's property. At completion of unit masonry work, remove from Project site.

END OF SECTION



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SECTION 05210 STEEL JOISTS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals and install steel joists, bridging, and accessories complete as shown on the Drawings and as specified herein.

1.02 RELATED WORK

A. Structural steel is included in Section 05120.

B. Miscellaneous metal is included in Section 05500.

C. Bearing plates are furnished under Section 05500 and installed under Section 04200.

D. Shop painting is included in Section 09901.

E. Field painting, except as specified herein, is included in Section 09902.

1.03 SUBMITTALS

A. Submit, in accordance with Section 01300, design calculations for special joists, shop drawings and product data, showing:

1. Location and size of all joists, bridging (including erection bridging), and accessories. .

2. Materials and details of construction of all members, including camber.

3. Details of installation of all members.

4. Size and length of all field welds to supports.

5. Erection marks. Mark each field piece to correspond to the shop drawings.

6. Uniform, concentrated and varying loads used to design the special joists indicated on the Drawings.

7. Product data for shop primer. Certify compatibility with additional coatings specified in Sections 09901 and 09902.

B. Certificates

1. Certification from the Steel Joist Institute showing that the manufacturer's products conform to the Institute's standards and load tables for the type of member provided.

2. Certification for welders.

Public Transportation Facility Steel Joists City of Key West, Florida 05210 - 1

© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 1.04 REFERENCE STANDARDS

A. Steel Joist Institute (SJI)

1. Standard Specifications for Open Web Steel Joists, K-Series.

2. Standard Specifications for Longspan Steel Joists, LH-Series and Deep Longspan Steel Joists, DLH-Series.

B. ASTM International

1. ASTM A325 - Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength.

2. ASTM B695 - Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel.

C. American Welding Society (AWS)

1. AWS D1.1 - Structural Welding Code - Steel.

D. Steel Structures Painting Council (SSPC):

1. SSPC-Paint 15 - Paint Specification No. 15 Steel Joist Shop Paint.

E. Where reference is made to one of the above standards, the revision in effect at the time of Bid opening shall apply.


A. Steel joists, bridging and accessories shall be fabricated in accordance with the standards of the Steel Joist Institute by a manufacturer certified by the Steel Joist Institute. Steel joists shall be of welded construction and top and bottom chords shall be constructed of hot rolled shapes. Rods, reinforcing bars, or cold formed shapes will not be allowed for top and bottom chords.

B. Field welding shall be done by certified welders in accordance with AWS D1.1.

1. Qualify welders in accordance with AWS D1.1 for each process and joint configuration.

2. WPS's for each joint type shall indicate proper AWS qualification and be available where welding is performed.


A. Handle material with cranes and derricks. Do not dump material off cars or trucks, or handle in any way likely to cause damage.

B. Store material on skids and not on the ground. Pile and block stored material to prevent bending or other damage.



C. Materials with excessive damage, in the opinion of the Engineer, shall not be incorporated in the work. Remove and replace them with new undamaged materials at no additional cost to the Owner.

1.07 PROJECT/SITE REQUIREMENTS

A. Verify at the site both the dimensions and work of other trades adjoining the work of this Section before installation of the items specified.

B. Coordinate locations of openings and weight of equipment mounted on steel joists.

C. Provide steel framing around openings and miscellaneous steel as required to erect the joists.

D. Provide additional web members at all concentrated loads not occurring at panel points.

E. See Drawings for loads applied to special joists. Locations and loads shown on the Drawings for equipment and appurtenances supported by special joists are approximate. Coordinate with the manufacturer(s) of the approved equipment and appurtenances to obtain the actual locations and operating loads for the design of special joists. Design joists using load combinations prescribed in the design code specified on the Drawings.

PART 2 PRODUCTS

2.01 MATERIALS

A. Open web steel joists shall conform to SJI Standard for Open Web Steel Joists, K-Series, size and location as shown on the Drawings.

B. Longspan steel joists shall conform to SJI Standard for Longspan Steel Joists, LH-Series and size and location as shown on the Drawings.

C. Bridging

1. Provide diagonal or horizontal bridging designed and installed in compliance with the requirements of the SJI Standard Specifications for the particular series used.

2. Connect all bridging to end walls unless otherwise shown on the Drawings.

3. Provide bridging as required to adequately brace bottom chords against lateral movement under a net uplift pressure indicated on the Drawings.

4. In no case shall the spacing between rows of bridging exceed that noted in the SJI Standard Specifications. Spacing between rows of bridging shall be approximately equal.

D. High strength steel bolts shall conform to ASTM A325 and shall be mechanically galvanized in accordance with ASTM B695, Class 50, Type II.

2.02 FINISHES

A. Apply shop primer in accordance with SSPC Paint Specification No.15.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 2.03 SURFACE PREPARATION AND SHOP COATINGSPAINTING

A. Prepare surfaces and apply shop paint in accordance with Section 09901.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install steel joists in accordance with the SJI Standard Specifications, approved shop drawings and the Drawings. Weld joists to supports as shown on the Drawings.

B. Weld or bolt bridging to joists and structural steel as shown on the Drawings. Bridging and bridging anchors shall be completely installed before construction loads are placed on the steel joists.

C. Do not attach supports or braces for equipment, piping, conduits, ductwork, or other utilities to steel joists, bridging, or accessories unless the steel joists have been designed and fabricated to support all loads due to the equipment, piping, conduits, ductwork, or other utilities.

3.02 FIELD PAINTING

A. Field Painting

1. After erection, prepare shop primed surfaces as approved and touch-up all steel surfaces which have become abraded or where paint has been omitted or removed due to welding or other erection procedure with the shop primer used.

3.03 INSPECTION

A. The Engineer reserves the right to inspect joists, bridging, and accessories in the field for compliance with the Steel Joist Institute standards, thisSections and the approved shop drawings. The Engineer may reject or require repair or refabrication of any joists, bridging or accessories not meeting these requirements.

END OF SECTION



SECTION 05410 PRE ENGINEERED COLD-FORMED STEEL ROOF TRUSSES

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and install all engineered, pre-fabricated light gauge cold-formed steel framing elements. Work includes:

1. Pre Engineered Cold-formed steel roof trusses.

2. Cold-formed Steel Framing Accessories

3. Anchorage, bracing and bridging.

1.02 RELATED WORK

A. Miscellaneous metals are included in Section 05500.

1.03 DEFINITIONS

A. Truss Component Manufacturer: The maker of the components that will be assembled into trusses by the Truss Fabricator.

B. Truss Fabricator: The manufacturer who assembles the truss component manufacturer’s components into compiled trusses.

C. Truss Designer: The design professional having responsibility for the design of the trusses.


A. ASTM International 1. ASTM A370-06 “Standard Test Methods and Definitions for Mechanical Testing of Steel

Products”. 2. ASTM A500-03a “Standard Specification for Cold-formed Welded and Seamless.

Carbon Steel Structural Tubing in Rounds and Shapes”. 3. ASTM A653-06a "Standard Specification for Sheet Steel, Zinc-Coated (Galvanized) or

Zinc-Iron Alloy- Coated (Galvannealed) by the Hot Dip Process." 4. ASTM A780-01 "Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized

Coatings."

5. American Welding Society (AWS) a. AWS D1.1 "Structural Welding Code - Steel." b. AWS D1.3 "Structural Welding Code - Sheet Steel."

6. American Iron and Steel Institute (AISI):

a. North American Specification for the Design of Cold-Formed Steel Structural Members, 2001 edition.

b. North American Standard for Cold-Formed Steel Framing – Truss Design, 2007 edition.

Public Transportation Facility Pre-Engineered Cold Formed Steel Trusses City of Key West, Florida 05410 - 1


7. Light Gage Steel Engineers Association (LGSEA): a. TechNote 5000: “Field Installation Guide for Cold-formed Steel Roof Trusses”. b. TechNote 551d: “Design Guide for Construction of Bracing of Cold-formed Steel

Trusses”. c. TechNote 551e: “Design Guide for Permanent Bracing of Cold-formed Steel

Trusses”.


A. AISI "Specifications": Calculate structural characteristics of cold-formed steel truss members according to AISI’s "Specification for the Design of Cold-Formed Steel Structural Members, latest edition.”

B. Structural Performance: Design, engineer, fabricate, and erect cold-formed steel trusses to withstand specified design loads within limits and under conditions required.

1. Design Loads: As specified. a. Deflections: Live load deflection meeting the following (unless otherwise specified): b. Roof Trusses: Vertical deflection less than or equal to 1/240 of the span.

2. Design framing systems to provide for movement of framing members without damage or overstressing, sheathing failure, connection failure, undue strain on fasteners and anchors, or other detrimental effects when subject to a maximum ambient temperature change (range) of 120 deg F (67 deg C).

3. Conform to the requirements of the Florida Building Code 2010 with 2012 amendments.

4. Truss system, with framing components and accessories, shall provide a complete horizontal framing system ready for deck installation meeting all specified design requirements.

1.06 SUBMITTALS

A. Submit Truss Component Manufacturer’s descriptive literature for each item of Cold-formed metal framing and each accessory specified in this section.

B. Submit truss drawings, sealed and signed by a qualified Florida registered Professional Engineer, verifying truss’ ability to meet local code and design requirements.

1. Include: a. Description of design criteria. b. Truss layout placement drawings indicating the number, type, locations and spacing of

all truss and all framing members. c. Details of truss loading, reactions, uplifts, support locations, material sizes and

gauges, permanent truss web bracing and splices as required for a complete installation.

d. Truss member sizes and gauges and connections at truss joints.



C. Truss Component Manufacturer’s printed installation instructions for handling, storage and installation of each item of Cold-formed metal trusses, framing, bracing and accessories specified in this section.


A. Truss Designer Qualifications: Truss design shall be performed by an experienced cold-formed steel truss Florida registered Professional engineer with not less than five (5) years of satisfactory experience designing cold-formed steel truss systems equal in material, design, and extent to the systems required for this Project. Design shall be performed in accordance with the methodologies recommended in AISI and LGSEA references.

B. Truss Component Manufacturer Qualifications: Truss components shall be manufactured by an experienced cold-formed steel manufacturer with not less than five (5) years of satisfactory experience designing and manufacturing cold-formed steel truss system components equal in material, design, and extent to the systems required for this Project.

C. Truss Fabricator Qualifications: Truss fabrication shall be performed by an experienced cold-formed steel fabricator with not less than five (5) years of satisfactory experience fabricating cold-formed steel truss systems equal in material, design, and extent to the systems required for this Project.

1. Cold-formed steel truss system installation shall be performed by an experienced installer approved by the steel truss system fabricator.

D. Pre Installation Meeting

1. Prior to scheduled installation of the truss system, the Contractor shall schedule a meeting with the truss installer, mechanical systems installer and electrical systems installer. The purpose of the meeting is to review potential interface conflicts and coordinate layout and support provisions.

E. Welding Standards: Comply with applicable provisions of AWS D1.1 "Structural Welding Code--Steel" and AWS D1.3 "Structural Welding Code--Sheet Steel."

1. Qualify welding processes and welding operators in accordance with AWS "Standard Qualification Procedure."


A. Deliver materials in fabricator’s unopened containers or bundles, fully identified by name, brand, type and grade. Follow all recommendations from the truss component manufacturer and exercise care to avoid damage during unloading, storing and erection.

B. Store trusses on blocking, pallets, platforms or other supports off the ground and in an upright position sufficiently braced to avoid damage from excessive bending and as recommended by the truss component manufacturer.

C. Protect trusses and accessories from corrosion, deformation, damage and deterioration when stored at job site. Keep trusses free of dirt and other foreign matter.




A. During construction, adequately distribute all loads applied to trusses so as not to exceed the carrying capacity of any one joist, truss or other component.

PART 2 PRODUCTS

2.01 COMPONENTS

A. Provide standard steel truss members, bracing, bridging, blocking, reinforcements, fasteners and accessories with each type of steel framing required to provide a complete Cold-formed steel truss and horizontal framing system ready for deck installation.

2.02 MATERIALS

A. Materials:

1. Truss chords shall be cold form fabricated from structural quality steel sheet per ASTM A653.Truss chord materials shall have a minimum yield strength of 55,000 psi.

2. Truss webs shall be cold form fabricated from structural quality steel tubing per ASTM A500 with a minimum yield strength of 45,000 psi.

3. Bracing, bridging and blocking members shall be cold form fabricated of commercial quality steel sheet per ASTM A653 with a minimum yield strength of 55,000 psi.

4. All truss chord and web components shall be fabricated with rolled or closed edges to minimize the danger of cutting during handling.

B. All steel truss components, bracing, bridging and blocking:

1. Design Uncoated-Steel Thickness shall have a minimum of 16 ga., 0.0538 inch (1.37 mm).

C. Finish: Provide components with protective zinc coating complying with ASTM A653, minimum G60 coating.

D. Fastenings:

1. All fasteners shall be as recommended by the truss component manufacturer and shall bear the stamp of the truss component manufacturer for identification.

2.03 FABRICATION

A. Factory fabricate cold-formed steel trusses to be plumb, square, true to line, and with connections securely fastened, according to the requirements of this Section.

1. Fabricate truss assemblies in jig templates to insure consistent component placement and alignment.



2. Cut truss members by sawing or shearing or plasma cutting.

B. Care shall be taken during handling, delivery and erection. Brace, block, or reinforce truss as necessary to minimize member and connection stresses.

C. Fabrication Tolerances: Fabricate trusses to a maximum allowable tolerance variation from plumb, level, and true to line of 1/8 inch in 10 feet (1:960) and as follows:

1. Spacing: Space individual trusses no more than plus or minus 1/8 inch (3mm) from plan location. Cumulative error shall not exceed minimum fastening requirements of sheathing or other finishing materials.

2. Squareness: Fabricate each Cold-formed steel truss to a maximum out-of-square tolerance of 1/8 inch (3mm).

PART 3 EXECUTION

3.01 INSTALLATION, GENERAL

A. General

1. Erection of trusses, including proper handling, safety precautions, temporary bracing and other safeguards or procedures are the responsibility of the Contractor and the Contractor’s installer.

2. Install all erection bracing and permanent bracing and bridging before the application of any loads. Follow the recommendations of the LGSEA “Field. Installation Guide for Cold-Formed Steel Roof Trusses”.

3. Provide bracing which holds trusses straight and plumb and in a safe condition until decking and permanent truss bracing has been fastened to form a structurally sound system.

4. All installation sub-contractors shall employ proper construction procedures to insure adequate distribution of temporary construction loads so that the load carrying capacity of any single truss or group of trusses is not exceeded.

B. Erect trusses with plane of truss webs vertical and parallel to each other, accurately located at design spacing indicated.

C. Install permanent bracing and bridging as designed by the truss design engineer and as shown on the approved shop drawing.

D. Provide proper lifting equipment suited to sizes and types of trusses required, applied at lift points recommended by truss fabricator. Exercise care to avoid damage to truss members during erection and to keep horizontal bending of the trusses to a minimum.

E. Provide framing anchors as indicated or accepted on the engineering design drawing or erection drawings. Anchor trusses securely at bearing points.



F. Install roof framing and accessories plumb, square, true to line, and with connections securely fastened, according to manufacturer’s recommendations.

1. DO NOT cut truss members without prior approval of truss engineer.

2. Fasten cold-formed steel roof framing by welding or screw fastening. Wire tying of roof framing is not permitted.

3. Comply with AWS requirements and procedures for welding, appearance and quality of welds, and methods used in correcting welding work. a. Locate mechanical fasteners and install according to cold-formed roof framing

manufacturer’s instructions with screw penetrating joined members by not less than 3 exposed screw threads.

b. Install roof framing in one-piece lengths, unless splice connections are indicated. c. Provide temporary bracing and leave in place until trusses are permanently stabilized.

G. Erection Tolerances: Install trusses to a maximum allowable tolerance variation from plumb, level, and true to line of 1/8 inch in 10 feet (1:960) and as follows:

1. Space individual trusses no more than plus or minus 1/8 inch (3 mm) from plan location. Cumulative error shall not exceed minimum fastening requirements of sheathing or other finishing materials.

3.02 ROOF TRUSS INSTALLATION

A. Install, bridge, and brace trusses according to manufacturer’s recommendations and requirements of this Section.

B. Space trusses not more than 24" on center, unless noted otherwise on the approved shop drawings.

C. Do not alter, cut, or remove truss members or connections of trusses.

D. Erect trusses with plane of truss webs plumb and parallel to each other, align, and accurately position at spacings indicated.

E. Erect trusses without damaging truss members or connections.

F. Align truss bottom chords with load-bearing studs or continuously reinforce track to transfer loads to structure. Anchor trusses securely at all bearing points.

G. Install continuous bridging and permanent truss bracing per truss design requirements.

H. Install necessary roof cross and diagonal bracing per truss design professional recommendations.

3.03 REPAIRS AND PROTECTION

A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on fabricated and installed cold-formed steel framing with galvanizing repair paint according to ASTM A780-01 and the manufacturer’s instructions.



END OF SECTION



SECTION 05500 MISCELLANEOUS METAL

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and install all miscellaneous metal complete as shown on the Drawings and as specified herein.

1.02 RELATED WORK

A. Structural steel, steel joists and steel roof deck are included in Division 5.

1.03 SUBMITTALS

A. Submit, in accordance with Section 01300, shop drawings and product data showing materials of construction and details of installation for:

1. Shop drawings, showing sizes of members, method of assembly, anchorage and connection to other members.

B. Samples

1. Submit samples as requested by the Engineer during the course of construction.

C. Design Data

1. Submit calculations or test data demonstrating that the railings will resist the loads specified in the Florida Building Code at the post spacing provided. Calculations shall be stamped by a professional engineer registered in state of Florida.

D. Test Reports

1. Certified copy of mill test reports on each steel stainless steel aluminum proposed for use showing the physical properties and chemical analysis.

E. Certificates

1. Submit certification that the railing system is in compliance with OSHA requirements and the Florida Building Code.

2. Certify that welders have been qualified under AWS, within the previous 12 months, to perform the welds required under this Section.


A. Aluminum Association (AA)

1. AA M31C22A41

Public Transportation Facility Miscellaneous Metals City of Key West, Florida 05500 - 1


a. M31: Mechanical Finish, Fine Satin b. C22: Finish, Medium Matte c. A41: Clear Anodic Coating, Class I


1. ASTM A36 - Standard Specification for Carbon Structural Steel.

2. ASTM A48 - Standard Specification for Gray Iron Castings.

3. ASTM A53 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.

4. ASTM A108 - Standard Specification for Steel Bars, Carbon, Cold Finished, Standard Quality.

5. ASTM A123 - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

6. ASTM A153 - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

7. ASTM A240 - Standard Specification for Heat-Resisting Chromium and Chromium-Nickel Stainless Plate, Sheet, and Strip Pressure Vessels.

8. ASTM A276 - Standard Specification for Stainless Steel Bars and Shapes.

9. ASTM A307 - Standard Specification for Carbon Steel Bolts and Studs, 60,000 Psi Tensile Strength.

10. ASTM A325 - Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength.

11. ASTM A500 - Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.

12. ASTM A501 - Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing.

13. ASTM A536 - Standard Specification for Ductile Iron Castings.

14. ASTM A570 - Standard Specification for Steel, Sheet and Strip, Carbon, Hot-Rolled, Structural Quality.

15. ASTM A1008 - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable.

16. ASTM B209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.



17. ASTM B221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles and Tubes.

18. ASTM B429 - Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube.

19. ASTM F1554 -Standard Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength

20. ASTM F2329 - Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon Screws, Washers, Nuts, and Special Threaded Fasteners

C. American Institute of Steel Construction (AISC)

1. Specification for Structural Steel Buildings – Allowable Stress Design and Plastic Design.

D. American Welding Society (AWS)

1. AWS D1.1 - Structural Welding Code - Steel.

2. AWS D1.2 - Structural Welding Code - Aluminum.

3. AWS D1.6 - Structural Welding Code - Stainless Steel

E. Federal Specifications

1. FS-FF-B-575C - Bolts, Hexagonal and Square

F. Occupational Safety and Health Administration (OSHA)

G. Florida Building Code

H. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. The work of this Section shall be completely coordinated with the work of other Sections. Verify, at the site, both the dimensions and work of other trades adjoining items of work in this Section before fabrication and installation of items herein specified.

B. Furnish to the pertinent trades all items included under this Section that are to be built into the work of other Sections.

C. All welding shall be performed by qualified welders and shall conform to the applicable AWS welding code. Welding of steel shall conform to AWS D1.1 and welding of aluminum shall conform to AWS D1.2 and welding of stainless steel shall conform to AWS D1.6.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 1.06 DELIVERY, STORAGE AND HANDLING

A. Deliver items to be incorporated into the work of other trades in sufficient time to be checked prior to installation.

B. Store materials on skids and not on the ground and block up so that they will not become bent or otherwise damaged. Handle materials with cranes or derricks. Do not dump material off cars or trucks nor handle in any other way that will cause damage.

C. Repair items that have become damage or corroded to the satisfaction of the Engineer prior to incorporating them into the work.


A. Field measurements shall be taken at the site, prior to fabrication of items, to verify or supplement indicated dimensions and to ensure proper fitting of all items.

PART 2 PRODUCTS

2.01 GENERAL

A. The use of manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configuration desired.

B. Like items of materials shall be the end products of one manufacturer in order to provide standardization for appearance, maintenance and manufacturer's service.

2.02 MATERIALS

A. Unless otherwise noted, materials for miscellaneous metals shall conform to the following standards:

1. Structural Steel Wide flange shapes: ASTM A992

2. Other shapes; plates; rods and bars: ASTM A36

3. Structural Steel Tubing ASTM A500, Grade B

4. Welded and Seamless Steel Pipe ASTM A501 or ASTM A53, Type E or S, Grade B Schedule 40. Use standard malleable iron fittings, galvanized for exterior work

5. Steel Sheets ASTM A1008

6. Gray Iron Castings ASTM A48, Class 35

7. Ductile Iron Castings ASTM A536, Grade 65-45-12

8. Aluminum Extruded Pipe ASTM B429, Alloy 6063 T6 and Alloy 6061 T6 as indicated



9. Aluminum Extruded Shapes ASTM B221, Alloy 6061 T6

10. Aluminum Sheet and Plate ASTM B209, Alloy 6061 T6

11. Stainless Steel Plates, Sheets, and Structural Shapes a. Exterior, Submerged or Industrial Use ASTM A240, Type 316 (Type 316L for

welded) b. Interior and Architectural Use ASTM A240, Type 304

12. Stainless Steel Bolts, Nuts, and Washers ASTM A276, Type 316

13. Carbon Steel Bolts and Studs ASTM A307, Grade A (hot dip galvanized nuts and washers where noted)

14. High Strength Steel Bolts, Nuts and washers ASTM A325 (mechanically galvanized per ASTM B695, Class 50, where noted) a. Elevated Temperature Exposure Type I b. General Application Type I or Type II

15. Galvanizing ASTM A123, Zn w/0.05 percent minimum Ni

16. Galvanizing, hardware ASTM A153, Zn w/0.05 percent minimum Ni

17. Galvanizing, anchor bolts ASTM F2329, Zn w/0.05 percent minimum Ni

18. Welding electrodes, steel AWS A5.1 E70xx

2.03 ANCHORS, BOLTS AND FASTENING DEVICES

A. Unless otherwise noted, anchor bolts shall be ASTM F1554, Grade 36. Provide standard headed bolts with heavy hex nuts and Grade A washers. Where galvanized anchor bolts are shown or specified, provide standard headed bolts with heavy hex nuts and Grade A washers, all galvanized in accordance with ASTM F2329.

B. Unless otherwise noted, bolts for the connection of carbon steel or iron shall be steel machine bolts; bolts for the connection of galvanized steel or iron shall be galvanized steel or stainless steel machine bolts; and bolts for the connection of aluminum or stainless steel shall be stainless steel machine bolts.

C. Unless otherwise noted, expansion anchors shall be zinc plated carbon steel wedge type anchors complete with nuts and washers. Type 316 stainless steel wedge type anchors shall be used where they will be submerged or exposed to the weather or where stainless steel wedge type anchors are shown or specified. When the length or embedment of the bolt is not noted on the Drawings, provide length sufficient to place the wedge and expansion cone portion of the bolt at least 1-in behind the concrete reinforcing steel. Expansion anchors shall be Hilti, Kwik-Bolt III; Simpson Strong-Tie Wedge-All; Powers Power-Stud or equal.



D. Adhesive anchor system, for fastening to solid concrete substrate, shall be a system manufactured for the installation of post installed studs including anchoring hardware and chemical dispenser. Injection adhesive shall be a two-component epoxy system including a hardener and a resin, furnished in pre-measured side-by-side cartridges which keep the two components separate. Side-by-side cartridges shall be designed to accept a static mixing nozzle which thoroughly blends the two components and allows injection directly into the drilled hole. Provide zinc plated carbon steel or Type 316 stainless steel stud assemblies as indicated on the Drawings consisting of an all-thread anchor rod with nut and washer. Adhesive anchor system shall be Hilti RE 500 SD; Simpson Strong Tie SET-XP; ITW Ramset Red Head Epcon G5; or equal. Unless otherwise noted, anchorage designs shown on the Drawings are based on Hilti RE 500 SD.

E. Adhesive anchors, for fastening to hollow concrete block or brick, or hollow-core precast concrete planks shall be a three-part stud, screen tube and chemical dispenser anchoring system. Adhesive cartridges shall contain pre-measured amounts of resin and hardener which are mixed and deposited in a screen tube by a dispenser. Provide zinc plated carbon steel or Type 316 stainless steel stud assemblies as indicated on the Drawings consisting of an all-thread anchor rod with nut and washer. Anchors shall be Hilti HIT HY-20 System; Rawlplug Company Chem-Fast; ITW Ramset Redhead Ceramic 6 Epcon System, or equal.

F. Automatic end welded headed anchor studs shall be flux ended studs made from cold drawn steel, ASTM A108 Grades C-1010 through C-1020. Headed anchor studs shall be Nelson, H4L Headed Concrete Anchors or equal.

G. Machine bolts and nuts shall conform to Federal Specification FF-B-575C. Bolts and nuts shall be hexagon type. Bolts, nuts, screws, washers and related appurtenances shall be Type 316 stainless steel.

H. Toggle bolts shall be Hilti, Toggler Bolt or equal.

2.04 RAILINGS

A. Handrail and railing systems shall comply with the requirements of OSHA and the Florida Building Code

B. Aluminum railing and handrail shall be welded or mechanically fastened, seamless, extruded aluminum pipe system. Rails shall be 6063-T6 alloy. Posts shall be 6061-T6 alloy. Splice and reinforcing sleeves, brackets, end caps, toeboards, etc, shall be aluminum alloy 6063-T6 or 6061-T6. Cast fittings shall be aluminum alloy No. 214. Railing system fastening hardware shall be Type 316 stainless steel. After welding, aluminum shall be anodized. All railing, posts, toeboards and exposed aluminum shall be anodized with an architectural Class I satin finish providing a minimum coating thickness of 0.7 mils and a minimum coating weight of 32 milligrams per square inch in compliance with AA M12C22A41.

C. Railings shall , as shown on the architectural Drawings, fabricated with 1-1/2-in nominal diameter pipe. Posts shall be Schedule 80 pipe, minimum and rails and handrail shall be Schedule 40 pipe, minimum. Posts and top rails shall be continuous. Spacing of posts shall not exceed 5-ft on center and shall be uniformly spaced except as otherwise shown on the Drawings. All railing posts shall be vertical.



D. Welds shall be circumferential welds ground smooth and even to produce a railing that is neat in appearance and structurally sound. Welding methods shall be in conformity with AWS standards for the materials being joined. For welding aluminum, use a weld filler alloy that is compatible with the alloys to be joined, that will not discolor the pieces to be joined and that will not be discolored by anodizing. All rails to post connections shall be coped and fastened by continuous welds. There shall be no burrs, sharp edges or protrusions on any weld on any part of the handrail system. After fabrication, the welds and surrounding area shall be cleaned and hand buffed to blend with the adjacent finish. All mechanical fasteners shall be unobtrusively located in countersunk holes with the top flush with the surface of the rail. Bends in the railing shall be as indicated by the Drawings. No distortion of the circular railing shape will be allowed. Bends and terminal sections shall be made without the use of fittings. Corner bends shall be mitered and welded bends.

E. Railing shall be assembled in sections as long as practical but shall not be greater than 24-ft in length. A field splice shall be used when an assembled section is to be attached to another section.

1. Field splices shall use internal splice sleeves located within 8-in of railing posts. The sleeve shall be welded to the rail on one side and fastened with a set screw to the rail on other side. The field splice shall be detailed to take the differential expansion between the railing system and the supporting structure.

F. The bases or supports for railing posts and handrail shall be the types indicated on the Drawings.

1. Where non-removable railing is set in concrete, the posts shall be placed in 2-1/2-in diameter formed concrete openings and firmly caulked with cement grout. Collars shall be placed around the post bases and fastened in place with set screws on the side of the post away from the walkway. Posts shall be placed with the centerline 4-in from the edge of the concrete except that posts shall be set at the centerline of concrete curbs.

2. Stainless steel and aluminum railing posts, which may collect condensation, shall have a 3/16-in drain hole drilled immediately above the concrete encased area, the base flange, or supporting socket on the side away from the walking area. The bottom of the rail post between the drain hole and the bottom of the post shall be filled with an inert material such as a compressed closed cell neoprene rod.

3. Where handrail is to be fastened to walls, the rails shall be provided with screwed wall flanges fastened to the walls with three 3/8-in stainless steel flat head machine screws. The horizontal projection of the handrail support off the wall shall provide 2-1/2-in minimum clearance below the bottom of the handrail.

G. Safety gates, for railing openings, shall be fabricated of matching pipe and rail material and configuration. The gates shall be self-closing gates with approved stop, latch and stainless steel closure spring and hinges.

H. Barrier chains, for railing openings, shall be fabricated of stainless steel chains. Chain shall be 1/4-in stainless steel links, with eleven links per foot as manufactured by Eastern Chain Works, Inc., NY; Lawrence Metal Products, Inc. or equal. Chains shall be fastened to the handrail posts at the elevation of each rail. One end of each chain shall be connected to one post with a 1/4-in



diameter stainless steel eye bolt and the other end shall be connected to the other post by means of a heavy chromium plated bronze swivel eye slide harness snap and a similar eye bolt.

I. Toeboards shall be provided on all railing adjacent to a drop in elevation of 4-ft or more. Toeboards are not required on the inclined portion of stairway railings or where concrete or steel curbs, 4-in or more in height, are present. Toeboards shall be 4-in high channels of the same material as the railing. The channels shall have a minimum thickness of 1/8-in and have flanges of not less than 3/4-in nor more than 1-1/2-in in width. Toeboards shall be positioned with a maximum clearance of 1/4-in from the floor and fastened to railing posts with 1/4-in stainless steel U-bolts, with J-bolts at corner posts and with clip angles and two 1/4-in stainless steel expansion bolts at walls.

J. Infill panel screens shall be fabricated as shown on the architectural drawings. The finish on all components of the infill panels shall be the same as on the pipe portion of the handrail. The frame shall be attached to the pipe rail with Type 316 stainless steelscrews or by other fasteners that ensure rigid construction. Fastening shall be as inconspicuous as possible.

K. All railings shall be properly protected by paper, or by an approved coating or by both against scratching, splashes or mortar, paint, or other defacements during transportation and erection and until adjacent work by other trades has been completed. After protective materials are removed, the surfaces shall be made clean and free from stains, marks, or defects of any kind.

2.05 LADDERS

A. Ladders, ladder accessories and ladder clearances shall conform to the requirements of OSHA.

B. Aluminum ladders shall be fabricated with 2-1/2-in by 1/2-in aluminum barside rails spaced a minimum 18-in apart. Rungs shall be fabricated from extruded aluminum shapes, alloy 6063-T5/T6, with a serrated tread, number A5680 by Washington Aluminum Company or equal spaced 12-in on center. Wall support brackets shall be Type 316 stainless steel spaced 8-ft on center with Type 316 stainless steel fasteners. Where possible, the side rails shall be fastened to the floor with 1/2-in diameter Type 316 stainless steel expansion bolts.

C. Ladder cages shall be constructed of aluminum alloy 6061-T6 for plates and bars and alloy 6063-T5 for extrusion.

D. Provide a rigid fall prevention system at each ladder more than 20 feet high and as indicated on the Drawings.

1. The system shall consist of an aluminum or stainless steel vertical rigid rail, rail extension, stainless steel mounting hardware and fasteners, two non-corrosive metal sliding fall prevention devices, two stainless steel connecting straps, two full body harnesses with "D" rings, accessories and all other materials required for the complete installation and operation of the fall prevention system in accordance with the manufacturer's recommendations.

2. Provide 36-in minimum height permanent aluminum or stainless steel rail extension compatible with the sliding fall prevention device to ensure worker is attached to the fall prevention system while mounting and dismounting from a platform or landing. Ladder extension may be removable at manholes, hatches, and roof scuttles. Provide stainless steel



hardware and fasteners, accessories, and all other materials required for the complete installation to ladders in accordance with the manufacturer's recommendations.

3. Provide alignment between successive pieces of rail. Provide allowance for expansion and contraction on long runs.

4. In addition to the "D" ring used for attachment to the sliding fall prevention device, the harness shall have at least two "D" rings for the attachment of safety straps and lanyards.

5. The fall prevention system shall be attached to ladders installed under this contract. The sliding fall prevention device shall move freely up and down the rail with the worker in the normal climbing position. The fall prevention system shall stop the fall of a worker independently from offset ladders, platforms or safety cages.

6. Conform to OSHA Regulation 1910.27 for fall prevention system. Rope and cable systems will not be allowed.

7. The fall prevention system shall be Saf-T-Climb by North Safety Products; TS Fall Prevention System by TS Products, Inc.; Glideloc System by Rose Manufacturing Company, or equal.

E. Ladder safety post extensions shall be provided on all fixed ladders 20 feet or less in height located below hatches and roof scuttles and as indicated on the Drawings. The aluminum telescoping tubular safety post extension shall lock in its vertical position and extend a minimum of 36-in above the opening and shall be secured to the ladder rungs with stainless steel fasteners and brackets. The ladder post extension shall be Ladder UP Safety Post, Model LU-4 by Bilco Co.; Series L1E Safety Extension by Halliday Products; Pull-up Bar by Access Manufacturing, or equal.

F. Ladder shields shall be "Ladder Gate" by Siebe Norton, Inc., Cerritos, CA or equal. The bottom of the ladder shield shall be 7-ft above finish grade.

G. Manhole rungs for cast-in-place concrete work shall be 12-3/4-in wide with a drop front design and a serrated step surface and comply with the requirements of OSHA. Aluminum rungs shall be of alloy 6061-T6.

H. Ship ladders shall be of all aluminum construction. Treads shall have abrasive nosing as manufactured by Reliance Steel Products Co.; IKG Industries or equal.

2.06 MISCELLANEOUS ALUMINUM

A. All miscellaneous metal work shall be formed true to detail, with clean, straight, sharply defined profiles and smooth surfaces of uniform color and texture and free from defects impairing strength or durability. Holes shall be drilled or punched. Edges shall be smooth and without burrs. Fabricate supplementary pieces necessary to complete each item though such pieces are not definitely shown or specified.

B. Connections and accessories shall be of sufficient strength to safely withstand the stresses and strains to which they will be subjected. Exposed joints shall be close fitting and jointed where least conspicuous. Threaded connections shall have the threads concealed where practical. Welded connections shall have continuous welds or intermittent welds as specified or shown.



The face of welds shall be dressed flush and smooth. Welding shall be on the unexposed side as much as possible in order to prevent pitting or discoloration of the aluminum exposed surface. Provide holes for temporary field connections and for attachment of the work of other trades.

C. Miscellaneous aluminum items shall include: beams, angles, closure angles, grates, hatches, floor plates, stop plates, stair nosings and any other miscellaneous aluminum called for on the Drawings and not otherwise specified.

D. Angle frames for hatches, beams, grates, etc., shall be complete with welded strap anchors attached.

E. Aluminum diamond plate and floor plate shall have a minimum thickness of 3/8-in. Frames and supports shall be of aluminum construction. Fastening devices and hardware shall be Type 316 stainless steel. Plates shall have a mill finish.

F. Stair treads for aluminum stairs shall have abrasive non-slip nosing as approved.

G. Aluminum nosing at concrete stairs shall be Wooster Products, Inc.; Alumogrit Treads, Type 116; similar by Barry Pattern and Foundry Co.; Andco or equal. Furnish with wing type anchors and flat head stainless steel machine screws, 12-in on center. Nosing shall also be used at concrete ladder openings. Nosing shall a single piece for each step extending to within 3-in at each side of stair or full ladder width. Set nosing flush with stair tread finish at concrete stairs. Furnish treads with heavy duty protective tape cover.

2.07 MISCELLANEOUS STEEL


B. Connections and accessories shall be of sufficient strength to safely withstand the stresses and strains to which they will be subjected. Exposed joints shall be close fitting and jointed where least conspicuous. Threaded connections shall have the threads concealed where practical. Welded connections shall have continuous welds or intermittent welds as specified or shown. The face of welds shall be dressed flush and smooth. Provide holes for temporary field connections and for attachment of the work of other trades.

C. Miscellaneous steel items shall include: beams, angles, lintels, metal stairs, support brackets, base plates for other than structural steel or equipment, closure angles, bridge crane rails, monorail hoist beams, holddown straps and lugs, door frames, splice plates, subframing at roof openings and any other miscellaneous steel called for on the Drawings and not otherwise specified.

D. Steel pipe pieces for sleeves, lifting attachments and other functions shall be Schedule 40 pipe unless otherwise shown on the Drawings. Wall and floor sleeves, of steel pipe, shall have welded circumferential steel waterstops at mid-length.

E. Lintels, relief angles or other steel supporting masonry or embedded in masonry shall be galvanized.



F. All steel finish work shall be thoroughly cleaned, by effective means, of all loose mill scale, rust and foreign matter and shall be given one shop coat of primer compatible with the finish coat after fabrication but before shipment. Paint shall be omitted within 3-in of proposed field welds. Paint shall be applied to dry surfaces and shall be thoroughly and evenly spread and well worked into joints and other open spaces.

G. Galvanizing, where required, shall be the hot-dip zinc process after fabrication. Coating shall be not less than 2 oz/sq ft of surface.

2.08 MISCELLANEOUS STAINLESS STEEL


B. Connections and accessories shall be of sufficient strength to safely withstand the stresses and strains to which they will be subjected. Exposed joints shall be close fitting and jointed where least conspicuous. Threaded connections shall have the threads concealed where practical. Welded connections shall have continuous welds or intermittent welds as specified or shown. The face of welds shall be dressed flush and smooth. Provide holes for temporary field connections and for attachment of the work of other trades.

C. Miscellaneous stainless steel items shall include: beams, angles, bar racks and any other miscellaneous stainless steel called for on the Drawings and not otherwise specified.

2.09 CASTINGS

A. Casting shall be of good quality, strong, tough, even-grained, smooth, free from scale, lumps, blisters, sand holes and defects of any kind which render them unfit for the service for which they are intended. Castings shall be thoroughly cleaned and will be subjected to a hammer inspection in the field by the Engineer. All matching surfaces shall be machined to a true plane surface to allow contact surfaces to seat at all points without rocking. Allowances shall be made in the patterns so that the thickness specified shall not be reduced in obtaining finished surfaces. Castings will not be acceptable if the actual weight is less than 95 percent of the theoretical weight computed from dimensions. The Contractor shall provide facilities for weighing castings in the presence of the Engineer.

B. Frames, covers, cast grates and trench drains for structures shall be gray iron castings except as otherwise specified or indicated on the Drawings. Sizes shall be as shown on the Drawings. Covers shall have letters "WATER," "SANITARY SEWER," or DRAIN," as applicable, embossed on top.

C. Frames and covers for installation in slabs shall be heavy duty, R-6013-R-6099 Series as manufactured by Neenah Foundry Co., or equal.

D. Electrical and telephone manhole and handhole frames and covers for structures shall be ductile iron castings. The covers shall be watertight. Covers shall have the word "ELECTRIC," "HIGH VOLTAGE," "LOW VOLTAGE," "SIGNAL," "TELEPHONE," as applicable, embossed on or



cast into the top in letters 2-in high. The clear opening shall be 36-in unless otherwise indicated on the Drawings.

E. Trench drains shall be of the length shown on the Drawings and shall be heavy duty, Series with a "Type A" cover as manufactured by Neenah Foundry Co. or equal.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install all items except those to be embedded in concrete or other masonry which shall be installed under Division 3 and Division 4 respectively. Items to be attached to concrete or masonry after such work is completed shall be installed in accordance with the details shown. Fastening to wood plugs in masonry will not be permitted.

B. Abrasions in the shop primer shall be touched up immediately after erection. Areas left unprimed for welding shall be painted with primer after welding.

C. Zinc coating which has been burned by welding, abraded, or otherwise damaged shall be cleaned and repaired after installation. The damage area shall be thoroughly cleaned by wire brushing and all traces of welding flux and loose or cracked zinc coating removed prior to painting. The cleaned area shall be painted with two coats of zinc oxide-zinc dust paint conforming to the requirements of Military Specifications MIL-P-15145. The paint shall be properly compounded with a suitable vehicle in the ratio of one part zinc oxide to four parts zinc dust by weight.

D. Specialty products shall be installed in accordance with the manufacturer's recommendations.

E. Expansion bolts shall be checked for tightness a minimum of 24 hours after initial installation.

F. Install adhesive anchor system in strict compliance with the manufacturer's recommendations, including drill bit diameter, surface preparation, temperature, moisture conditions, injection and installation of bolts. Use oil free compressed air to blast out loose particles and dust from the drilled holes. Bolts must be clean and free of dirt, oil, grease, ice or other material which would reduce bond.

G. Headed anchor studs shall be welded in accordance with manufacturer's recommendations.

H. All railings shall be erected to line and plumb.

I. All steel surfaces that come into contact with exposed concrete or masonry shall receive a protective coating of an approved heavy bitumastic troweling mastic applied in accordance with the manufacturer's instructions prior to installation.

J. Where aluminum contacts a dissimilar metal, apply a heavy brush coat of zinc-chromate primer followed by two coats of aluminum metal and masonry paint to the dissimilar metal.

K. Where aluminum contacts masonry or concrete, apply a heavy coat of approved alkali resistant paint to the masonry or concrete.



L. Where aluminum contacts wood, apply two coats of aluminum metal and masonry paint to the wood.

M. Between aluminum gratings, aluminum stair treads, or aluminum handrail brackets and steel supports, insert 1/4-in thick neoprene isolator pads, 85 plus or minus 5 Shore A durometer, sized for full width and length of bracket or support.

END OF SECTION



Public Transportation Facility STANDING-SEAM METAL ROOF PANELSCity of Key West, Florida 07412 - 1

SECTION 07412 STANDING-SEAM METAL ROOF PANELS

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and install standing seam metal roofing system complete as shown on the drawings and as specified herein.

1.02 SUBMITTALS

A. Product Data: For each type of product.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each type of panel and accessory.

B. LEED Submittals:

1. Product Data for Credit MR 4: For products having recycled content, documentation indi-cating percentages by weight of postconsumer and preconsumer recycled content. Include statement indicating cost for each product having recycled content.

2. "Product Test Reports for Credit SS 7.2" Subparagraph below applies to LEED-NC, LEED-CS, and LEED for Schools; coordinate with requirements for roof coatings.

3. Product Test Reports for Credit SS 7.2: For roofing materials, documentation indicating that roofing materials comply with Solar Reflectance Index requirement.

C. Shop Drawings:

1. Include fabrication and installation layouts of metal panels; details of edge conditions, joints, panel profiles, corners, anchorages, attachment system, trim, flashings, closures, and accessories; and special details.

2. Accessories: Include details of the flashing, trim, and anchorage systems, at a scale of not less than 1-1/2 inches per 12 inches (1:10).

D. Samples for Initial Selection: For each type of metal panel indicated with factory-applied color finishes.

1. Include similar Samples of trim and accessories involving color selection.

E. Samples for Verification: For each type of exposed finish required, prepared on Samples of size indicated below.

1. Metal Panels: 12 inches long by actual panel width. Include clips, fasteners, closures, and other metal panel accessories.

F. Qualification Data: For Installer.



G. Product Test Reports: For each product, for tests performed by a qualified testing agency.

H. Field quality-control reports.

I. Sample Warranties: For special warranties.

J. Maintenance Data: For metal panels to include in maintenance manuals.

1.03 REFERENCED STANDARDS

A. American Architectural Manufacturers Association

1. AAMA 611 - Voluntary Specification for Anodized Architectural Aluminum

2. AAMA 620 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Aluminum Substrates

3. AAMA 621 - Voluntary Specification for High Performance Organic Coatings on Coil Coated Architectural Hot Dipped Galvanized (HDG) and Zinc-Aluminum Coated Steel Substrates


1. ASTM A 240/A 240M - Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

2. ASTM B 209 - Specification for Aluminum and Aluminum-Alloy Sheet and Plate

3. ASTM C 645 - Specification for Nonstructural Steel Framing Members

4. ASTM C 754 - Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products

5. ASTM C 920 - Specification for Elastomeric Joint Sealants

6. ASTM C 1311 - Specification for Solvent Release Sealants

7. ASTM D 226/D 226M - Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

8. ASTM D 1970 -Specification for Self-Adhering Polymer Modified Bituminous Sheet Ma-terials Used as Steep Roofing Underlayment for Ice Dam Protection

9. ASTM D 2244 - Practice for Calculation of Color Differences from Instrumentally Meas-ured Color Coordinates

10. ASTM D 4214 - Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films

11. ASTM E 283 - Test Method for Determining Rate of Air Leakage through Exterior Win-dows, Curtain Walls, and Doors under Specified Pressure Differences across the Specimen



12. ASTM E 331 - Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference

13. ASTM E 1514 - Specification for Structural Standing Seam Steel Roof Panel Systems

14. ASTM E 1592 - Test Method for Structural Performance of Sheet Metal Roof and Siding Systems by Uniform Static Air Pressure Difference

15. ASTM E 1637 - Specification for Structural Standing Seam Aluminum Roof Panel Sys-tems

16. ASTM E 1646 - Test Method for Water Penetration of Exterior Metal Roof Panel Systems by Uniform Static Air Pressure Difference

17. ASTM E 1680 - Test Method for Rate of Air Leakage through ExteriorMetal Roof Panel Systems

18. ASTM E 1980 - Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces

19. ASTM E 2140 - Test Method for Weather Penetration of Metal Roof Panel Systems by Static Water Pressure Head

C. Cool Roof Rating Council

1. CRRC-1 - CRRC Product Rating Program

D. Sheet Metal and Air Conditioning Contractors' National Association

1. Architectural Sheet Metal Manual.

E. Underwriters Laboratories Inc.

1. UL 580 - Tests for Uplift Resistance of Roof Assemblies

F. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. Installer Qualifications: An entity that employs installers and supervisors who are trained and approved by manufacturer.

B. UL-Certified, Portable Roll-Forming Equipment: UL-certified, portable roll-forming equipment capable of producing metal panels warranted by manufacturer to be the same as factory-formed products. Maintain UL certification of portable roll-forming equipment for duration of work.


A. Deliver components, metal panels, and other manufactured items so as not to be damaged or de-formed. Package metal panels for protection during transportation and handling.



B. Unload, store, and erect metal panels in a manner to prevent bending, warping, twisting, and surface damage.

C. Stack metal panels horizontally on platforms or pallets, covered with suitable weathertight and ventilated covering. Store metal panels to ensure dryness, with positive slope for drainage of water. Do not store metal panels in contact with other materials that might cause staining, dent-ing, or other surface damage.

D. Retain strippable protective covering on metal panels during installation.

1.06 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather con-ditions permit assembly of metal panels to be performed according to manufacturers' written in-structions and warranty requirements.

1.07 COORDINATION

A. Coordinate sizes and locations of roof curbs, equipment supports, and roof penetrations with ac-tual equipment provided.

B. Coordinate metal panel installation with rain drainage work, flashing, trim, construction of sof-fits, and other adjoining work to provide a leakproof, secure, and noncorrosive installation.

1.08 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or re-place components of metal panel systems that fail in materials or workmanship within specified warranty period.

1. Failures include, but are not limited to, the following: a. Structural failures including rupturing, cracking, or puncturing. b. Deterioration of metals and other materials beyond normal weathering.

2. Warranty Period: Two years from date of Substantial Completion.

B. Special Warranty on Panel Finishes: Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal panels that show evidence of deterioration of factory-applied finishes within specified warranty period.

1. Exposed Panel Finish: Deterioration includes, but is not limited to, the following: a. Color fading more than 5 Hunter units when tested according to ASTM D 2244. b. Chalking in excess of a No. 8 rating when tested according to ASTM D 4214. c. Cracking, checking, peeling, or failure of paint to adhere to bare metal.

2. Finish Warranty Period: 20 years from date of Substantial Completion.

C. Special Weathertightness Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace standing-seam metal roof panel assemblies that fail to remain weath-ertight, including leaks, within specified warranty period.



1. Warranty Period: 20 years from date of Substantial Completion.

PART 2 PRODUCTS


A. Solar Reflectance Index: Not less than 58when calculated according to ASTM E 1980.

B. Structural Performance: Provide metal panel systems capable of withstanding the effects of the following loads, based on testing according to ASTM E 1592:

1. Wind Loads: As indicated on Structural Drawings.

2. Deflection Limits: For wind loads, no greater than 1/180 of the span.

C. Air Infiltration: Air leakage of not more than 0.06 cfm/sq. ft. when tested according to ASTM E 1680 at the following test-pressure difference:

1. Test-Pressure Difference: 6.24 lbf/sq. ft.

D. Water Penetration under Static Pressure: No water penetration when tested according to ASTM E 1646 at the following test-pressure difference:

1. Test-Pressure Difference: 2.86 lbf/sq. ft.

E. Hydrostatic-Head Resistance: No water penetration when tested according to ASTM E 2140.

F. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface tem-peratures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces.

2.02 STANDING-SEAM METAL ROOF PANELS

A. General: Provide factory-formed metal roof panels designed to be installed by lapping and in-terconnecting raised side edges of adjacent panels with joint type indicated and mechanically at-taching panels to supports using concealed clips in side laps. Include clips, cleats, pressure plates, and accessories required for weathertight installation.

1. Aluminum Panel Systems: Unless more stringent requirements are indicated, comply with ASTM E 1637.

B. Integral-Standing-Seam Metal Roof Panels: Formed with integral ribs at panel edges and a flat pan between ribs; designed for sequential installation by mechanically attaching panels to sup-ports using concealed clips located under one side of panels and lapping and interconnecting side edges of adjacent panels.

1. Manufacturers: Provide products by the following:



2. Basis-of-Design Product: Subject to compliance with requirements, provide Peterson Alu-minum Corporation Pac-Clad Tite-Loc Plus Panel or equal.

3. Aluminum Sheet: Coil-coated sheet, ASTM B 209, alloy as standard with manufacturer, with temper as required to suit forming operations and structural performance required. a. Thickness: .040-inch. b. Surface: Smooth, flat finish. c. Exterior Finish: Two-coat fluoropolymer. d. Color: As selected by Engineer from manufacturer's full range.

4. Clips: Two-piece floating to accommodate thermal movement. a. Material: 0.062-inch-thick, stainless-steel sheet.

5. Panel Coverage: 18 inches.

6. Panel Height: 2.0 inches.

2.03 UNDERLAYMENT MATERIALS

A. Self-Adhering, High-Temperature Underlayment: Provide self-adhering, cold-applied, sheet un-derlayment, a minimum of 30 mils thick, consisting of slip-resistant, polyethylene-film top sur-face laminated to a layer of butyl or SBS-modified asphalt adhesive, with release-paper back-ing. Provide primer when recommended by underlayment manufacturer.

1. Thermal Stability: Stable after testing at 240 deg F; ASTM D 1970.

2. Low-Temperature Flexibility: Passes after testing at minus 20 deg F; ASTM D 1970.

3. Products: Provide one of the following: a. Grace Construction Products, a unit of W. R. Grace & Co.; Grace Ice and Water

Shield Ultra. b. Metal-Fab Manufacturing, LLC; MetShield. c. Owens Corning; WeatherLock Metal High Temperature Underlayment. d. Or equal.

2.04 MISCELLANEOUS MATERIALS

A. Panel Accessories: Provide components required for a complete, weathertight panel system in-cluding trim, copings, fascia, mullions, sills, corner units, clips, flashings, sealants, gaskets, fill-ers, closure strips, and similar items. Match material and finish of metal panels unless otherwise indicated.

1. Closures: Provide closures at eaves and ridges, fabricated of same metal as metal panels.

2. Backing Plates: Provide metal backing plates at panel end splices, fabricated from material recommended by manufacturer.

3. Closure Strips: Closed-cell, expanded, cellular, rubber or crosslinked, polyolefin-foam or closed-cell laminated polyethylene; minimum 1-inch-thick, flexible closure strips; cut or premolded to match metal panel profile. Provide closure strips where indicated or neces-sary to ensure weathertight construction.



B. Flashing and Trim: Provide flashing and trim formed from same material as metal panels as re-quired to seal against weather and to provide finished appearance. Locations include, but are not limited to, eaves, rakes, corners, bases, framed openings, ridges, fasciae, and fillers. Finish flashing and trim with same finish system as adjacent metal panels.

C. Gutters: Formed from same material as roof panels, complete with end pieces, outlet tubes, and other special pieces as required. Fabricate in minimum 96-inch-long sections, of size and metal thickness according to SMACNA's "Architectural Sheet Metal Manual." Furnish gutter supports spaced a maximum of 36 inches o.c., fabricated from same metal as gutters. Provide wire ball strainers of compatible metal at outlets. Finish gutters to match roof fascia and rake trim.

D. Downspouts: Formed from same material as roof panels. Fabricate in 10-foot-long sections, complete with formed elbows and offsets, of size and metal thickness according to SMACNA's "Architectural Sheet Metal Manual." Finish downspouts to match adjacent building wall color.

E. Roof Curbs: Fabricated from same material as roof panels, 0.048-inch nominal thickness; with bottom of skirt profiled to match roof panel profiles and with welded top box and integral full-length cricket. Fabricate curb subframing of 0.060-inch-nominal thickness, angle-, C-, or Z-shaped steel sheet. Fabricate curb and subframing to withstand indicated loads of size and height indicated. Finish roof curbs to match metal roof panels.

1. Insulate roof curb with 1-inch-thick, rigid insulation.

F. Panel Fasteners: Self-tapping screws designed to withstand design loads.

G. Panel Sealants: Provide sealant type recommended by manufacturer that are compatible with panel materials, are nonstaining, and do not damage panel finish.

1. Sealant Tape: Pressure-sensitive, 100 percent solids, gray polyisobutylene compound seal-ant tape with release-paper backing. Provide permanently elastic, nonsag, nontoxic, non-staining tape 1/2 inch wide and 1/8 inch thick.

2.05 FABRICATION

A. General: Fabricate and finish metal panels and accessories at the factory, by manufacturer's standard procedures and processes, as necessary to fulfill indicated performance requirements demonstrated by laboratory testing. Comply with indicated profiles and with dimensional and structural requirements.

B. On-Site Fabrication: Subject to compliance with requirements of this Section, metal panels may be fabricated on-site using UL-certified, portable roll-forming equipment if panels are of same profile and warranted by manufacturer to be equal to factory-formed panels. Fabricate accord-ing to equipment manufacturer's written instructions and to comply with details shown.

C. Provide panel profile, including major ribs and intermediate stiffening ribs, if any, for full length of panel.

D. Fabricate metal panel joints with factory-installed captive gaskets or separator strips that pro-vide a weathertight seal and prevent metal-to-metal contact, and that minimize noise from movements.



E. Sheet Metal Flashing and Trim: Fabricate flashing and trim to comply with manufacturer's rec-ommendations and recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of item indicated.

1. Form exposed sheet metal accessories that are without excessive oil canning, buckling, and tool marks and that are true to line and levels indicated, with exposed edges folded back to form hems.

2. Seams for Aluminum: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with epoxy seam sealer. Rivet joints for additional strength.

3. Sealed Joints: Form nonexpansion, but movable, joints in metal to accommodate sealant and to comply with SMACNA standards.

4. Conceal fasteners and expansion provisions where possible. Exposed fasteners are not al-lowed on faces of accessories exposed to view.

5. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal recommended in writing by metal panel manufactur-er. a. Size: As recommended by SMACNA's "Architectural Sheet Metal Manual" or metal

panel manufacturer for application, but not less than thickness of metal being secured.

2.06 FINISHES

A. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strip-pable, temporary protective covering before shipping.

B. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are ac-ceptable if they are within one-half of the range of approved Samples. Noticeable variations in same piece are unacceptable. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize con-trast.

C. Aluminum Panels and Accessories:

1. Two-Coat Fluoropolymer: AAMA 620. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in color coat. Prepare, pretreat, and apply coating to ex-posed metal surfaces to comply with coating and resin manufacturers' written instructions.

PART 3 EXECUTION

3.01 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with require-ments for installation tolerances, metal panel supports, and other conditions affecting perfor-mance of the Work.

1. Examine primary and secondary roof framing to verify that rafters, purlins, angles, chan-nels, and other structural panel support members and anchorages have been installed within alignment tolerances required by metal roof panel manufacturer.



2. Examine solid roof sheathing to verify that sheathing joints are supported by framing or blocking and that installation is within flatness tolerances required by metal roof panel manufacturer. a. Verify that air- or water-resistive barriers have been installed over sheathing or back-

ing substrate to prevent air infiltration or water penetration.

B. Examine roughing-in for components and systems penetrating metal panels to verify actual lo-cations of penetrations relative to seam locations of metal panels before installation.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION

A. Miscellaneous Supports: Install subframing, furring, and other miscellaneous panel support members and anchorages according to ASTM C 754 and metal panel manufacturer's written recommendations.

3.03 UNDERLAYMENT INSTALLATION

A. Self-Adhering Sheet Underlayment: Apply primer if required by manufacturer. Comply with temperature restrictions of underlayment manufacturer for installation. Apply at locations indi-cated below, wrinkle free, in shingle fashion to shed water, and with end laps of not less than 6 inches staggered 24 inches between courses. Overlap side edges not less than 3-1/2 inches. Roll laps with roller. Cover underlayment within 14 days.

1. Apply over the entire roof surface.

3.04 METAL PANEL INSTALLATION

A. General: Install metal panels according to manufacturer's written instructions in orientation, siz-es, and locations indicated. Install panels perpendicular to supports unless otherwise indicated. Anchor metal panels and other components of the Work securely in place, with provisions for thermal and structural movement.

1. Shim or otherwise plumb substrates receiving metal panels.

2. Flash and seal metal panels at perimeter of all openings. Fasten with self-tapping screws. Do not begin installation until air- or water-resistive barriers and flashings that will be con-cealed by metal panels are installed.

3. Install screw fasteners in predrilled holes.

4. Locate and space fastenings in uniform vertical and horizontal alignment.

5. Install flashing and trim as metal panel work proceeds.

6. Locate panel splices over, but not attached to, structural supports. Stagger panel splices and end laps to avoid a four-panel lap splice condition.

7. Align bottoms of metal panels and fasten with blind rivets, bolts, or self-tapping screws. Fasten flashings and trim around openings and similar elements with self-tapping screws.



8. Provide weathertight escutcheons for pipe- and conduit-penetrating panels.

B. Fasteners:

1. Steel Panels: Use stainless-steel fasteners for surfaces exposed to the exterior; use galva-nized-steel fasteners for surfaces exposed to the interior.

2. Aluminum Panels: Use aluminum or stainless-steel fasteners for surfaces exposed to the exterior; use aluminum or galvanized-steel fasteners for surfaces exposed to the interior.

3. Copper Panels: Use copper, stainless-steel, or hardware-bronze fasteners.

4. Stainless-Steel Panels: Use stainless-steel fasteners.

C. Anchor Clips: Anchor metal roof panels and other components of the Work securely in place, using manufacturer's approved fasteners according to manufacturers' written instructions.

D. Metal Protection: Where dissimilar metals contact each other or corrosive substrates, protect against galvanic action as recommended in writing by metal panel manufacturer.

E. Standing-Seam Metal Roof Panel Installation: Fasten metal roof panels to supports with con-cealed clips at each standing-seam joint at location, spacing, and with fasteners recommended in writing by manufacturer.

1. Install clips to supports with self-tapping fasteners.

2. Install pressure plates at locations indicated in manufacturer's written installation instruc-tions.

3. Seamed Joint: Crimp standing seams with manufacturer-approved, motorized seamer tool so clip, metal roof panel, and factory-applied sealant are completely engaged.

4. Watertight Installation: a. Apply a continuous ribbon of sealant or tape to seal joints of metal panels, using seal-

ant or tape as recommend in writing by manufacturer as needed to make panels water-tight.

b. Provide sealant or tape between panels and protruding equipment, vents, and accesso-ries.

c. At panel splices, nest panels with minimum 6-inch end lap, sealed with sealant and fastened together by interlocking clamping plates.

F. Accessory Installation: Install accessories with positive anchorage to building and weathertight mounting, and provide for thermal expansion. Coordinate installation with flashings and other components.

1. Install components required for a complete metal panel system including trim, copings, corners, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items. Provide types indicated by metal roof panel manufacturers; or, if not indicated, types rec-ommended by metal roof panel manufacturer.



G. Flashing and Trim: Comply with performance requirements, manufacturer's written installation instructions, and SMACNA's "Architectural Sheet Metal Manual." Provide concealed fasteners where possible, and set units true to line and level as indicated. Install work with laps, joints, and seams that will be permanently watertight and weather resistant.

1. Install exposed flashing and trim that is without buckling and tool marks, and that is true to line and levels indicated, with exposed edges folded back to form hems. Install sheet metal flashing and trim to fit substrates and achieve waterproof and weather-resistant perfor-mance.

2. Expansion Provisions: Provide for thermal expansion of exposed flashing and trim. Space movement joints at a maximum of 10 feet with no joints allowed within 24 inches of cor-ner or intersection. Where lapped expansion provisions cannot be used or would not be suf-ficiently weather resistant and waterproof, form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with mastic sealant (concealed within joints).

H. Gutters: Join sections with riveted and soldered or lapped and sealed joints. Attach gutters to eave with gutter hangers spaced not more than 36 inches o.c. using manufacturer's standard fas-teners. Provide end closures and seal watertight with sealant. Provide for thermal expansion.

I. Downspouts: Join sections with telescoping joints. Provide fasteners designed to hold down-spouts securely 1 inch away from walls; locate fasteners at top and bottom and at approximately 60 inches o.c. in between.

1. Provide elbows at base of downspouts to direct water away from building.

2. Connect downspouts to underground drainage system indicated.

J. Roof Curbs: Install flashing around bases where they meet metal roof panels.

K. Pipe Flashing: Form flashing around pipe penetration and metal roof panels. Fasten and seal to metal roof panels as recommended by manufacturer.

3.05 ERECTION TOLERANCES

A. Installation Tolerances: Shim and align metal panel units within installed tolerance of 1/4 inch in 20 feet on slope and location lines as indicated and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.

3.06 CLEANING AND PROTECTION

A. Remove temporary protective coverings and strippable films, if any, as metal panels are in-stalled, unless otherwise indicated in manufacturer's written installation instructions. On com-pletion of metal panel installation, clean finished surfaces as recommended by metal panel manufacturer. Maintain in a clean condition during construction.

B. Replace metal panels that have been damaged or have deteriorated beyond successful repair by finish touchup or similar minor repair procedures.

END OF SECTION


Public Transportation Facility (SBS) Modified Bituminous Membrane Roofing City of Key West, Florida 07520 - 1

SECTION 07520 STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE

ROOFING

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials, equipment and incidentals required and install styrene-butadiene-styrene (SBS) modified bituminous membrane roofing complete as shown on the drawings and as specified herein.

B. Section Includes:

1. Styrene-butadiene-styrene (SBS) modified bituminous membrane roofing.

2. Roof insulation.

1.02 SUBMITTALS

A. Product Data: For each type of product indicated.

B. LEED Submittals:

1. Product Test Reports for Credit SS 7.2: For roof materials, indicating that roof materials comply with Solar Reflectance Index requirement.

2. Product Data for Credit IEQ 4.1: For adhesives and sealants used inside the weatherproofing system, documentation including printed statement of VOC content.

3. Laboratory Test Reports for Credit IEQ 4: For adhesives and sealants used inside the weatherproofing system, documentation indicating that they comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."

C. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work.

1. Base flashings and membrane terminations.

2. Tapered insulation, including slopes.

3. Crickets, saddles, and tapered edge strips, including slopes.

4. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.

D. Qualification Data: For qualified Installer and Manufacturer].

E. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article.



1. Submit evidence of complying with performance requirements.

F. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and witnessed by a qualified testing agency, for components of membrane roofing system.

G. Research/Evaluation Reports: For components of membrane roofing system, from the ICC-ES.

H. Warranties: Sample of special warranties.

I. Maintenance Data: For roofing system to include in maintenance manuals.

1.03 REFERENCES

A. American Iron and Steel Institute

1. North American Specification for the Design of Cold-Formed Steel Structural Members.

B. American Welding Society

1. AWS D1.3 - Structural Welding Code - Sheet Steel

C. ASTM International

1. ASTM A 653/A 653M - Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

2. ASTM A 780 - Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

3. ASTM A 792/A 792M - Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process

4. ASTM A 1008/A 1008M - Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

5. ASTM C 423 - Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

6. ASTM E 119 - Test Methods for Fire Tests of Building Construction and Materials

7. ASTM E 329 - Specification for Agencies Engaged in Construction Inspection and/or Testing

D. SSPC: The Society for Protective Coatings

1. SSPC-Paint 20 - Paint Specification No. 20: Zinc-Rich Coating (Type I, "Inorganic," and Type II, "Organic")

E. Steel Deck Institute



1. SDI Publication No. 31 - Design Manual for Composite Decks, Form Decks, and Roof Decks

F. Underwriters Laboratories Inc.

1. UL 209 - Cellular Metal Floor Raceways and Fittings (ANSI)

2. Electrical Construction Equipment Directory.

G. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. General Performance: Installed membrane roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Membrane roofing and base flashings shall remain watertight.

B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by membrane roofing manufacturer based on testing and field experience.

C. Roofing System Design: Provide membrane roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE/SEI 7.

1. Uplift Pressures: See Structural Drawings.

D. Solar Reflectance Index: Not less than 89 when calculated according to ASTM E 1980 based on testing identical products by a qualified testing agency.

E. Energy Performance: Provide roofing system that is listed on DOE's ENERGY STAR "Roof Products Qualified Product List" for low-slope roof products.

F. Energy Performance: Provide roofing system with initial Solar Reflectance not less than 0.70 and Thermal Emittance not less than 0.75 when tested according to Cool Roof Rating Council's CRRC-1.


A. Manufacturer Qualifications: A qualified manufacturer that is UL listed for membrane roofing system identical to that used for this Project.

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by membrane roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

C. Source Limitations: Obtain components including roof insulation and fasteners for membrane roofing system approved by membrane roofing manufacturer.




A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

D. Handle and store roofing materials and place equipment in a manner to avoid permanent deflection of deck.


A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

1.08 WARRANTY

A. Special Warranty: Manufacturer's standard or customized form, without monetary limitation, in which manufacturer agrees to repair or replace components of membrane roofing system that fail in materials or workmanship within specified warranty period.

1. Warranty Period: 20 years from date of Substantial Completion.

B. Special Project Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by Installer, covering the Work of this Section, including all components of membrane roofing system such as membrane roofing, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarders, and walkway products, for the following warranty period:

1. Warranty Period: Two years from date of Substantial Completion.

PART 2 PRODUCTS

2.01 SBS-MODIFIED ASPHALT-SHEET MATERIALS

A. SBS-Modified Bituminous Membrane Roofing:

1. Manufacturers: Provide products by one of the following: a. Firestone Building Products. b. Or equal.



B. Granule-Surface Roofing Membrane Cap Sheet: ASTM D 6163, Grade G, Type I or II, SBS-modified asphalt sheet reinforced with glass fibers; granular surfaced; suitable for application method specified, and as follows:

1. Granule Color: UltraWhite.

2.02 BASE-SHEET MATERIALS

A. Base Sheet: ASTM D 4601, Type II, SBS-modified, asphalt-impregnated and -coated sheet, with glass-fiber-reinforcing mat, dusted with fine mineral surfacing on both sides.

1. Weight: 60 lb/100 sq. ft, minimum.

2.03 BASE FLASHING SHEET MATERIALS

A. Backer Sheet: ASTM D 4601, Type I, asphalt-impregnated and -coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides.

B. Backer Sheet: ASTM D 6163, Grade S, Type I or II, SBS-modified asphalt sheet (reinforced with glass fibers; smooth surfaced; suitable for application method specified.

C. Granule-Surfaced Flashing Sheet: ASTM D 6163, Grade G, Type I or II, SBS-modified asphalt sheet (reinforced with glass fibers; granular surfaced; suitable for application method specified, and as follows:


2.04 AUXILIARY ROOFING MEMBRANE MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with roofing membrane.

1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

2. Adhesives and sealants that are not on the exterior side of weather barrier shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24): a. Plastic Foam Adhesives: 50 g/L. b. Gypsum Board and Panel Adhesives: 50 g/L. c. Multipurpose Construction Adhesives: 70 g/L. d. Fiberglass Adhesives: 80 g/L. e. Contact Adhesive: 80 g/L. f. Other Adhesives: 250 g/L. g. Nonmembrane Roof Sealants: 300 g/L. h. Sealant Primers for Nonporous Substrates: 250 g/L. i. Sealant Primers for Porous Substrates: 775 g/L.

3. Adhesives and sealants that are not on the exterior side of weather barrier shall comply with the testing and product requirements of the California Department of Health Services'



"Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."

B. Asphalt Primer: ASTM D 41.

C. Roofing Asphalt: ASTM D 312, Type III as recommended by roofing system manufacturer for application].

D. Roofing Asphalt: ASTM D 6152, SEBS modified.

E. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required by roofing system manufacturer for application.

F. Mastic Sealant: Polyisobutylene, plain or modified bitumen; nonhardening, nonmigrating, nonskinning, and nondrying.

G. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roofing membrane components to substrate; tested by manufacturer for required pullout strength, and acceptable to roofing system manufacturer.

H. Metal Flashing Sheet: As specified in Section 07620.

I. Roofing Granules: Ceramic-coated roofing granules, No. 11 screen size with 100 percent passing No. 8 sieve and 98 percent of mass retained on No. 40 sieve, color to match roofing membrane.

J. Aggregate Surfacing: ASTM D 1863, No. 6 or No. 67, clean, dry, opaque, water-worn gravel or crushed stone, free of sharp edges.

K. Miscellaneous Accessories: Provide those recommended by roofing system manufacturer.

2.05 ROOF INSULATION

A. General: Preformed roof insulation boards manufactured by roofing manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses indicated.

B. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, glass-fiber mat facer on both major surfaces.

C. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches unless otherwise indicated.

D. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated.

2.06 INSULATION ACCESSORIES

A. General: Furnish roof insulation accessories recommended by insulation manufacturer for intended use and compatibility with membrane roofing.



B. Modified Asphaltic Insulation Adhesive: Insulation manufacturer's recommended modified asphaltic, asbestos-free, cold-applied adhesive formulated to attach roof insulation to substrate or to another insulation layer.

C. Insulation Cant Strips: ASTM C 728, perlite insulation board.

D. Insulation Cant Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.

E. Wood Nailer Strips: Comply with requirements in Section 06100.

F. Tapered Edge Strips: ASTM C 728, perlite insulation board.

G. Tapered Edge Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board.

H. Cover Board: ASTM C 208, Type II, Grade 2, cellulosic-fiber insulation board, 1/2 inch thick.

I. Cover Board: ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum substrate, 1/2 inch thick, factory primed.

1. Products: provide one of the following: a. Firestone IsoGard HD b. Georgia-Pacific Corporation; Dens Deck Prime. c. Or equal.

2.07 WALKWAYS

A. Walkway Cap Sheet Strips: ASTM D 6163, Grade G, Type I or II, SBS-modified asphalt sheet reinforced with glass fibers; granular surfaced; suitable for application method specified, and as follows:


PART 3 EXECUTION

3.01 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following requirements and other conditions affecting performance of roofing system:

1. Verify that roof openings and penetrations are in place and curbs are set and braced and that roof drain bodies are securely clamped in place.

2. Verify that wood cants, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations and that nailers match thicknesses of insulation.

3. Verify that minimum concrete drying period recommended by roofing system manufacturer has passed.

4. Verify that concrete substrate is visibly dry and free of moisture. Test for capillary moisture by plastic sheet method according to ASTM D 4263.



a. Test for moisture by pouring 1 pint of hot roofing asphalt on deck at start of each day's work and at start of each roof area or plane. Do not proceed with roofing work if test sample foams or can be easily and cleanly stripped after cooling.

5. Verify that concrete-curing compounds that will impair adhesion of roofing components to roof deck have been removed.

6. Verify that deck is securely fastened with no projecting fasteners and with no adjacent units in excess of 1/16 inch out of plane relative to adjoining deck.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION

A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections.

B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast.

C. Prime surface of concrete deck with asphalt primer at a rate of 3/4 gal./100 sq. ft. (0.3 L/sq. m) and allow primer to dry.

D. Install insulation strips in ribs of acoustical roof decks according to acoustical roof deck manufacturer's written instructions.

3.03 INSULATION INSTALLATION

A. Comply with roofing system manufacturer's written instructions for installing roof insulation.

B. Install one lapped base-sheet course and mechanically fasten to substrate according to roofing system manufacturer's written instructions.

C. Nailer Strips: Mechanically fasten 4-inch nominal width wood nailer strips of same thickness as insulation perpendicular to sloped roof deck at the following spacing:

D. Insulation Cant Strips: Install and secure preformed 45-degree insulation cant strips at junctures of roofing membrane system with vertical surfaces or angle changes more than 45 degrees.

E. Install tapered insulation under area of roofing to conform to slopes indicated.

F. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between rows, abutting edges and ends between boards. Fill gaps exceeding 1/4 inch with insulation.

1. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

G. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is 2.7 inches or more, install two or more layers with joints of each succeeding layer staggered from joints of previous layer a minimum of 6 inches in each direction.



1. Where installing composite and noncomposite insulation in two or more layers, install noncomposite board insulation for bottom layer and intermediate layers, if applicable, and install composite board insulation for top layer.

H. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water.

I. Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.

J. Adhered Insulation: Install each layer of insulation and adhere to substrate as follows:

1. Prime surface of concrete deck with asphalt primer at rate of 3/4 gal./100 sq. ft. and allow primer to dry.

2. Set each layer of insulation in a solid mopping of hot roofing asphalt applied within plus or minus 25 deg F of equiviscous temperature.

K. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered between rows. Offset joints a minimum of 6 inches in each direction from joints of insulation below.

1. Fasten cover boards to resist uplift pressure at corners, perimeter, and field of roof.

2. Apply hot roofing asphalt to underside, and immediately bond cover board to substrate.

3.04 ROOFING MEMBRANE INSTALLATION, GENERAL

A. Install roofing membrane system according to roofing system manufacturer's written instructions and applicable recommendations in ARMA/NRCA's "Quality Control Guidelines for the Application of Polymer Modified Bitumen Roofing" and as follows:

1. Deck Type C concrete.

2. Adhering Method: M (mopped).

3. Base Sheet: One.

4. Number of Glass-Fiber Base-Ply Sheets: One.

5. Surfacing Type: M (mineral-granule-surfaced cap sheet).

B. Start installation of roofing membrane in presence of roofing system manufacturer's technical personnel.

C. Cooperate with testing agencies engaged or required to perform services for installing roofing system.

D. Coordinate installation of roofing system so insulation and other components of the roofing membrane system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast.



1. At end of each day's work, provide tie-offs to cover exposed roofing membrane sheets and insulation with a course of coated felt set in roofing cement or hot roofing asphalt, with joints and edges sealed.

2. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system.

3. Remove and discard temporary seals before beginning work on adjoining roofing.

E. Asphalt Heating: Do not raise roofing asphalt temperature above equiviscous temperature range more than one hour before time of application. Do not exceed roofing asphalt manufacturer's recommended temperature limits during roofing asphalt heating. Do not heat roofing asphalt within 25 deg F of flash point. Discard roofing asphalt maintained at a temperature exceeding finished blowing temperature for more than four hours.

F. Asphalt Heating: Heat and apply SEBS-modified roofing asphalt according to roofing system manufacturer's written instructions.

G. Substrate-Joint Penetrations: Prevent roofing asphalt and adhesives from penetrating substrate joints, entering building, or damaging roofing system components or adjacent building construction.

3.05 BASE-SHEET INSTALLATION

A. Loosely lay one course of sheathing paper, lapping edges and ends a minimum of 2 inches and 6 inches, respectively.

B. Install lapped base-sheet course, extending sheet over and terminating beyond cants. Attach base sheet as follows:

1. Adhere to substrate in a solid mopping of hot roofing asphalt.

3.06 BASE-PLY SHEET INSTALLATION

A. Install glass-fiber base-ply sheets according to roofing system manufacturer's written instructions starting at low point of roofing system. Align glass-fiber base-ply sheets without stretching. Extend sheets over and terminate beyond cants.

1. Shingle side laps of glass-fiber base-ply sheets uniformly to ensure that required number of glass-fiber base-ply sheets covers substrate at any point. Shingle in direction to shed water.

2. Embed each glass-fiber base-ply sheet in a continuous void-free mopping of hot roofing asphalt to form a uniform membrane without glass-fiber base-ply sheets touching.

3.07 SBS-MODIFIED BITUMINOUS MEMBRANE INSTALLATION

A. Install modified bituminous roofing membrane sheet and cap sheet according to roofing manufacturer's written instructions, starting at low point of roofing system. Extend roofing membrane sheets over and terminate beyond cants, installing as follows:



1. Adhere to substrate in a solid mopping of hot roofing asphalt applied at not less than 425 deg F.

2. Unroll roofing membrane sheets and allow them to relax for minimum time period required by manufacturer.

B. Laps: Accurately align roofing membrane sheets, without stretching, and maintain uniform side and end laps. Stagger end laps. Completely bond and seal laps, leaving no voids.

1. Repair tears and voids in laps and lapped seams not completely sealed.

2. Apply roofing granules to cover exuded bead at laps while bead is hot.

C. Install roofing membrane sheets so side and end laps shed water.

3.08 FLASHING AND STRIPPING INSTALLATION

A. Install base flashing over cant strips and other sloped and vertical surfaces, at roof edges, and at penetrations through roof; secure to substrates according to roofing system manufacturer's written instructions, and as follows:

1. Prime substrates with asphalt primer if required by roofing system manufacturer.

2. Backer Sheet Application: Adhere backer sheet to substrate in a solid mopping of hot roofing asphalt.

3. Flashing Sheet Application: Adhere flashing sheet to substrate in a solid mopping of hot roofing asphalt applied at not less than 425 deg F . Apply hot roofing asphalt to back of flashing sheet if recommended by roofing system manufacturer.

4. Flashing Sheet Application: Torch apply flashing sheet to substrate.

B. Extend base flashing up walls or parapets a minimum of 8 inches above roofing membrane and 4 inches onto field of roofing membrane.

C. Install roofing membrane cap-sheet stripping where metal flanges and edgings are set on membrane roofing according to roofing system manufacturer's written instructions.

3.09 WALKWAY INSTALLATION

A. Walkway Pads: Install walkway pads using units of size indicated or, if not indicated, of manufacturer's standard size according to walkway pad manufacturer's written instructions.

1. Set walkway pads in additional pour coat of hot roofing asphalt after aggregate surfacing of modified bituminous roofing membrane.

B. Walkway Cap Sheet Strips: Install walkway cap sheet strips over roofing membrane using same application method as used for roofing membrane cap sheet.



3.10 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period. When remaining construction will not affect or endanger roofing, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copies to Engineer and Owner.

B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION


City of Key West, Florida Grinder Pump Station Public Transportation Facility 11302-1

SECTION 11302 GRINDER PUMP STATION

PART 1 – GENERAL 1.01 SCOPE OF WORK

A. Furnish all labor, equipment and incidentals required and install, place in operation, and field test grinder pumps and motors as hereinafter specified.

B. These Specifications are intended to give a general description of what is required but do not cover all details which will vary in accordance with the requirements of the equipment application. It is, however, intended to cover the furnishings, the shop testing, the delivery and complete installation and field testing of all materials, equipment and appurtenances for the complete pumping units as herein specified whether specifically mentioned in these Specifications or not.

C. For all units there shall be furnished and installed all the necessary and desirable accessory equipment and auxiliaries whether specifically mentioned in these Specifications or not as required for an installation incorporating the highest standards for this type of service.

1.02 RELATED WORK

A. Electrical work is included in Division 16.

B. Site work is described in Division 2.

C. Mechanical piping, valves, and supports are included in respective sections of Division 15.

1.03 DESCRIPTION OF SYSTEMS

A. One duplex grinder pump station shall be required for this Contract. The pumps will be of the submersible grinder type. The pump station shall be located and arranged as shown on the Drawings.

B. The pump station shall be comprised of a fiberglass wet well, two submersible wastewater pumps, and controls, and discharge piping and all appurtenances as specified herein and shown on the Drawings. The pump station will pump raw, unscreened, domestic wastewater into a force main.

C. The pumps will take suction from the new grinder pump basin with water level variation and pump level settings as shown on the Drawings.

D. The pumps shall be capable of handling raw, unscreened sewage. The pumps shall have a discharge connection which will allow the removal of the pumps from the basin without the need for personnel to enter the basin.

E. All of the pumps and motors shall be by one Manufacturer. All working parts of the identical pumps and motors, such as bearings, wearing rings, shafts, sleeves, motors, etc., shall be of standard dimension built to limit gauges or formed to templates such that parts will be interchangeable between like units and such that OWNER may at any time in the



future obtain replacement and repair parts for those furnished in the original machines. All parts shall be properly stamped for identification and location in the machines as shown on the Operation and Maintenance Manuals furnished.

F. The grinder pumps shall be installed as shown on the Drawings. The layout of the pumps has been made using the arrangement and dimensions recommended by one Manufacturer. The selection of the equipment is not limited to the product of one Manufacturer. If the equipment provided requires an arrangement of dimensions different from those indicated on the Drawings, the equipment supplier shall prepare and submit Drawings showing all necessary changes to ENGINEER for review. Such changes, including work, accessories, controls, etc. to accommodate the equipment, shall be made with no additional cost to OWNER. The arrangement and dimensions of the equipment provided shall be in accordance with Manufacturer’s recommendations.

1.04 QUALIFICATIONS

A. To assure unity of responsibility, the pump Manufacturer shall be responsible for the entire pumping system including wet wells, pumps, motors, guide rails and electrical controls as specified.

B. The pumps covered by these Specifications are intended to be standard pumping equipment of proven ability as manufactured by a reputable Manufacturer having long experience in the production of such pumps.

C. The pumps furnished shall be designed, constructed and installed in accordance with the

best practice and methods, and shall operate satisfactorily when installed. Pumps shall be manufactured in accordance with the Hydraulic Institute Standards.

D. All equipment furnished under this Specification shall be new and unused and shall be the standard product of Manufacturers having a successful record of manufacturing and servicing the equipment and systems specified herein in a minimum of five (5) years.

1.05 SUBMITTALS

A. Copies of all materials required to establish compliance with the specifications shall be submitted in accordance with the provisions of the General Conditions and Section 01300 of these Specifications. Submittals shall include at least the following: 1. Certified shop and erection drawings showing all important details of

construction, dimensions and anchor bolt locations.

2. Descriptive literature, bulletins, and/or catalogs of the equipment.

3. Data on the characteristics and performance of each pump. Data shall include guaranteed performance curves, based on actual shop tests of similar units, which show that they meet the specified requirements for head, capacity, efficiency, NPSHR, and horsepower. Curves shall be submitted on 8½ inch by 11 inch sheets, at as large a scale as is practical. Curves shall be plotted from no flow at shut off head to pump capacity at minimum specified total head. Catalog sheets showing a family of curves will not be acceptable.



4. A complete total bill of materials of all equipment including the weights of equipment furnished.

5. A list of Manufacturer's recommended spare parts to be supplied in addition to those specified in paragraph 1.07, with Manufacturer's current price for each item. Include gaskets, packing, etc. on the list. List bearings by the bearing Manufacturer's numbers only.

6. Complete motor data.

7. Copies of all factory test results, as specified in PART 2 - PRODUCTS of this Section of the Specifications.

B. In the event that it is impossible to conform with certain details of the specifications due

to different manufacturing techniques, describe completely all nonconforming aspects. C. Upon receipt and review of submitted material, provide the required number of certified

prints and one reproducible tracing of all Drawings as specified in Section 01300 1.06 OPERATING INSTRUCTIONS

A. Operating and maintenance manuals shall be furnished. The manuals shall be prepared specifically for this installation and shall include all required cuts, drawings, equipment lists, descriptions, etc. that are required to instruct operation and maintenance personnel unfamiliar with such equipment. The number and special requirements shall be as specified in Section 01730.

B. A factory representative of all major component Manufacturers, who has complete knowledge of proper operation and maintenance, shall be provided for one (1) day for testing of pump units and controls and to instruct representatives of OWNER and ENGINEER on proper operation and maintenance. With OWNER's permission, this work may be conducted in conjunction with the inspection of the installation and test run as provided under PART 3. If there are difficulties in operation of the equipment due to Manufacturer's design or fabrication, additional service shall be provided at no cost to OWNER.

1.07 PRODUCT HANDLING

A. All parts shall be properly protected so that no damage or deterioration will occur during a prolonged delay from the time of shipment until installation is completed and the units and equipment are ready for operation.

B. All equipment and parts must be properly protected against any damage during a prolonged period at the site.

C. Factory assembled parts and components shall not be dismantled for shipment unless permission is received in writing from ENGINEER.

D. The finished surfaces of all exposed flanges shall be protected by wooden blind flanges,

strongly built and securely bolted thereto.



E. Finished iron or steel surfaces not painted shall be properly protected to prevent rust and corrosion.

F. After hydrostatic or other tests, all entrapped water shall be drained prior to shipment,

and proper care shall be taken to protect parts from the entrance of water during shipment, storage and handling.

G. Each box or package shall be properly marked to show its net weight in addition to its contents.

1.08 WARRANTY

A. All equipment supplied under this section shall be warranted for a period of one (1) year by CONTRACTOR and the equipment Manufacturers. Warranty period shall commence on the date of OWNER acceptance, as outlined in Division 1.

B. The equipment shall be warranted to be free from defects in workmanship, design and materials. If any part of the equipment should fail during the warranty period, it shall be replaced in the machine(s) and the unit(s) restored to service at no expense to OWNER.

C. Manufacturer’s warranty period shall run concurrently with CONTRACTOR's warranty period. No exception to the provision shall be allowed.

D. Refer to Section 01740 for additional warranty requirements. PART 2 – PRODUCTS 2.01 GENERAL

A. The pumping units required under this section shall be complete including proper alignment and balancing of the individual units. All parts shall be so designed and proportioned as to have liberal strength, stability, and stiffness and to be especially adapted for the service to be performed. Ample room for inspection, repairs and adjustment shall be provided.

B. The discharge head for each pump shall be rigidly and accurately anchored into position. All necessary anchor bolts, nuts and washers shall be furnished by the pump Manufacturer for installation by CONTRACTOR. Anchor bolts, nuts and washers shall be type 304 stainless steel.

C. Stainless steel nameplates giving the name of Manufacturer, the rated capacity, head, speed and all other pertinent data shall be attached to each pump and motor.

D. Each pumping unit and its driving equipment shall be designed and constructed to withstand the maximum turbine runaway speed of the unit due to backflow through the pump with the maximum TDH specified available at the pump discharge connection.

E. The pumping units required under this section shall be complete including pumps and

motors with proper alignment and balancing of the individual units. All parts shall be so designed and proportioned as to have liberal strength, stability, and stiffness and to be especially adapted for the work to be done. Ample room shall be provided for inspection, repairs, and adjustments.



F. Each foundation plate for each pump shall be rigidly and accurately anchored into

position. All necessary foundation bolts, plates, nuts, and washers shall be furnished by the pump Manufacturer for installation by CONTRACTOR.

G. Stainless steel nameplates giving the name of Manufacturer, the rated capacity, head, speed, and all other pertinent data shall be attached to each pump and motor.

2.02 PUMPS

A. General:

1. The pumps shall be of the totally submersible grinder type designed to pump raw unscreened wastewater.

2. The pumps shall be standard dimensions such that parts will be interchangeable between like units and all units shall be supplied by the same Manufacturer.

3. The pumps shall be as manufactured by Ebara Fluid Handling, Hydromatic Pumps, Inc., ABS Pumps, Inc., ITT Flygt, Myers, or equal units meeting the detailed requirements of this Specification.

4. The pumping equipment Manufacturer shall be responsible for all patents or licenses that exist because of the equipment that may be provided.

5. Manufacturer shall assume all costs of patent fees or licenses for the equipment or process and shall safeguard and save harmless OWNER from all damages, judgments, claims and expenses arising from license fees, or claimed infringement of any letters, patent or patent rights or fees for the use of any equipment or process, structural feature or arrangement of any of the component parts of the installation, and the price bid shall be deemed to include payment of all such patent fees, licenses of other costs pertaining thereto.

B. Performance Requirements:

1. When operating at the design output speed, each pump shall have a characteristic

performance curve which meets all the minimum conditions listed in Table 11302-1. The pumps and drive motors shall be capable of operating satisfactorily under the full range of conditions as defined by Table 11302-1. The intermediate pump capacity, head and efficiency defined in Table 11302-1 shall be the "design point". Pump efficiency as defined herein takes into consideration all losses from the pump intake suction bell to the pump discharge connection.

2. There shall be no significant change in vibration and noise level over the entire listed range of flow for the pumping system.

3. Maximum motor speeds shall not exceed those listed in Table 11302-1 to satisfy the specified hydraulic duty requirements. The pump "design speeds" shall be the motor output speed when operating at the pump "intermediate" capacity and head.



4. With the pumping units operating at full motor speed, the maximum brake horsepower required by the pumps shall not exceed the maximum horsepower listed in Table 11302-1. If the pumping units require more than the maximum horsepower listed in Table 11302-1 at the motor output shaft at any full motor speed operation point between primary and secondary discharge head, they will be rejected.

5. Certified Factory Tests: a. Non-witnessed factory testing in accordance with the standards of the

Hydraulic Institute shall be required for all pumps. Certified performance curves shall be submitted, including head, capacity, brake horsepower, and pump efficiency for each pump supplied.

b. All pumps shall be tested through the specified range of flow, and head/ capacity/ efficiency curves plotted at maximum output speed. During each test, the pump shall be run at each head condition for sufficient time to accurately determine discharge, head, power input, and efficiency. If any pump tested fails to meet any specification requirement it will be modified until it meets all specification requirements.

C. Grinder Pump Construction:

1. The pump and motor housing shall be cast iron with all parts coated with a

sewage resistance coating. All exposed hardware shall be of type 300 stainless steel. All mating surfaces where watertight sealing is required shall be machined and fitted with gaskets.

2. The pump shall be of the centrifugal type with the rotating cutter mounted on the pump shaft directly against the impeller. The stationary cutter shall be mounted in an adjustable bottom plate. The bottom plate shall be cast with grooves threading outward from the center opening of the plate to the outer diameter for grit handling. The impeller shall be a vane centrifugal type. The cutter material shall be primarily type 440C stainless steel with the addition of cobalt, vanadium and molybdenum for abrasion resistance. The cutter shall have a Rockwell C hardness of 58 - 62.

3. The common pump and motor shaft shall be type 420 stainless steel supported by

a heavy duty double row ball bearing and an upper sealed single row ball bearing. The cutting element shall be designed to keep overhung load distance to a minimum. All fasteners shall be type 300 stainless steel.

4. Each pump shall be equipped with two seals. The lower shall be of the mechanical type with silicon carbide faces. The entire mechanical portion shall be enclosed in a Buna N boot to prevent solids from collecting in the mechanical portion. The seals shall require neither maintenance nor adjustment and shall be easily replaced.

5. The seals shall be separated by an oil chamber. An electronic probe shall be provided in the oil chamber to detect the leakage of water into the chamber.



6. The pump shall be removed from the basin by means of a 2-inch diameter type 304 stainless steel guide rail system and stainless steel cable. The removal shall be such that OWNER's personnel may remove the pump without draining or entering the basin. Each pump shall be supplied with a stainless steel lifting cable fastened to the pump and secured to the access cover. The cables shall be of a sufficient size to support the weight and force required to remove the pumps from the wet well.

7. Pump motors shall be explosion proof and shall be housed in a watertight casing and shall have Class F insulated windings which shall be moisture resistant. Motors shall be NEMA Design B rated 130o C maximum. Motors shall be equipped with a oil chamber moisture detector installed according to NEC standards. Motor characteristics are noted in Table 11302-1. Pump motors shall have cooling characteristics suitable to permit continuous operation in a totally, partially or non-submerged condition. Each motor shall incorporate an ambient temperature compensated overheat sensing device and moisture sending device. The protective devices shall be wired into the pump controls in such a way that it either device operates the pump will shut down. The devices shall be self-resetting. The cable shall be fixed to the pump using a watertight trumpet assembly. The pump shall be capable of running continuously in a totally dry condition under full load without damage for extended periods. Before final acceptance, a field running test demonstrating this ability with at least 2 hours of continuous operation under the above conditions shall be performed for all pumps being supplied, if required by OWNER. Pump motor cables shall be suitable for submersible pump applications and shall be properly sealed.

8. Each pumping unit and its driving equipment shall be designed and constructed to withstand the maximum turbine run-away speed of the unit due to back flow through the pump.

9. For Performance Requirements refer to Table 11302-1. 2.03 VALVES AND PIPING

A. A 3-inch flanged-end full body swing check valve rated for 200 psi shall be inserted in the discharge line of each pump near the wastewater force main as shown on the Drawings. The valves shall be as manufactured by Val-Matic or equal.

B. A 3-inch flanged-end eccentric plug valve shall be installed on the discharge line of each pump near the wastewater force main as shown on the Drawings. The valve body walls shall be corrosion resistant and meet ANSI 125 pound standard. The valve plug shall be made of bronze. The valve shall be actuated by a ¼ turn lever handle. The valve shall be manufactured by DeZurik Corp. or equal.

C. Additional valves located near the pump stations are specified in Section 02640.

D. Discharge piping shall be 2 inch diameter schedule 80 PVC, completely assembled to the pump guide rail assembly and terminating as shown on the Drawings with a threaded flange. The pipe shall have flange fitting for connections to valves and shall be solvent welded at fittings.

2.04 PUMPING STATION FIBERGLASS WET WELL



A. Wet wells shall be of one-piece, monolithic construction capable of withstanding live

loads of 250 pounds per square foot and earth loads based on 120 pounds per cubic foot unit weight of the soil. No vertical seams or joints shall be allowed.

B. Interior Surfacing Material: The inner surface exposed to the chemical environment shall be a resin-rich layer of 0.010 to 0.020 in. thick. The inner surface layer exposed to the corrosive environment shall be followed with a minimum of two passes of chopped roving of minimum length 0.5 in. to maximum length of 2.0 in. and shall be applied uniformly to an equivalent weight of 3 oz/ft2. Each pass of chopped roving shall be well-rolled prior to the application of additional reinforcement. The combined thickness of the inner surface and interior layer shall not be less than 0.10 in.

C. Wall Construction Procedure: After inner layer has been applied, the Fiberglass wet well

wall shall be constructed with chop and continuous strand filament wound manufacturing process for continuous reinforcement and uniform strength and composition. Seams shall be fiberglassed on the inside and the outside using the same glass-resin jointing procedure at the place of manufacture.

D. The wet well shall have flat top as indicated on the drawings. The entrance riser shall

have at least a 3-inch high reinforcement collar and a 4-inch min. width flat surface, at the top of the cast-in-place slab.

E. The pump Manufacturer shall furnish wet well access covers and frames as shown on the

plans. The cover shall be made of aluminum with ¼” diamond plate finish. The cover shall have a single leaf flush fitting access door which opens to 90 degrees and locks open. Hinges and all fastening hardware shall be stainless steel. The cover shall be capable of bearing a live load of 300-pounds per square foot. The access leaf shall be equipped with a padlock hasp.

F. The wetwell shall be furnished with a 3 inch diameter tank vent as shown on Drawings.

G. The fiberglass wet well shall be legibly waterproof marked with the name of the Manufacturer, the date of the wet well manufacture, and the mark number of the wet well on both the inside and outside of the wet well.

H. Fiberglass wet well shall be be anchored into a concrete base as shown on the plans and

shall have an antiflotation anchor ring or rings provided around the bottom of the fiberglass wall.

2.05 PUMP CONTROL SYSTEM

Pump control systems are specified in Division 16 ELECTRICAL. PART 3 – EXECUTION 3.01 INSTALLATION

A. Installation shall be in strict accordance with Manufacturer's instructions and recommendations in the locations shown on the Drawings. Installation shall include furnishing the required oil and grease for initial operation. The grades of oil and grease shall be in accordance with Manufacturer's recommendations. Anchor bolts shall be set in accordance with Manufacturer's recommendations.



3.02 SHOP PAINTING

A. Before exposure to weather and prior to shop painting, all surfaces shall be thoroughly cleaned, dry and free from all mill scale, rust, grease, dirt and other foreign matter.

B. All pumps and motors shall be shop coated with Manufacturer's standard coating.

C. All nameplates shall be properly protected during painting.

D. Gears, bearing surfaces, and other similar surfaces obviously not be painted shall be given a heavy shop coat of grease or other suitable rust-resistant coating. This coating shall be maintained as necessary to prevent corrosion during periods of storage and erection and shall be satisfactory to ENGINEER up to the time of the final acceptance test.

3.03 SERVICES

A. CONTRACTOR shall furnish the services of a Manufacturer's field service technician who has complete knowledge of proper operation and maintenance of the equipment for a period not less than two (2) days to inspect the installed equipment, supervise the initial test run, and to provide instruction to the plant personnel. The first day will be for checking and inspecting the equipment after it is installed. The second day will be to operate and supervise the initial field test.

B. At least one (1) of the two (2) days shall be allocated solely to the instruction of plant personnel in operation and maintenance of the equipment. This instruction period shall be scheduled at least ten (10) days in advance with OWNER and shall take place prior to plant start-up and acceptance by OWNER.

C. The final copies of operation and maintenance manuals specified in Section 01730 must have been delivered to ENGINEER prior to scheduling the instruction period with OWNER.

3.04 INSPECTION AND TESTING

A. General 1. The services of a factory representative shall be furnished for two (2) days and

shall have complete knowledge of proper operation and maintenance to inspect the final installation and supervise the test run of the equipment. With the permission of OWNER, these services may be combined with those provided under Paragraph 1.06, OPERATING INSTRUCTIONS.

2. Field tests shall not be conducted until such time that the entire installation is complete and ready for testing.

B. Pumps

1. After all pumps have been completely installed and working under the direction

of Manufacturer, conduct, in the presence of ENGINEER, such tests that are necessary to indicate that pumps conform to the Specifications. Field tests shall



include all pumps included under this Section. Test period will be for a minimum of two hours for each pump. Supply all electric power, water or wastewater, labor, equipment and incidentals required to complete the field tests.

2. If the pump performance does not meet the Specifications, corrective measures shall be taken or pumps shall be removed and replaced with pumps with satisfy the conditions specified. A 4-hour operating period of each pump will be required before acceptance. During this 4-hour operating period, CONTRACTOR shall supply all power necessary.

C. Motors:

1. CONTRACTOR shall check direction of rotation of all motors and reverse

connections if necessary.

D. Should any item of equipment fail to meet the Specifications, corrective measures shall be taken by CONTRACTOR or the item shall be removed and replaced with one which satisfies the conditions specified.

E. All pump operating settings, alarms and shutdown devices shall be calibrated and tested

during the field tests.

F. Deliver six (6) copies of certified test results to ENGINEER upon completion of satisfactory testing of the equipment.

3.05 SUBMITTALS

A. Manufacturer shall submit for approval pump curves and a pump data sheet indicating the principle operating characteristics of each pump prior to fabrication.

B. Manufacturer shall supply the following information at the time of shipment: 1. Pump outline drawing

2. Typical installation guides

3. Operation and maintenance instruction manuals

4. Parts lists

C. The guide rails shall be installed by the pump system Manufacturer.

D. All submittals shall be in accordance with Section 01300.

END OF SECTION



TABLE 11302-1

GRINDER PUMP DATA SHEET

1. Sewage Pumping Station

A. Location: Public Transportation Facility, City of Key West, Florida

B. Quantity: 1

C. Operating Conditions: 1. Material to be Pumped: Raw sewage within a temperature range of 40o F to 104o F

2. Pump Curve:

a. Sanitary Sewer Lift Station, Public Transportation Facility: Ebara: EBG-

103 Condition Discharge Rate TDH Minimum Shut off 0 gpm 130 feet Minimum Discharge 60 gpm 110 feet Design Discharge 110 gpm 100 feet Maximum Discharge 160 gpm 60 feet

3. Pump Speed: 3,450 + RPM

D. Specifications: 1. Type: Submersible grinder type

2. Minimum Solids Capacity: N/A

3. Discharge Size: 3 inches

4. Motor Data: Key West Transit Facility Lift Station

Minimum Shaft Horsepower: 10 Speed: 3,450 rpm Volts: ELECTRICAL TO IDENTIFY Phases: 3 Hertz: 60 Minimum Pump Efficiency: 83 percent NEMA Type Motor Design: B

END OF SECTION


SECTION 15600 FUEL SYSTEM

PART 1 GENERAL 1.01 SCOPE OF WORK

A. The work of this section includes all labor, materials and equipment required for the installation and testing of the fuel piping systems complete and ready for operation.

1. The system will include a complete fuel piping system for the existing bulk fuel storage

tank and new packaged generator with sub-base fuel tank, fuel storage tank monitoring systems, and all accessories as indicated for the existing tank and fuel piping system. The system will convey diesel fuel between the generator sub-base fuel tank and the existing bulk fuel storage tank. The fuel system and all appurtenances shall be furnished and installed under this section by the generator supplier.

2. The existing bulk storage tank shall be relocated to accommodate the new generator with sub-base storage tank. Contractor shall coordinate relocation of the tank with the tank manufacturer. Manufacturer’s representative shall inspect and test the tank after relocation, and provide certification that tank is undamaged and in good working order.

1.02 RELATED WORK

A. Related work specified in other sections:

1. Section 16216 Diesel Engine Driven Generator

2. Concrete work is shown on the Structural Drawings.

3. Electrical work, except as otherwise specified herein, is included in Division 16. 1.03 REQUIREMENTS OF REGULATORY AGENCIES

A. All work shall conform to the applicable requirements of the city, county, state and federal codes. Where the requirements of such agencies are more stringent than specified herein, abide by such requirements and consider this specification as supplementary to those requirements.

B. All work shall conform to the applicable requirements of the following: National Fire Protection Association (NFPA) 30 - Flammable and Combustible Liquids Code, NFPA 321 - Basic Classification of Flammable and Combustible Liquids, and NFPA 37 - Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines.

C. All work shall conform to the applicable requirements of the following: Department of

Environmental Protection and the Florida Building Code and Local Ordinances.

D. The fuel system shall meet all requirements of the Florida Administrative Code 62-762. All components of the fuel distribution system shall be UL listed, unless otherwise specified, or approved by the Engineer.

Public Transportation Facility Fuel System City of Key West, Florida 15600 - 1


E. The fuel systems shall be designed and fabricated according to best practices and methods available to date.

F. Electrical Components, Devices, and Accessories shall be listed and labeled as defined in

NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

1.04 QUALIFICATIONS

A. Installer shall have had supervisory experience with five similar fuel systems in the past three years and shall hold a valid pollution control contracting license if required by the State of Florida, Department of Environmental Protection or the local jurisdiction. A copy of the license shall be submitted to the Engineer and to the local authorities, prior to proceeding with construction. Written confirmation from the applicable authorities shall be provided to verify that a pollution control contractor license is not required.

B. Tank installers shall be certified in writing by the tank manufacturer as being qualified to install

the equipment. A copy of the certificate shall be submitted, prior to proceeding with construction.

1.05 SUBMITTALS

A. Complete shop drawings shall be submitted, including certification of shop test to the Engineer for review.

1. The shop drawings for pipe, fittings, and each item listed in the Specifications shall

include manufacturer's catalog data and descriptive literature, fully dimensioned shop layout drawing (1/4" = 1' scale or larger) showing all piping, manholes, valves, equipment connections, tank outline dimensions, platform and stair dimensions, nozzle locations, and installation clearance requirements.

2. Submit all manufacturer's recommended installation and test procedures for all equipment

including tanks, piping, etc.

3. Submit manufacturer's Test Reports (tank leakage, etc) for each tank and specific service application.

4. Submit manufacturer's warranty for each tank and specific service application.

5. Operation and Maintenance Manuals shall be submitted for all components.

1.06 PRODUCT HANDLING

A. Deliver materials and equipment to project site in manufacturer's original, unopened containers with labels intact and legible. Labels shall indicate manufacturer's name and model number. Store equipment in dry protected area. All damaged items shall be replaced with new at no additional cost to Owner.



B. Piping shall be supplied to the site with sealed end caps which shall remain in place until installation. Tanks shall be delivered to the site with all openings sealed which shall remain in place until installation. The tanks shall be properly supported during transportation to the site and during installation in accordance with the manufacturer's instructions.

1.07 ENGINEERING SERVICES

A. When engineering services are specified to be provided by the Contractor, the Contractor shall retain a licensed professional engineer to perform the work. The engineer shall be licensed at the time the work is done and in the state in which the project is located. If the state issues discipline specific licenses, the engineer shall be licensed in the applicable discipline. In addition, the engineer shall be experienced in the type of work being provided.

B. All work is to be done according to the applicable regulations for professional engineers, to

include signing, sealing and dating documents. When submittals are required by a professional engineer, in addition to state required signing and sealing, a copy of the current wallet card or wall certificate indicating the date of expiration shall be included with the submittal.

PART 2 PRODUCTS 2.01 ABOVEGROUND FUEL OIL STORAGE TANK

A. Storage Tank (Existing)

1. Tank Manufacturer’s Representative shall verify that following items are installed and in good working order. a. Emergency Vent: as required by NFPA 30 with no size reduction allowed for

concrete encasement (insulation).

b. Normal Vent: independent of the emergency vent as required by NFPA 30.

c. Grounding: Tank provided with two (2) lugs for connecting ground conductors for lightning protection in accordance with NFPA 780. Verify tank is properly grounded.

d. Steel tank shall be pressure tested in the field at 5 psi per UL 142.

e. Insulated (vaulted) tank shall have appropriate warning signs as required by the local

jurisdiction.

2. Insulated (vaulted) tank shall be placed on reinforced concrete pad made to manufacturer's specifications, or properly engineered for the weight and conditions.

3. Hurricane Restraints shall be designed and installed per the requirements of the Florida

Building Code. Design services shall be provided by a licensed Engineer as described in Part 1. Signed and sealed calculations shall be submitted for record purposes.

4. The fuel tanks shall be left 90% full of diesel fuel at the conclusion of the contract.



B. Tank Accessories (Existing)

1. The following items are existing and shall be relocated with the tank. Items damaged during relocation shall be replaced in-kind at no additional cost to the Owner. a. Access stairs and platform.

b. Primary and emergency vents.

c. Fuel dispenser and piping.

d. Fuel fill station and piping.

e. Fuel dispenser, piping, and accessories.

C. Tank Accessories

1. A mechanical level gauge system shall be provided to indicate the liquid level within the

tank. The level gauge shall have a circular gauge indicator mounted on top of the tank. The tank shall include all openings required for the level gauge system and the leak monitoring system.

2. Fire Suppression Kit:

a. Contractor shall furnish a packaged fire suppression kit including 10 lb. extinguisher with vinyl jacket.

2.02 FUEL OIL TANK ACCESSORIES

A. All ports except for those with capped accessories shall be provided with threaded caps.

B. The following equipment shall be furnished along with the necessary piping and fittings required to provide a complete diesel fuel piping system. Existing systems may be reused and relocated with the tank if they are present and in good working condition.

1. Vent piping shall be 2-inches.

2. Vent cap shall be of the size indicated on the drawings and shall be constructed of cast

iron with removable stainless steel screen, similar to No. 23 as made by OPW or approved equal.

3. Overfill protection stop valve, capable of stopping diesel fuel flow at 95% tank capacity

shall be OPW model 61 fstop-3000 or equal.

4. A double poppet foot valve, OPW model 86 shall be installed inside the aboveground tank at the fuel intake line at a location 6” above the bottom of the tank.

5. A thermally activated emergency shutoff valve (Fusomatic valve), OPW model 178S or

equal, shall be installed in the fuel supply line at the day tank as shown on the schematic.



6. Provide an inline fuel filter/water separator, Racor Model 1000FG or equal, as shown on the fuel supply line.

7. Provide all piping, valves, unions, filters, strainers, and other accessories as shown on the

Drawings and/or as required for a complete system. 2.03 PIPE AND FITTINGS

A. Double containment piping and fittings shall be UL listed Red Thread II as manufactured by Smith Fiberglass Products, Inc., PermaAlert, Ameron Or Approved Equal:

1. Terminating fittings to product pipe shall be the Manufacturer's standard fittings applied

as recommended by the Manufacturer. The termination fittings shall be rated to 5 psi test pressure.

2. Concentric spacers shall be supplied in accordance with the Manufacturers spacing requirements.

3. Flexible test couplings shall be installed where shown on the drawings and shall be rated to 5 psi test pressure.

4. All double wall fittings shall consist of two halves with flanged tabs and assembled with either 1/4-in - 20 standard or 1/4-in - 20 carriage bolts with adhesive. Adhesive shall be Type DS-7014 or DS-7069 and shall be used for the secondary containment piping system.

5. Long sweep elbows shall be used for all changes in direction at the containment piping.

6. Provide seals at building wall to seal between the pipes within the containment piping and the inside of the containment piping.

7. Provide a pressure test port with threaded plug in the double wall piping termination fitting for each double wall fuel oil line.

8. B. Piping within double containment and all above grade fuel and level gauge piping and fittings

shall be Schedule 80 black steel in conformance with ASTM A53 and ANSI B31.3 with 125 lb. threaded malleable iron fittings conforming to ANSI B16.3 and ANSI B31.3.

C. Vent piping and fittings shall be Schedule 40 galvanized steel in conformance with ASTM

A53 and ANSI B31.3 with 125 lb. threaded galvanized malleable iron fittings conforming to ANSI B16.3 and ANSI B31.3.

D. Flexible piping at tank and Equipment connections shall be constructed of a seamless flexible plastic liner with corrosion resistant type 316 stainless steel wire braid reinforced cover, stainless steel collars, and ductile iron fittings.

E. Metallic marking tape shall be laid above all underground piping as shown on the Drawings for the purpose of identification with a metal detector. Tape shall be 6 inches wide, fully detectable, with a minimum 5.0 mil overall thickness. Tape shall be manufactured using a 0.8



mil clear virgin polypropylene film, reverse printed and laminated to a 0.35 mil solid aluminum foil core, and then laminated to a 3.75 mil clear virgin polyethylene film. Tape shall be printed using a diagonally striped design for maximum visibility, and meet the APWA Color-Code standard for identification of buried utilities. Detectable marking tape shall be Pro-Line Safety Products or Approved equal.

F. Provide all piping, valves, unions, filters, strainers, and other accessories as shown on the

Drawings and/or as required for a complete system. 1. Ball valves shall be manually actuated, bronze, resilient seated, full port, threaded two-

piece bolted body type valves. The body and cap shall be of bronze, ASTM 62; the ball and stem of Type 316 stainless steel; and the seats and seals of TFE. The valve handles shall be lockable. Provide a stainless steel lock with each valve. The valves shall have full floating ball and shall be non-lubricated. Valve seats shall be easily accessible and replaceable. Valves shall be rated to 125 psi and shall be as manufactured by Neles-Jamesbury; WKM Or Approved Equal.

2. Three-way ball valves shall be manually actuated, bronze, resilient seated, full port, threaded two-piece bolted body type valves. The body and cap shall be of bronze, ASTM 62; the ball and stem of Type 316 stainless steel; and the seats and seals of TFE. The valve handles shall be lockable. Provide a stainless steel lock with each valve. The valves shall have full floating ball and shall be non-lubricated. Valve seats shall be easily accessible and replaceable. Valves shall be rated to 125 psi and shall be as manufactured by Nibco Or Approved Equal.

3. Gate valves shall be manually actuated, bronze, rising stem, brass solid wedge, screw-in bonnet, threaded body type valves. The body shall be of bronze, ASTM 62; the handwheel and stem of Type 316 stainless steel; and the packing of TFE. Valve seats shall be easily accessible and replaceable. Valves shall be rated to 125 psi and shall be as manufactured by Nibco Or Approved Equal.

4. Check valves shall be brass, swing type check, threaded body type valves. All parts shall be of brass or bronze construction, the seals shall be of TFE. Valve seats shall be easily accessible and replaceable. Valves shall be rated to 125 psi and shall be as manufactured by Nibco Or Approved Equal.

5. Solenoid ball valves shall be 24 Volt electrically actuated, bronze, resilient seated, regular port, threaded two-piece bolted body type valves. The body and cap shall be of brass, ASTM B30 (2000), the ball and stem of Type 316 stainless steel and the seats and seals of TFE. The valves shall have full floating ball and shall be non-lubricated. Valve seats shall be easily accessible and replaceable. Valves shall be rated to 125 psi and shall be as manufactured by Neles-Jamesbury; WKM, Or Approved Equal.

6. Unions shall be malleable brass or bronze seated iron with fully ground faces.

7. Manual strainers shall be "Y" type, capable of removing solids 0.01 inch diameter and larger. The strainer body shall be of semi-steel construction for steel pipe and brass or bronze for copper pipe and shall conform to the latest revision of ASTM A278 (1993), Class 30. Strainer elements, including woven wire mesh, shall be constructed of stainless



steel. The design of the strainer body shall be such that the cleanout plug and screen may be easily removed to permit inspection and cleaning without disassembly of the inlet and outlet piping. End connections shall be ANSI screwed pipe threads. Provide three spare screen elements for each strainer furnished. The strainers shall be designed for a maximum operating pressure of 150 psig. They shall be as manufactured by GA Industries Inc., Pittsburgh, PA, Or Approved Equal.

8. Provide FRP transition piping sump for leak detection of all underground double contained fuel piping. The transition sump shall be watertight and include all required leak sensors, transition fittings, piping boots, test ports, and fittings. Transition sump shall be OPW model PSTF-4630 or equal.

G. All piping and supports that are installed outdoors shall be designed and installed to meet wind loadings as required by the Florida Building Code, all other applicable codes, and the requirements of this specification. Design services shall be provided by a licensed Engineer as described Part 1. Signed and sealed calculations shall be submitted for record purposes.

H. All supports including hangers, brackets, fasteners, and miscellaneous metals shall be Type 316

stainless steel.

2.04 JOINT COMPOUND

A. Joint compound for steel pipe threaded connections shall be a non-hardening, non-solvent joint sealer.

2.05 FUEL LEVEL/LEAK MONITORING EQUIPMENT

A. Existing leak/level detection system shall be replaced.

B. General

1. Furnish a complete electrical monitoring system and associated equipment including but not limited to tank alarm, tank level detection and real time monitoring, tank leak detection, double containment pipe/sump leak sensing and associated modules for the entire fuel level/leak detection system shown on the drawings and specified herein. The system shall be the Pneumercator Liquid Level Control Systems monitoring system TMS 3000 Series or equal. The system shall include provisions for remote monitoring of the alarm conditions, tank level detection, and tank leak detection including all required terminals, switches, and transmitters.

2. The control unit shall be housed in a NEMA 4X 316 stainless steel enclosure. All probes and sensors shall be rated for outdoor service.

3. The control unit shall use a 120 VAC power source.

4. A minimum of eight (8) programmable relay outputs shall be provided. At least one output shall be designated as a common system alarm/fault. The tank level shall be provided with a 4-20 mA outputs for level monitoring each tank at a remote monitoring PLC. Tank manufacturer shall coordinate with the Instrumentation System Supplier to provide all



required signals for the Instrumentation System. Refer to instrumentation drawings for additional signal requirements.

5. The supplier shall be responsible for coordinating and providing all necessary components for a fully functional fuel level and leak detection monitoring system. Any additional components required for a complete system shall be included whether specifically noted or not.

6. Provide complete piping and electrical schematic diagrams for the entire system in the

shop drawing submittals.

C. Tank Level Detection

1. All necessary tank level detection probes shall be provided. The system shall include provisions for remote monitoring of the level detection system including all required terminals, switches, transmitters, and local wiring.

D. Double Wall Interstitial Leak Sensing

1. Double wall interstitial leak sensing shall be capable of detecting the presence of any

liquid in the annulus of the aboveground storage tanks.

E. Double Containment Piping Transition Sump Leak Sensing:

1. Double containment tank sump leak sensing shall be capable of detecting the presence of any liquid in the sump of double wall piping systems. Sensors shall be complete with an adequate length of cable for installation, and provided with any required mounting kits.

F. Tank Alarm Horn and Light

1. A local audible electronic horn and flashing amber light alarm system shall be furnished to indicate a trouble condition.

2.06 SPILL KIT

A. Provide a Core Engineered Solutions Spill Kit, Model EP-SK-2 or equal, including socks, pillows, wipers, at pads, labels, Emergency Response Guidebook, and instruction manual.

2.07 PROTECTIVE COATINGS

A. All piping, piping hangers, piping supports, piping anchors, and supplemental steel shall have a suitable primer and finish coat of epoxy paint. Color to be selected by the Owner.

B. The Contractor shall provide minor field touch-up painting of the fuel tank after completed installation. Surface preparation shall be in accordance with the manufacturer’s factory paint system. Any major defects or damage shall be inspected and repaired by the manufacturer.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 PART 3 EXECUTION 3.01 INSTALLATION

A. General

1. Equipment shall be installed in accordance with the manufacturer's recommendations.

2. All materials and equipment shall be new and free from defects or damage and shall be installed in accordance with the approved recommendations of the manufacturer to conform to the contract documents. The installation shall be accomplished by workmen skilled in this type of work. Equipment shall be erected in a neat manner, shall be aligned, leveled and adjusted to provide satisfactory operation. Installation shall be such that connection and disconnection of piping and accessories can be readily made and so that all parts are easily accessible for inspection, operation, maintenance and repair. Minor deviations from indicated arrangements to provide proper access may be made.

3. Tank installers shall be certified in writing by the tank manufacturer as being qualified to

install the equipment. A copy of the certificate shall be submitted to the local authorities prior to proceeding with construction.

4. Fuel storage tanks shall be grounded.

5. The Contractor shall install all warning and safety signs required by the local Fire Marshal

and as specified herein.

B. Fuel Piping

1. All pipes shall be cut accurately to measurements established at the site and shall be worked into place without forcing or bending.

2. Piping shall be installed to minimize the quantity of piping joints. Provide unions and/or

flexible connections at all equipment connections.

3. Joints shall be fabricated in accordance with standard industry practices and manufacturer's instructions. All joints shall be liquid tight, screwed joints except where flanged connections to equipment or valves are required. Cut pipe square using pipe cutting tool and carefully ream pipe to remove all burrs. Cut a complete thread, using sharp dies properly set and centered, while applying oil graphite cutting lubricant.

4. Aboveground steel piping shall be grounded. Where fittings cause a break in the electrical

continuity of the system approval jumpers shall be provided.

5. Refer to Part 2 for requirements for piping mounted outdoors.

C. Flexible Fuel Piping

1. Provide flexible piping connectors at all day tank connections, all generator connections, all storage tank connections and all equipment connections.



2. Flexible connections shall be a minimum of 12-inches long or as required for equipment removal or maintenance. Protect flexible connectors where physical damage may occur due to adjacent equipment, other piping, wiring, or where subject to possible damage from operating personnel.

D. Leak Sensor Installation

1. Install all level and leak sensing equipment, monitoring panel interface modules and all

wiring, conduit, junction boxes, sealing fittings and other material required for a complete operating system.

2. Install all monitoring equipment in accordance with the manufacturers instructions

including compliance with hazardous locations as defined in the National Electrical Code as locally amended and local codes having jurisdiction.

3. Provide instrument identification (tagging), calibration and manufacturer services.

3.02 CLEANING

A. At the conclusion of the work thoroughly clean all pipelines to remove all dirt, stones, pieces of wood or other material which may have entered during the construction period.

B. If defective piping or joints are discovered at this time, they shall be repaired or replaced by the

Contractor at no cost to the Owner. 3.03 PERMITS

A. Contractor shall contact the local public health department and the local building department

for necessary inspections and to obtain required operating permits in the Owner’s name.

B. The entire system including the tanks, piping, equipment, and leak detection system shall be inspected and approved by DEP.

C. Contractor shall obtain written approval of the installation from the local fire official of

jurisdiction. 3.04 PROTECTIVE COATINGS

A. Finish painting shall be provided as specified herein. 3.05 TESTING

A. Piping shall be tested in strict accordance with the manufacturer's testing requirements. Piping system shall be tested upon completion of the roughing-in before setting equipment. Piping shall be subjected to an air test of 10 psig maximum. The entire system shall be pressure tested with fuel at 25 psig and proved tight at this pressure for a period of four (4) hours. The secondary containment pipe shall be leak tested at 5 psi for four (4) hours or at the manufacturer's suggested pressure and/or method. Defective work or material shall be replaced



and retested. The system shall be test plugged or capped prior to testing to prevent test pressure from reaching any equipment or storage tank.

B. Storage tanks and piping shall be precision tested by a state qualified tester.

C. Storage tanks shall be pressure tested at 5 psi and all fittings soaped for a period of at least 12

hours prior to placing tanks. Tanks under test pressure shall not be left unattended.

D. Contractor shall provide fuel for any required testing and retesting. If the fuel subsequently becomes contaminated, Contractor shall dispose of the fuel at no cost to the Owner and in accordance with all DEP regulations. Upon completion of the testing and prior final acceptance of the system, the Contractor shall fill the tanks to 90% capacity.

END OF SECTION



SECTION 15950 HVAC CONTROL SEQUENCES

PART 1 GENERAL

1.01 SCOPE OF WORK

A. The automatic temperature control (ATC) shall be as shown on Drawings H-1 to H-6 and HD-1 to HD-3, and shall perform the functions specified and as described in this section.

1.02 SUBMITTALS

A. Submit the following:

1. A complete description of the operation of the control system, including sequences of operation. The description shall include control drawings and wiring diagrams of the controlled system.

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION

3.01 CONTROL SEQUENCES A. General

1. HVAC equipment will operate with the following sequences of operation.

2. The following will apply to all sequences.

a. All sequences are reversible unless otherwise noted. b. Manual reset of control functions with manual reset will be at the local control panel

unless otherwise noted. c. Where required to prevent nuisance shut downs of systems, provide time delay of

sensors to allow system start up before the sensors are activated. This would include, but not be limited to low temperature freeze protection on 100 percent outdoor air units.

d. For fan systems with shut off dampers and air flows greater than 2000 cfm and fan operating static pressure greater than 1-in water gauge, fans shall be stopped and started by damper end switches. When the sequence calls for the fan to run, the control system shall open the respective damper. When the damper is open as indicated by an end switch on the damper the fan shall start.

e. Where control sequences refer to activation of an alarm indicator, it will be understood to mean activation of a labeled pilot light at the local ATC panel. A dedicated pilot light will be provided for each alarm unless a common alarm light is specified.

B. Control Sequences for Exhaust Fans

Public Transportation Facility HVAC Control Sequences City of Key West, Florida 15950 - 1


1. Exhaust Fan with Continuous Operation Exhaust Fan EF-4

a. When the on/off switch is in the off position, the fans shall be off. b. When the on/off switch is in the on position, the fans shall run.

2. Exhaust Fans with, Hand Off Auto Switch and Thermostat

Exhaust fan EF-1, EF-2, EF-3, EF-5, EF-17

a. When the Hand Off Auto switch is in the hand position, the fan shall run. b. When the Hand Off Auto switch is in the off position, the fan shall be off. c. When the Hand Off Auto switch is in the auto position and the temperature sensed

by the space thermostat is above set point (85ºF), the fan shall run. d. When the Hand Off Auto switch is in the auto position and the temperature sensed

by the space thermostat is below set point (85ºF), the fan shall be off.

3. Exhaust Fan with On-Off Control and CO2 control Exhaust Fans EF-6, EF-7 and EF-8 a. When the On-Off switch is in the on position, the fan shall run. b. When the On-Off switch is in the off position, the fan shall be off. c. For EF-6 and EF-8 only, when the CO2 alarm is activated, the fan shall run until the

alarm is cleared.

4. Exhaust Fan with Motion Sensor Control Exhaust Fans EF-9, EF-10, EF-11, EF-12, EF-13, EF-14, EF-15, and EF-16

a. When the motion sensor is not activated, the fan shall be off. b. When the motion sensor is activated, the fan shall run. After a field adjusted runt

time, the fan shall stop, and the motion sensor shall return to inactive condition.

C. Control Sequences for Constant Volume Direct Expansion Units

1. Air Conditioning Unit with Space Thermostat Control Units AHU-5, AHU-6A, and AHU-6B

a. When the unit thermostat on/off switch is placed in the off position, the temperature

controls shall be inactivated, the supply fan and condensing unit shall be off. b. When the unit thermostat is placed in the on position and the system fan on/auto

switch is in the on position, the temperature controls shall be activated, and the fan shall run continuously. 1) When the space temperature sensed by the space thermostat is above the

cooling set point, the condensing unit shall be on in cooling mode. 2) When the space temperature sensed by the space thermostat is below the

cooling set point, the condensing unit shall be off. c. When the unit thermostat is placed in the on position and the system fan on/auto

switch is in the auto position, the temperature controls shall be activated.



1) When the space temperature sensed by the space thermostat is above the cooling set point, the condensing unit shall be on in cooling mode, and the supply fan shall be on.

2) When the space temperature sensed by the space thermostat is below the cooling set point, the condensing unit shall be off, and the supply fan shall be off.

d. The space thermostat shall have an adjustable set point. The cooling set point for AHU-5 shall be 72°F. The cooling set point for AHU-6A and AHU-6B shall be 80°F.

e. Dual (or two-speed) compressor units shall have two stages of cooling. f. Provide a high temperature switch. Set point shall be 95°F. Switch shall send a high

space temperature alarm signal to the instrumentation system. See Electrical and Instrumentation drawings for additional details. Coordinate interface with instrumentation system supplier.

2. Heat Pump Unit with Space Thermostat Control with Nighttime Setback Units AHU/ACCU-1, AHU/ACCU-2, AHU/ACCU-3, and AHU/ACCU-4

a. When smoke is sensed by the smoke sensor, all other control functions shall be

overridden and the supply fan shall be off, and an alarm light in the smoke sensor shall be activated. Smoke sensors shall be manually reset. When multiple air handling units serve the same space, any smoke detector shall shut all units down in that space.

b. When the unit thermostat on/off switch is placed in the off position, the temperature controls shall be inactivated, the supply fan and condensing unit shall be off.

c. When the unit thermostat is placed in the on position and the system fan on/auto switch is in the on position, the temperature controls shall be activated, and the fan shall run continuously. 1) When the space temperature sensed by the space thermostat is above the

cooling set point (75°F), the condensing unit shall be on in cooling mode. 2) When the space temperature sensed by the space thermostat is below the

cooling set point (75°F), the condensing unit shall be off. 3) When the space temperature sensed by the space thermostat is below the

heating set point (70°F), the condensing unit shall be on in heating mode. At a continued drop in space temperature, the auxiliary electric heat shall be activated.

4) When the space temperature sensed by the space thermostat is above the heating set point (70°F), the condensing unit shall be off.

d. When the unit thermostat is placed in the on position and the system fan on/auto switch is in the auto position, the temperature controls shall be activated. 1) When the space temperature sensed by the space thermostat is above the

cooling set point (75°F), the condensing unit shall be on in cooling mode, and the supply fan shall be on.

2) When the space temperature sensed by the space thermostat is below the cooling set point (75°F), the condensing unit shall be off, and the supply fan shall be off.

3) When the space temperature sensed by the space thermostat is below the heating set point (70°F), the condensing unit shall be on in heating mode, and the supply fan shall be on. At a continued drop in space temperature, the auxiliary electric heat shall be activated.



4) When the space temperature sensed by the space thermostat is above the

heating set point (70°F), the condensing unit shall be off, and the supply fan shall be off.

e. Dual (or two-speed) compressors shall have two stages of cooling. f. The space thermostat shall be programmable with a dual position adjustable set

point. Nighttime set back set point shall be 80°F cooling and 65°F heating.

END OF SECTION



SECTION 15990 TESTING, ADJUSTING AND BALANCING

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish the necessary labor, materials, instruments, transportation and devices required and test, adjust and balance the total heating-ventilating-cooling systems, each as specified and detailed herein, or as required, to cause the systems to perform in accordance with the intent of the Drawings and this Section. Systems to be tested, adjusted and balanced all systems installed by the HVAC Contractor.

1. Work shall include systems shown on Drawings H-1 to H-6 and HD-1 to HD-3

B. Testing, balancing and operation of the systems shall be performed by competent and experienced personnel, having formerly done similar work and whose qualifications and performance shall be subject to the approval of the Engineer. Test and balance air and water system and submit testing and balancing reports to the Engineer for review and approval. Re-balance when required by the Engineer, incorporating all changes and certify the systems have been tested and balanced to meet specified requirements.

C. The tests shall demonstrate the specified capacities and operation of equipment and materials comprising the systems. Such tests other than as described herein, which are deemed necessary by the Engineer to indicate the fulfillment of the Contract, shall be made.

D. Data required by this Section shall receive complete approval before final payment is made.

E. If, in the opinion of the Engineer, the Contractor has not, will not, or cannot comply with the testing, balancing and adjusting requirements of this Section, he may advise the Owner to employ a qualified firm to perform such work at Contractor's sole expense.

1.02 SUBMITTALS

A. Submit the following:

1. Qualifications and experience information and data as detailed under Paragraph 1.04 below.

2. Proposed testing schedules and procedures.

3. Preliminary draft "system" balancing reports as systems are completed and tested.

4. Final systems and Project balancing reports as final system adjustments are made as systems are accepted by the Owner.

5. All submittals shall contain a statement that Section 15990 and all other referenced Sections have been read and complied with. The certification statement shall be made by all of the following that are applicable: the Contractor, subcontractor, and the vendor. The

Public Transportation Facility Testing, Adjusting, and Balancing City of Key West, Florida 15990 - 1


statement shall be an individual statement for each party involved, and shall be included with every submittal and resubmittal.

B. In general, corrections or comments or lack thereof made relative to submittals during review shall not relieve the Contractor from compliance with the requirements of the drawings and specifications. Submittals are for review of general conformance with the design concepts of the project and general compliance with the contract documents. The Contractor is responsible for the final design conforming and correlating all quantities and dimensions, selecting fabrication processes and techniques of construction, coordinating the work of all trades, and performing the work in a safe and satisfactory manner.


A. Qualifications standards for this work - Affiliation with manufacturers, installing contractors or engineering firms will not preclude acceptability. Submit qualifications within 60 days after Contract award. Membership in the AABC or NEBB for air and water testing is required. The testing and balancing contractor shall not be affiliated with the on-site contractors.

B. To perform required professional services, the balancing agency shall have a minimum of two test-and-balance engineers certified by the AABC or NEBB.

C. This certified test-and-balance engineer shall be responsible for supervision and certification for the total work specified herein.

D. The balancing agency shall submit records of experience in the field of air and hydronic system balancing or any other data as requested by the Engineer. The supervisory personnel for the firm shall have at least five years’ experience, and all the employees used in this project shall be qualified technicians in this specific field.

E. The balancing agency shall furnish all necessary calibrated instrumentation to adequately perform the specified services. An inventory of all instruments and devices in possession of the balancing agency may be required by the Engineer to determine the balancing agency's performance capability.

1.04 ENGINEERING SERVICES

A. When engineering services are specified to be provided by the Contractor, the Contractor shall retain a licensed professional engineer to perform the services. The engineer shall be licensed at the time the work is done and in the State in which the project is located. If the State issues discipline-specific licenses, the engineer shall be licensed in the applicable discipline. In addition, the engineer shall be experienced in the type of work being provided.

B. All work is to be done according to the applicable regulations for professional engineers, to include signing, sealing and dating documents. When submittals are required by a professional engineer, in addition to state required signing and sealing, a copy of the current wallet card or wall certificate indicating the date of expiration shall be included with the submittal.

1.05 SCHEDULE AND PROCEDURES

A. A complete schedule of balancing procedures for each of the buildings or systems shall be submitted in sufficient time in advance so that the Engineer might arrange to observe these



procedures as they progress. Before commencing with the balancing of the systems submit the methods and instruments proposed to be used to adjust and balance the air and water systems.

B. Submit proposed testing programs at least two weeks prior to the scheduled test to assure agreement as to personnel and instrumentation required and scope of each testing program.

1.06 DRAWING REVIEW

A. The balancing organization shall thoroughly review the location of all fresh air dampers, return dampers, relief air dampers, spill dampers, quadrant dampers, splitter dampers, bypass dampers, face dampers, fire dampers, registers, grilles, diffusers, VAV boxes, troffers, etc. The purpose of the review is to finalize the optimum locations for dampers and test ports shown on the Drawings.

B. The balancing organization shall thoroughly review the location of all balancing valves, test ports, gauge cocks, thermometer wells, and flow control devices. The purpose of the review is to finalize the optimum locations for these components.

1.07 EQUIPMENT CURVES

A. Fan Characteristics Charts: The HVAC and General Contractors shall provide to the Balancing Organization any required characteristic curve charts for all fans to include air conditioning units and air handling units. Characteristic curve charts shall be not less than 8-1/2-in by 11-in and shall show the static pressure, capacity horsepower and overall efficiency for operating conditions from no load to 130 percent of specified load. The minimum size of the actual fan curve shall be no less than 6-in by 8-in. The use of faxed copies of curves is not acceptable.

1.08 GUARANTEE

A. The balancing work shall be guaranteed to be accurate and factual data, based on readings in the field. All typewritten data shall be submitted within 14 working days of the performance of the test. Test data shall not be held until final completion, but shall be submitted on an interim basis as soon as the test or appropriate groups of tests are finished.

PART 2 PRODUCTS

2.01 MATERIALS

A. Furnish gaskets, lubricants and other expendable materials required to be replaced during the execution of this work.

B. Fixed-pitched pulleys required for fan adjustments shall be furnished on an exchange basis by the party responsible for the fan installation.

C. Where test results indicate that air quantities at any system fan are below or in excess of the specified amount, the HVAC and General Contractors, at their own expense, shall change driving pulley ratio or shall make approved changes to obtain the specified or scheduled air quantities.

D. Testing apparatus: Furnish plugs, caps, stops, valves, pumps, compressors, blowers and similar devices required to perform this work.



1. Furnish anemometers, thermometers, gauges, voltmeters, ammeters, tachometers and similar instruments, not part of the permanent installation, but required to record the performance of the equipment and systems.

2. Testing apparatus, not part of the permanent installation, shall remain the property of the Contractor, but made available to the Engineer.

3. Instruments used for testing shall be certified accurate to within plus or minus 0.10 degrees F for temperature or plus or minus 0.10-in wc for pressure. Calibration of the instruments shall be done within seven days of testing for this project and henceforth every 30 days thereafter for the duration of the testing period. Certification of calibration shall be submitted to the engineer prior to starting the work.

2.02 TESTING REPORTS

A. Forms: Furnish test report data on 8-1/2-in by 11-in bond AABC or NEBB form paper. Submit format for recording data and receive approval prior to use.

B. Reports shall be Excel spreadsheet format and shall be submitted in both hard copy and as a data file.

C. The report shall contain the following general data in a format selected by the balancing agency:

1. Project number

2. Contract number

3. Project title

4. Project location

5. Project architect

6. Project mechanical engineer

7. Test and balance agency

8. Test and balance engineer

9. General contractor

10. Mechanical subcontractor

11. Dates tests were performed

12. Certification

D. At a minimum, the report shall include:

1. Preface. A general discussion of the systems, any abnormalities and problems encountered.



2. Instrumentation list. The list of instruments including type, model, manufacturer, serial number and calibration dates.

3. System Identification. In each report, the VAV boxes, zones, supply, return and exhaust openings and traverse points shall be numbered and/or lettered to correspond to the numbers and letters used on the report data sheets and on the report diagrams.

E. Prepare 11-in by 17-in single line diagrams or 12-in by 18-in half size drawings showing all duct systems indicating all terminal air outlets including diffusers, grilles and registers, perforated plates, nozzles and other types of air supply, exhaust or return outlets. The minimum scale for diagrams showing the measurement points shall be 1/8-in=1-ft-0-in in the final form as submitted. The use of faxed copies of diagrams is not acceptable. The location of test points shown on the diagrams shall be clear and easy to locate on the diagram. The identification mark of the test points shall be the same as is shown on the test report showing the test data. The identification for test points shall include indication of the units served, and shall not have a duplicate in the project. Each test sheet shall include the following data:

1. Job name and address.

2. Name of HVAC Contractor.

3. Name of balancing organization.

4. Instruments used to perform the test.

5. Name of test technician or test engineer.

6. Fan system and/or zone number.

7. Room number or area name.

8. Size of outlet.

9. Type outlet.

10. Manufacturer of outlet.

11. The cfm at each outlet on system and corresponding cfm at each outlet as noted on the plans.

12. Percent deviation of the measured flow versus the design flow.

13. Indication of the branch and terminal that are the open/low that are the basis for balancing the remainder of the system

F. Prepare 11-in by 17-in single line diagrams or 12-in by 18-in half size drawings showing all waters systems indicating all coils. The minimum scale for diagrams showing the measurement points shall be 1/8-in=1-ft-0-in in the final form as submitted. The use of faxed copies of diagrams is not acceptable. The location of coils shown on the diagrams shall be clear and easy to locate on the diagram. The identification mark of the coils shall be the same as is shown on the test report showing the test data. Each test sheet shall include the following data:



1. Job name and address.

2. Name of HVAC Contractor.

3. Name of balancing organization.

4. Instruments used to perform the test.

5. Name of test technician or test engineer.

6. Pump number.

7. Coil number.

8. The flow at each coil on the system and corresponding flow at each coil as noted on the plans.

9. Percent deviation of the measured flow versus the design flow.

10. Indication of the branch and coil that are the open/low that are the basis for balancing the remainder of the system

PART 3 EXECUTION

3.01 START OF BALANCING

A. The General Contractor shall notify the Balancing Organization and Engineer when systems become operational and ready for preliminary and final testing, adjusting and balancing.

B. Final balancing shall not begin until system has been installed complete and is capable of normal operation. Provide personnel to assist in rough balance and calibration.

C. All grilles, dampers, fans, coils, pumps, valves and linkages shall be verified to be installed and operating.

D. System shall be capable of operating under control as specified on Drawings and/or contained herein.

E. Visually inspect all fire dampers or fire/smoke dampers on branch take-offs to each floor to ensure that they are fully open.

F. Verify with straight edge that fan and motor shafts are parallel and that sheaves are in proper alignment.

G. Verify that belts are properly tensioned when unit is operating with no excessive squeal at startup. If not correct, adjust sheaves or motor base accordingly.

H. Start fans and verify that rotation is correct. If rotation is incorrect coordinate with electrical contractor to switch power leads such that the motor rotates correctly.



I. Check nameplate voltage on motor compared to scheduled voltage. Notify the Engineer immediately of any discrepancies. Measure and record actual voltage across all power leads. Notify the Engineer of discrepancies immediately.

J. Check motor nameplate full load amps and measure and record amperage across all power leads. If there are marked discrepancies in amperage draws between legs, notify the Engineer immediately.

K. Measure and record fan and motor rpm. Check that motor rpm agrees with nameplate and scheduled rpm.

L. If, upon commencing the work, the balancing contractor finds that the systems are not ready, or if a dispute occurs as to the readiness of the systems, the balancing agency shall request an inspection to be made by the Engineer. This inspection shall establish to the satisfaction of the represented parties whether or not the systems meet the basic requirements for testing and balancing. Should the inspection reveal the notification to have been premature, all costs for the inspection and work previously accomplished by the balancing agency shall be paid for by the General Contractor. Furthermore, such items that are not ready for testing and balancing shall be completed and placed in operational readiness before testing and balancing services shall be recommenced.

M. Leaks, damage and defects discovered or resulting from startup, testing and balancing shall be repaired or replaced to like-new condition with acceptable materials. Tests shall be continued until system operates without adjustments or repairs.

3.02 REQUIRED ACCURACY

A. Systems shall be balanced to be within the following limits of the capacity shown on the Drawings. Limits shall be applied to both individual components and to the system totals.

1. General Systems (plus/minus 10 percent)

3.03 TESTING

A. HVAC Air Systems (Air Handling Units, Rooftop Units, Fans, Make-up Air Units, Fan Coil Units, CRAC Units, Positive Pressure Units)

1. Balance the supply return and exhaust air systems in accordance with AABC or NEBB Standards by the use of direct reading instruments such as an "anemotherm" or velometer which has been properly calibrated.

2. Temporarily add static pressure to the system to simulate the effect of dirty filters by blanking off portions of the filter section, covering filter section with cheesecloth or other suitable means. Confirm static has been added with new static pressure reading across fan. Remove cheesecloth, etc., after traverses are complete.

3. If so instructed by the Engineer, further balancing of temperature shall be made either by thermometer or by temperature recorder.

4. The sequence of air balancing shall be as follows: a. First, establish air flow quantity at supply fan by main duct traverse.



b. Next, establish air flow quantities in main ducts and branches. c. Finally, establish air flow quantities at outlets, using proportional balancing among

branch outlets. All multiple opening systems shall be left with at least one "open low" inlet or outlet, to which all other system openings shall be proportionally balanced. The "open low(s)" on each system shall be indicated in the report.

d. Grille and register readings may be made by a vane anemometer, but diffuser readings shall be made by a flow hood or a velometer using the tip recommended by the diffuser manufacturer. All supply outlets shall be adjusted so that there are no drafts.

e. After all outlets are adjusted to within the tolerances specified elsewhere in this Section, remeasure all system outlets, and retraverse all branch and main ducts to establish final "as balanced" flows.

f. All main air ducts shall be traversed using a Pitot tube and manometer. The manometer shall be calibrated to read two significant figures in all velocity pressure ranges. The static pressure reading at the traverse point shall be recorded for each successive traverse. 1) A main duct is defined as either of the following:

a) A duct serving five or more outlets. b) A duct serving two or more branch ducts. c) A duct emanating from a fan or plenum.

2) All other ducts are branch ducts. 3) The intent of this operation is to measure by traverse the total air quantity

handled by the fan and to verify the distribution of air to zones and to adjust system pressure to minimum level required to satisfy the farthest air outlet.

g. Adjust fan speeds if results of system capacity tests are not within tolerances specified and repeat Paragraphs 3.03A.4.c, d and e above, as required.

h. Mark all final balancing damper positions with a permanent marker. i. For systems which modulate between different flow modes (e.g., minimum outside air

to 100 percent outdoor air or 100 percent return air to 100 percent exhaust) measure and report system flow under both extremes of modulation and check for excessive system flow deviation above design, when system is modulating between its end points.

5. Furnish data in Excel spreadsheet format tabulating the following: a. Opening number, type, size and design flow rate. b. Quantity of air in cfm at each air outlet and inlet. c. Dry bulb temperature in each room. d. Dry bulb temperature of the supply air. e. Outdoor dry and wet bulb temperature at the time the above tests are conducted. (Wet

bulb temperature only required for AC systems)

6. Adjust belts, sheaves and the alignment of air handling equipment.

7. Where various combinations of sheaves must be installed on fan systems to achieve the correct air delivery, change the sheaves and continue to take successive readings until the correct combinations are installed.

8. Furnish data in Excel spreadsheet format taken at each air moving device. a. Manufacturer, model number and serial number of units. b. All design and manufacturer's rated data. c. Total quantity of supply air in cfm. d. Total quantity of return air in cfm.



e. Total quantity of exhaust or relief air in cfm. f. Total quantity of outside air in cfm. g. Outlet velocity - fpm. h. The rpm of each fan or blower. i. Maximum tip speed - fpm. j. The rpm of each motor. k. Voltage and ampere input of each motor (one reading for each phase leg on 3 phase

motors). l. Pressure in inches w.g. at inlet of each fan or blower. m. Pressure in inches w.g. at discharge of each fan or blower. n. Pressure drops across system components such as louvers, filters, coils and mixing

boxes. o. Submit the actual fan operating point on a copy of the fan shop drawing showing

operating curve. p. List the following data from all fan motors installed.

1) Manufacturer model and size. 2) Motor horsepower, service factor and rpm. 3) Volts, phases, cycles and full load amps. 4) Equipment locations.

q. Pressure in inches w.g. at inlet to unit cabinet. r. Pressure in inches w.g. at discharge from unit cabinet. s. Outdoor air and return air damper position. t. List the following data for all coils installed in the unit:

1) Airflow rate in cfm. 2) Number of rows. 3) Number of fins per inch. 4) Face area in square feet. 5) Tube size in inches. 6) Tube and fin materials. 7) Outdoor-air, wet- and dry-bulb temperatures in deg F. 8) Return-air, wet- and dry-bulb temperatures in deg F. 9) Entering-air, wet- and dry-bulb temperatures in deg F. 10) Leaving-air, wet- and dry-bulb temperatures in deg F. 11) Water flow rate in gpm. 12) Water pressure differential in feet of head or psig. 13) Entering-water temperature in deg F. 14) Leaving-water temperature in deg F. 15) Refrigerant expansion valve and refrigerant types. 16) Refrigerant suction pressure in psig. 17) Refrigerant suction temperature in deg F. 18) Inlet steam pressure in psig. 19) Input fuel type. 20) Input fuel capacity in BTU/h. 21) Number of stages. 22) Actual operating current and voltage for all legs.

B. Electric Heating Coils (Unit-mounted, Duct-mounted, Unit Heaters)

1. Furnish data in Excel spreadsheet format tabulating the following: a. Manufacturer and model number.



b. All design and manufacturer's rated data. c. Actual operating current and voltage for all legs. d. Coil location and identification. e. Number of stages. f. Air flow in CFM. g. Face area in square feet. h. Entering air dry bulb temperature in degrees F. i. Leaving air dry bulb temperature in degrees F.

C. Condensing Units and Heat Pumps

1. Furnish data in Excel spreadsheet format tabulating the following: a. Manufacturer, model number, size and serial number of all units. b. All design and manufacturer's rated data. c. Suction and condensing temperatures, and pressures. d. Outside air dry bulb temperature in degrees F. e. Voltage and ampere input of motors under full load (one for each phase leg). f. Capacity of machine in Btuh.

3.04 FINAL ACCEPTANCE

A. At the time of final inspection, the balancing agency shall recheck, in the presence of the Engineer, specific and random selections of data recorded in the certified test-and-balance report.

B. Points and areas for recheck shall be selected by the Engineer.

C. Measurements and test procedures shall be the same as the original test and balance.

D. Selections for recheck, specific plus random, shall not normally exceed 15 percent of the total number tabulated in the report, except where special air systems require a complete recheck for safety reasons.

E. If the specific rechecks are more than five percent deviation from the report or specified flows, all of the systems, that require specific recheck, shall be rebalanced. If five percent or five of the random checks, whichever is less, exceeds a ten percent deviation from the specified flows, the report shall be rejected. In the event the report is rejected, all systems shall be readjusted and tested, new data recorded, a new certified test-and-balance report submitted, and a new inspection test made, all at no additional cost to the Owner.

3.05 OPPOSITE SEASON TEST

A. The balancing agency shall perform an inspection of the HVAC system during the opposite season from that in which the initial adjustments were made. The balancing agency shall make any necessary modifications to the initial adjustments to produce optimum system operation.

END OF SECTION



SECTION 16015 POWER SYSTEM STUDY

PART 1 GENERAL

1.01 DESCRIPTION

A. Provide all items of labor, materials and equipment necessary for investigation, development,

evaluation and report generation of the work described in this Section. The entire power distribution system shall be included in the Study being provided for this Project.

B. Visit the site to determine actual conditions, equipment and settings and related elements necessary to prepare a complete One Line Diagram of the entire power distribution system. This One Line Diagram shall include the equipment (loads/ratings), cable and raceway information and other data associated with the installations (new and existing) to allow evaluation and calculation of the various Studies to be provided in the Report outlined herein. Field work shall be coordinated with the Owner and shall follow all applicable safety standards for the activities required. The Contractor shall review / compare the Owner’s operational and safety standards with his own and provide adequate PPE for those involved in any data gathering activities as outlined by applicable Regulatory Agencies. No extra compensation will be allowed by failure to determine existing conditions.

C. Furnish a complete Short-Circuit, Protective Coordination, Load-Flow and Arc Flash Hazard

Analysis Study per the requirements set forth in the criteria established for the Project, the criteria outlined herein this document, and as identified in the current version of NFPA 70E - Standard for Electrical Safety in the Workplace. The arc flash hazard analysis shall be performed according to the IEEE Standard 1584, the IEEE Guide for Performing Arc-Flash Calculations; modified as hereinafter identified. Temporary Arc-Flash labeling of the electrical equipment shall be provided upon acceptance of the pre-final study/report for equipment being transferred to the Owner for operational acceptance during the construction effort. Final Arc- Flash Labeling shall be provided as indicated after all field start-up / acceptance testing and adjustments have been made to the over-current protective and solid-state devices; these revisions are to be included and incorporated to the One Line modeling based on final “as-built” conditions.

D. Studies shall be provided to the Owner in the Report submittals as indicated herein this

Section. The Final (Record) Report shall address all final adjustments and modifications/changes provided during the construction and acceptance start-up of the equipment provided.

E. Drawings and Material Data Sheets / Product Information provided by the Owner is

considered as generally indicative of Power System but is not to be considered as matching actual site conditions. Modifications/field changes may have occurred which were not recorded; therefore, provide field verification as necessary to validate the Power System as Work under this project in preparation of the Short-Circuit, Protective-Coordination and Arc-Flash Study and Analysis.

F. The general (not limited) approach to the evaluation and analysis work included in this

assignment shall include the following effort:

Public Transportation Facility Power System Study City of Key West, Florida 16015 - 1


1. Collect system and “as-installed” data associated with all electrical equipment, feeders, and devices associated with this Study/Report. This effort shall also include obtaining the necessary load-history and available fault current from the serving Power Utility Company.

2. Determine system modes of operation by conducting interviews with Owner’s Operational Staff.

3. Determine bolted short-circuit and arc fault currents.

4. Determine protective device characteristics and duration of arcs.

5. Document system voltages and classes of equipment.

6. Evaluate existing equipment short circuit ratings against computed available fault currents.

7. Arc Flash Hazard Analysis to select working distances as outlined herein, determine incident energy for all equipment and determine flash-protection boundary zones for all affected equipment.

1.02 REFERENCES

A. ANSI - American National Standards Institute, Inc. 1. ANSI C57.12.00 – Standard General Requirements for Liquid-Immersed Distribution,

Power, and Regulating Transformers.

2. ANSI C37.13 – Standard for Low Voltage AC Power Circuit Breakers Used in Enclosures.

3. ANSI C37.010 – Standard Application Guide for AC High Voltage Circuit Breakers Rated on a Symmetrical Current Basis.

4. ANSI C 37.41 – Standard Design Tests for High Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches and Accessories.

B. ASTM - American Society for Testing and Materials

C. IEEE - Institute of Electrical and Electronic Engineers

1. IEEE 141 – Recommended Practice for Electric Power Distribution and Coordination of

Industrial and Commercial Power Systems.

2. IEEE 242 – Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems.

3. IEEE 399 – Recommended Practice for Industrial and Commercial Power System Analysis.

4. IEEE 1584, Latest Edition -Guide for Performing Arc-Flash Hazard Calculations



D. IPCEA - Insulated Power Cable Engineers Association

E. NEMA - National Electrical Manufacturers Association

F. NESC - National Electrical Safety Code

G. NFPA - National Fire Protection Association

1. NFPA 70 -National Electrical Code, latest edition

2. NFPA 70E – Standard for Electrical Safety in the Workplace, latest edition

1.03 STUDY REQUIREMENTS

A. The Work associated with this assignment must comply with all Federal and State, municipal or other authority's laws, rules and/or regulations. The Contractor shall enlist the services of a qualified, licensed Professional Engineer (hereinafter referred to as Engineer and/or Engineer-of-Record) to conduct the actual analysis, evaluation and development of the Report and Arc Flash labeling.

B. As previously stated, the Power System Study / Analysis shall include All Electrical Equipment; evaluations / analyses shall be conducted by a licensed Professional (Electrical) Engineer in the State where the Project is being provided; hereinafter referred to as the Engineer-of-Record or EOR during the detailed design phase of the Project to coordinate equipment selections, evaluate / select Over Current Protective (OCP) devices and settings for coordination and potential arc flash mitigation where appropriate and determined to provide a cost/benefit.

C. The Report(s) / calculations must be supplied to the Designer and Contractor before final equipment and specifications are considered accepted or approved. The EOR shall provide documentation for all assumptions related to machine impedances, cable impedances (both resistance and inductance), transformer impedances and other equipment values used to complete the computations where obtaining actual data is not available. The EOR shall develop fault conditions under minimum, maximum, and average power consumption scenarios based on the way the plant is to be operated. The Engineer shall also develop fault scenarios with standby power generators where included and used instead of the electric utility source. Where applicable, Load Flow calculations and Reports are to be provided as outlined in the Design Criteria for differing operational scenarios or otherwise required for the Project. Arc Flash Hazard analysis and equipment evaluations to be provided as hereinafter indicated.

D. All One Line Diagrams included in the Study / Report shall utilize naming conventions and identifiers matching the Design Documents; generic identifiers are not considered appropriate. Coordinate equipment naming / identifiers with the Owner during the design development phase of the project taking into account the existing terminology used.

E. Load Flow Analysis: Provide a load flow analysis based on the following operational considerations;

1. All loads at full load output



2. Only loads connected to PP-1E at full load output

3. These evaluations shall be conducted for both the Normal and Standby power sources.

F. Short Circuit, Protective Coordination and Arc Flash Hazard Analysis Study

1. A short circuit, protective coordination and arc flash hazard analysis study shall be made for the entire distribution system in accordance with ANSI/IEEE C37.10 & C37.13, IEEE Std. 141, 242 and 399 beginning at Utility connections and ending at the largest feeder from each motor control center or panel as applicable for the system and analysis being conducted. Actual Utility data including system and equipment impedances, X/R Ratios, OCP device(s) and other applicable ratings are to be obtained by the EOR; include this data as provided by the Utility Company in the Report provided.

2. The protective coordination study shall consist of the following:

a. All protective devices contained in the scope of work shall be evaluated to provide the best possible coordination and protection where possible. The coordination study shall include log-log plots of phase overcurrent and where applicable, ground overcurrent protection devices on log-log time-current characteristic paper. Complete plots of these devices will be accurately plotted through their operating range. A One Line sketch shall be included on each plot sheet showing the device identifications and ratings. Attempts are to be made by the Engineer to obtain complete coordination on every portion of the system where possible. Appropriate maximum fault levels, transformer inrush currents, conductor insulation withstand curves and transformer damage curves / withstand points shall be plotted on each coordination plot sheet to assure adequate component protection and maximum system reliability.

b. Each current transformer shall be checked for saturation to insure that they accurately

translate all fault currents which may be available on the system.

c. A complete and thorough discussion of each coordination curve sheet shall be prepared. This discussion will describe the areas where coordination is effective, as well as any instances where a lack of coordination exists. All protective relay and solid-state device settings; fuse sizes; and low-voltage circuit breaker settings shall be tabulated. Recommendations for equipment and/or conductor changes which may be necessary to improve protection and/or coordination shall also be provided in a section of the completed coordination study. The recommendations should include discussion on additional devices/replacements and adjustments to existing equipment.

d. A complete set of coordination curves (complete with device settings indicated on

the TCC) are to be prepared starting with the Utility Company’s OCP device(s) and the main distribution devices protecting the Owner’s service down through and

including all on-site services, feeders, sub-feeders, transformers and secondary main and branch circuit devices, shall be included in the Study. These shall be arranged to provide a uniform approach to the review and device coordination for the system and shall include a snap-shot/annotated One Line Diagram on each TCC sheet outlining the devices included. Provide sufficient overlap on the TCC evaluations included to demonstrate “upstream / downstream” coordination.



e. The final selection and setting of overcurrent devices shall be based on this protective

coordination study; coordinate these settings with overcurrent relays or primary fuses associated with the Power Company’s up-stream protective devices and relative devices provided by the switchgear manufacturer.

f. The EOR conducting the Study shall also coordinate ground fault protection provided in conjunction with the project where applied. Provide Time Current Characteristic (TCC) curves for all GFI equipment protection as outlined above.

g. Motor starting voltage profiles for all large motors (over 25 HP or as otherwise determined and accepted by the Owner) shall be provided based on the starter type being provided; other motors to be configured as combined loads as applicable to the application.

h. Tabulations shall include a listing of the worst-case calculated short circuit duties as a percentage of the applied device rating (automatic transfer switches, circuit breakers, fuses, etc.); the short circuit duties shall be upward-adjusted for X/R ratios that are above the device design ratings. This tabulation shall also include indication of acceptability or, in the event of a noted deficiency, provide recommended solution for corrective action.

i. Points of non-coordination shall be brought to the attention of the Owner, along with

recommendations by the EOR based on the manufacturer’s equipment involved.

j. The Study shall include all existing and new equipment as included in the Scope of Work for this assignment. The use of documentation and record information as may be provided by the Owner shall not be construed as providing all data necessary; the EOR shall be responsible to conduct or obtain field verification necessary to determine / obtain all required data in establishing the power distribution one-line diagram for the system being evaluated.

k. Submissions and approval of this study are required as outlined below in Article 1.06 of these specifications.

3. Arc Flash Hazard Analysis

a. The arc flash analysis shall include the incident energy and flash boundary calculations. 1) Unless otherwise specified or approved in writing by the Owner, the EOR shall

utilize a Working Distance of 18 inches for ALL voltage levels (low & medium voltage values); not the 18” or 24” typical distances for low voltage systems and/or 36” for medium voltage systems as otherwise permitted under NFPA-70E / IEEE.

2) Calculations shall be provided for both line and load sides of all transformers and the overcurrent protective devices served from these transformers or other separately derived sources and labeling developed to identify both Incident Energy / PPE sets of values. Equipment Arc Flash Hazard labeling to be



provided indicating both Incident Energy and PPE Levels associated with these analyses to properly identify and notify workers to the hazards present.

b. The EOR shall furnish an Arc Flash Hazard Analysis Study per the latest edition of NFPA 70E - Standard for Electrical Safety in the Workplace, reference Article 130.3 and as indicated in Annex D to these specifications.

c. The analysis shall utilize the appropriate short-circuit and clearing times associated with the over-current protective devices. Where this information is not available, alternative methods for similar devices shall be identified and submitted in the study for review and comment by the Owner.

d. The flash protection boundary and the incident energy shall be calculated at all significant locations in the electrical distribution system (I.E. transformers, switchboards, switchgear, motor-control centers, panelboards, busways and other associated power equipment) where work (including inspection activities) may be performed on energized parts. [ i.e. infrared scanning / thermal-imaging of terminations]

e. The Arc-Flash Hazard Analysis shall include all 480/277 volt locations as well as those locations associated with the 240 volt and 208 volt systems fed from transformers greater than 112.5 KVA. Where the arc- flash energy is calculated to be a value below the PPE 0 level (or 1.2 cal/cm2) of protection, the Analysis shall provide indication; however, electrical equipment shall still be labeled as part of the Work associated with this project.

f. Safe working distances shall be identified for calculated fault locations based upon a calculated arc flash boundary considering an Incident Energy level of 1.2 cal/cm2; (the distance at which the incident heat energy density would be 1.2 cal/cm2). Working distances shall be based on paragraph 3.a.1 above and in accordance with the general criteria as outlined in IEEE 1584. The calculated arc flash protection boundary shall be determined using those working distances.

g. The Arc Flash Hazard analysis shall include calculations for maximum and minimum contributions of fault current magnitude (based on the available fault- current values, not the AIC ratings of the equipment). The minimum calculation shall assume that the Utility contribution is at a minimum and shall assume a minimum motor load contribution from the Facility. Conversely, the maximum calculation shall assume a maximum contribution from the Utility and shall assume motors to be operating under full-load operating conditions. The calculations shall include all motor and other sources that can contribute to the available fault current. The Arc- Flash Hazard Analysis shall be performed utilizing mutually agreed upon facility operational conditions, and the final report shall describe, when applicable, how these conditions differ from worst-case bolted fault conditions.

h. As previously noted, Arc flash computations shall include both line and load side of “main” breaker calculations. Arc Flash calculations shall be based on actual overcurrent protective device clearing time. In general, AW does not consider the use of this IEEE Exception to be appropriate. However, where the EOR proposes using a maximum clearing time of 2 seconds (based on IEEE 1584. Appendix B.1.2), the Study Report shall include the EOR’s supplemental evaluation & documentation



regarding the physical conditions of the area, the type of equipment involved and the work tasks anticipated in making this recommendation for consideration and acceptance by the Owner. Where it is deemed not physically or readily possible to move outside of the flash protection boundary in less than 2 seconds during an arc flash event, the maximum clearing time based on the specific location shall be utilized unless otherwise proposed by the EOR through the evaluation of the area and tasks as outlined above.

i. Results of the Analysis shall be submitted in tabular form, include device or bus name, bolted fault and arcing fault current levels, flash protection boundary distances, personal-protective equipment classes and the arc flash incident energy levels determined. In addition, the Study shall include the EOR’s recommendations for possible reduction in the arc flash energy as well as other possible provisions for improving operation, maintenance and safety of personnel.

j. The Report shall also include identification of the Personnel-Protective Equipment (PPE) Classes and identify minimum PPE required for each location.

k. Arc Flash Labeling of Electrical Equipment: Provide copies of the Arc Flash Labels (Article 3.03 below) in the Report for documentation of the information being identified on the equipment in a separately tabbed section of the report. Include in this section definitions of the terms and distances outlined along with information on the various PPE equipment classifications indicated.

1.04 SHORT CIRCUIT, PROTECTIVE COORDINATION AND ARC FLASH ANALYSIS

STUDY QUALIFICATIONS

A. The short-circuit, protective device coordination and arc flash hazard analysis studies shall be conducted under the supervision and approval of a Registered Professional Electrical Engineer skilled (minimum of 10 years of demonstrated experience in conducting power systems studies; provide qualifications upon request) in performing and interpreting the power system studies. The final report, including copies of the Arc Flash Labels, shall be sealed and signed by the EOR.

1.05 ENGINEERING STUDY / REPORT SUBMISSIONS

A. Submit the following Reports for AW Engineering Review and Comment.

1. Preliminary – Report to contain field verified and annotated One-line Power Riser Distribution Diagram with OCP devices, device settings and cable feeders (conductor size/type and raceway size/type) identified.

a. As part of this Preliminary effort, consideration related to new equipment selections shall include type of device, and features needed to assure adequate withstand suitability and over-current protective features needed for protective coordination with other elements of the power distribution system and loads served. Provide initial discussion and/or indication related to proposed equipment for Owner consideration and comment.

b. Include the overall One Line Diagram along with a One Line Diagram indicating the initial short-circuit values anticipated based on Utility and simplified computer



modeling approach. This information will provide basic evaluation for the equipment short-circuit / withstand ratings initially being considered / developed.

2. Pre-Final - Provide a written response to Owner comments provided regarding Preliminary Study Report. Advance the Preliminary Report, providing all calculations associated with Short-Circuit AIC values and Equipment suitability, initially identified Protective Coordination settings, and preliminary Arc-Flash Hazard Analysis Report with proposed / typical ANSI Z535.* label information (*current edition) documentation. Where considered appropriate, this report is to be presented with a Recommendations Section (supplement to the Executive Summary) identifying any proposed modifications or other changes associated with reduction of fault current, improved protective coordination and mitigation of arc-flash energy being considered / recommended by the EOR. Preliminary PPE ratings will be clearly identified in the Report for each piece of equipment to assist in Owner’s review. Recommendations for any modifications and/or changes shall include estimated costs related to the materials, installation/construction, and design/engineering. a. Included in this Report, One Line Drawings for the overall Power Distribution Power

Riser diagram, an annotated One Line outlining the Short-Circuit ampacity values calculated, and an annotated One Line showing the Arc Flash Incident Energy and PPE Levels calculated. Each of these One Line diagrams shall be included in their appropriate Sections of the Report.

b. In addition, a copy of the One Line Diagram with the OCP devices indicated shall be included with the Protective Coordination TCC’s. Each TCC shall include the partial One Line drawing associated with the protective coordination elements being evaluated and included.

3. Final - Provide a written response to Owner comments provided regarding Pre-Final Study Report. Finalize the information associated with the Pre-Final Report; update data, settings and other appropriate information including any accepted Recommendations and/or Modifications. a. Provide three hard-copies of each submission Report as well as editable Word

electronic formatted Report document with the Final submission. Power Distribution Riser Diagrams shall be provided for all analysis configurations conducted including, but not limited to, short-circuit models for minimum and maximum operational scenarios and arc flash hazard models. Include hardcopies of equipment reports and calculations performed.

b. Submit an electronic copy of the final Arc Flash Hazard Analysis and One-line Power Riser Diagram, complete with all associated equipment databases formatted with the engineering software used and as outlined herein.

c. The report shall include the following sections:

1) Executive Summary including Introduction, Scope of Work and Results/Recommendations.

2) Short-Circuit Methodology Analysis Results and Recommendations



3) Short-Circuit Device Evaluation Table.

4) Protective Device Coordination Methodology Analysis Results and Recommendations.

5) Annotated and revised One Line Diagrams (all) as outlined in “2” above shall be provided with the Final Report.

6) Protective Device Settings Table.

7) Time-Current Coordination Graphs and Recommendations.

8) Arc Flash Hazard Methodology Analysis Results and Recommendations including the details of the incident energy and flash protection boundary calculations, along with Arc Flash boundary distances, working distances, Incident Energy levels and Personal Protection Equipment levels.

9) Arc Flash Labeling section showing types of labels to be provided. Section will contain descriptive information as well as actual copies of the label images.

10) One-line system diagram that shall be computer generated and will clearly identify individual equipment buses, bus numbers used in the short-circuit analysis, cable and bus connections between the equipment, calculated maximum short-circuit current at each bus location, device numbers used in the time-current coordination analysis, and other information pertinent to the computer analysis.

4. Upon acceptance of the Final Report, provide labeling of the power distribution equipment in accordance with ANSI Z535.4– Product Safety Signs and Labels; label size to be 4” x 6”. Labels to be provided as outlined in Article 3.03 below. Label materials furnished to be suitable for either the interior or exterior locations where they are to be applied; provide samples for review and approval by the Owner along with data sheets from the Manufacturer outlining these applications.

1.06 COMPUTER ANALYSIS SOFTWARE

A. The studies shall be performed using ETAP power systems software as provided by OTI, or

SKM Systems Analysis Power Tools for Windows (PTW) software program.

B. Provide a final electronic file copy of all data, reports and the One Line Diagram in electronic engineering database (ETAP or SKM) format to the Owner prior to final acceptance of the Project. This information is to be validated by the EOR as representing “As-Built” conditions including all over-current protective devices and their settings, feeder conductors and raceway information and load data; including inductive, resistive and combination loads. The files shall contain all Reports (in Microsoft Word and in Adobe PDF) conducted including Short-Circuit evaluations, Protective Coordination and Load Flow Studies as well as the Arc Flash analysis values determined copies of the Arc Flash labels. The EOR for the Study shall attest to this validation in writing when submitting the final electronic copy of the project. The electronic file copy of all data shall be provided on a USB thumb drive.

PART 2 – PRODUCTS - Not Applicable


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 PART 3 – EXECUTION

3.01 FIELD INVESTIGATION / DATA COLLECTION

A. Continuity of Service

1. If any service or system must be interrupted, the Contractor / Engineer shall request

permission in writing stating the date, time, etc. the same will be interrupted and the areas affected. This request shall be made in sufficient time (approximately 1 week minimum in advance) for proper arrangements to be made. Written permission shall be obtained from the Owner before any interruption to electrical power is permitted.

B. Lock-Out / Tag-Out Procedures

1. The Contractor shall provide his own lock-out / tag-out equipment in coordination with

the Owner’s program; coordinate with the Owner’s field operational and maintenance staff.

2. The Contractor shall have in effect a written safety program that includes a lock-out / tag- out safety program in accordance with OHSA under Part 1910, Subpart S.

C. Electrical Safety Program 1. The Contractor shall review the Owner’s Electrical Safety Program and take the

necessary precautions, in conjunction with his own safety program for employee protection.

2. The Contractor is to have in effect a written electrical safety program that includes all applicable provisions of the NFPA-70E which has been adopted by OHSA under Park 1910, Subpart S.

D. The Contractor shall provide written documentation indicating that his employees, those working on American Water projects, have been trained and certified on all provisions applicable to B and C above upon request from the Water Company.

E. The Contractor’s employees shall follow all provisions of Band C above including, but not

limited to, the use of personal protective equipment (PPE), establish protective barriers, approach boundaries and documentation for such activities. Provide a written statement attesting to the above requirements prior to the start of the Field Investigation / Data Collection activities.

3.02 FIELD ADJUSTMENT

A. The Contractor shall adjust protective devices settings based on the final accepted Study/Report

provided by the Engineer; settings to be listed in a table format and submitted as part of the final O&M Manual for the equipment / system.

3.03 ARC FLASH WARNING LABELS

A. The electrical equipment supplier or independent study engineer shall provide an ANSI Z535.4

compliant (size 4 in. x 6 in.) thermal transfer type two color die-cut arc flash label as provided



by DuraLabel or Brady for each work location analyzed and included in this project. Material type to be suitable for the locations; IE indoor, outdoor, chemical resistively, etc.

B. If the equipment will be energized prior to the application of the final labels, provide temporary labels until the final labels are applied. Temporary labels do not need to be of the materials specified above. Temporary labels shall be suitable for the environment (example 110 pound paper or 30 pound paper in a plastic “page protector”). [Note: label information to meet required criteria outlined herein for permanent labeling. Once final labels are available, remove temporary labeling and provide permanent labels as indicated.]

C. The label shall have either an orange header with the wording, “WARNING, ARC FLASH HAZARD”, or a red header with the wording, “DANGER, ARC FLASH HAZARD”. The Danger signal wording shall be provided for all incident energy values calculated greater than 40 cal/cm2; Warning to be used for all values calculated below 40 cal/cm2. These labels shall include the following information:

1. Location designation

2. Nominal voltage 3. Flash protection boundary

4. Hazard risk category including PPE Classification

5. Available Fault Current at this equipment location (SS Value from study)

6. Incident energy

7. Working distance

8. Engineer, report number, revision number and issue date

D. Labels shall be machine printed, with no field markings

E. Arc flash labels shall be provided in the following manner and all labels shall be based on recommended over-current device settings. Coordinate the data provided with the Arc Flash Study results and the ANSI labeling requirements. Quantities outlined below are considered minimum quantities necessary; provide additional labeling as may be required by Regulatory or Inspection Agencies at no additional cost to the project.

1. For each transformer, 480 and applicable 240 and/or 208 volt panelboard, individually- mounted circuit breaker and safety disconnect device, one arc flash label shall be provided

2. For each low voltage switchboard, one arc flash label shall be provided (see footnote below).

3. For each motor power terminal box, 25 horsepower and larger, one arc flash label shall be provided

4. General Use Safety labels shall be installed on equipment in coordination with the Arc Flash labels. The General Use Safety labels shall warn of general electrical hazards



associated with shock, arc flash, and explosions, and instruct workers to turn off power prior to work.

F. Refer to the Appendix to this Section for examples of required labels.

G. Labels shall be field installed by the (Contractor or Engineer) at the conclusion of the project after acceptance by the Owner.

H. Provide written maintenance procedures and guidelines in accordance with NFPA-70E; Latest Edition

END OF SECTION



SECTION 16216 DIESEL ENGINE DRIVEN GENERATOR

PART 1 GENERAL

1.01 SCOPE OF WORK

A. Furnish all labor, materials and equipment and incidentals, and install one skid mounted diesel engine driven standby generator unit and required supporting systems in a factory type skin tight weatherproof sound attenuating enclosure with a separately mounted day tank as specified herein. Require the manufacturer or manufacturer’s representative to furnish installation technical assistance, start-up operation, field testing, operator training, first year service contract, and operation and maintenance manuals.

B. The engine driven generator shall have a stand-by power rating (site rated) of not less than 100 kVA, 80 kW, at 80 percent lagging power factor, with 480 Volt, three phase, 60 Hertz output. The alternator shall be three wire, grounded wye connected, complete with excitation system and controls. The generator shall be EPA certified Tier 3 for Stationary Emergency Application.

C. Arrange the generator for automatic starting and stopping and load transfer upon failure of the normal source of power. Closed transition and parallel operation with the Electric Utility Company is not required. Transfer of generator power to and from connected facility electrical load will be open transition transfer.

D. All equipment and controls specified in this Section shall be new and be considered part of the engine driven generator package. The generator manufacturer or his/her licensee shall furnish the generator package in its entirety as specified. The engine driven generator package shall be complete and shall include all equipment and controls necessary for a fully operational standby electric power supply.

E. Furnish the following for each unit:

1. Automatic transfer switch.

2. Break-glass emergency station.

3. Four-stroke-cycle diesel engine with attached alternator.

4. Generator main circuit breaker.

5. Unit mounted radiator with engine driven fan, for cooling of the engine jacket water including engine mounted and engine driven circulating pump. Include all required ductwork for the radiator.

6. Entire exhaust system including catalyst (if required to meet EPA emissions), silencer, flexible connection, exhaust pipe, and pipe supports mounted inside the enclosure.

7. Fuel system piping, appurtenances and accessories including a separately mounted day tank, fuel filter, fill port with overspill containment, etc.

8. Skid mounted factory-piping, wiring and valves.

Public Transportation Facility Diesel Engine Driven Generator City of Key West, Florida 16216 - 1


9. Flexible connectors and/or expansion joints for field piping connections to the generator unit.

10. Factory manufactured weatherproof, sound attenuating, skintight enclosure for outdoor installation of the generator set equipment.

11. Combination engine/alternator instrument and control panel wired, tested and shock mounted at the alternator end of the unit.

12. Engine mounted electric starter with battery, battery cables and battery charger.

13. Generator structural steel base including neoprene pad type vibration isolators.

F. Provide the services of the generator manufacturer's representative for delivery, installation, technical support, set-up, start-up testing, and training of the Owner’s personnel.

1.02 SUBMITTALS

A. Submit shop drawings and product data to establish compliance with this section, including the following:

1. Shop drawings, catalog cuts, brochures, and other materials required to completely describe the systems and equipment.

2. Assembly drawings with identification, description, and dimensions of each separately installed sub-assembly or piece of equipment and associated piping connection schematics.

3. Certificate of Compliance for Seismic Design of Non-Structural Components and Systems in accordance with ASCE 7, Section 13 and the IBC, for the generator assembly, enclosure, and accessory components attached to the generator assembly and enclosure, demonstrating that the equipment and its mounting system and anchorage have been tested or analyzed to withstand specified seismic demands.

4. Equipment base drawings indicating the size and location of bolt holes for mounting and anchorage, and location of conduit stub-ups.

a. Details of anchorage of the equipment to the foundation including anchor bolt type,

size, material, embedment depth, and minimum edge distance. b. Summary of maximum vertical and horizontal reactions at each anchor bolt

considering all applicable loads and load combinations.

5. Performance specifications of all items of equipment.

6. Description of the generator control panel showing panel layout, location, functional description, features, and options.

7. Internal electrical, instrumentation, control, and wiring diagrams.

8. Identification of all wiring connections to external systems and equipment, including numbered terminal strip identification.



9. Details of the proposed battery charger and starting battery, including cold cranking amps and ampere hour rating.

10. Information on the proposed generator set engine jacket water treatment chemicals and generator starting battery electrolyte, including Material Safety Data Sheets.

11. The manufacturer, model, size, attenuation curve, and design back pressure for the silencing equipment as offered to accomplish the specified sound silencing for this installation.

12. Details of the main generator circuit breaker showing location, dimensions, ratings, time current (TC) trip curves and enclosure details.

13. Details of the catalytic system for engine emissions control showing the manufacturer, manufacturer’s experience, construction of the catalytic unit, and catalyst performance data if required to assure that the exhaust emissions of the generator unit are in accordance with the specification limitations.

14. Details of the jacket water heater and jacket water treatment.

15. Load analysis utilizing the loads as specified herein, to demonstrate that the proposed unit will start and carry the specified loads.

16. Alternator rating data sheet showing the alternator selection of frame size, output rating, efficiency, temperature rise, windings, reactances, resistances, full load current, and full load heat rejection.

17. Copy of EPA Certificate of Conformity of engine emissions in accordance with 40 CFR 89 and 40 CFR 1039.

18. Description of the factory manufactured, weather protected, sound attenuating enclosure including dimensions, materials and methods of construction, conformance to standards, description of all accessories and components, color charts of available colors, and enclosure circuit wiring diagrams.

19. Details of the arrangement of the exhaust piping system within the enclosure.

20. Statement certifying the maximum combined noise level from the engine exhaust and the mechanical noise from the enclosure when the generator unit is operating at full rated standby load, stated in dbA at 50 feet from the unit in any direction.

21. Manufacturer’s certified shop test record of the engine driven generator unit performed in accordance with specifications.

22. Draft copy of the written service contract specified herein.

23. Draft copy of the warranty specified herein.

B. Submit responses to the following:

1. Engine Data



a. Manufacturer b. Model c. Number and arrangement of cylinders d. RPM e. Bore x stroke (inches) f. Maximum power at rated rpm (brake horsepower) g. Brake Mean Effective Pressure (BMEP) at rated kilowatt output (including any

parasitic loads and alternator efficiency)(psi) h. Piston speed (feet per minute) i. Make and model of governor j. Make and model of overspeed shutdown device. k. Engine cold cranking amperes

2. Alternator Data a. Manufacturer b. Model c. Rated kVA d. Rated kW e. Voltage f. Rated Amperes g. Power Factor h. Temperature rise above 40 degrees C ambient

1) Stator by thermometer (degrees C) 2) Field by resistance (degrees C)

i. Class of insulation j. Alternator efficiency including excitation losses and at 80 percent power factor

1) Full load (percent) 2) Three-quarters load (percent) 3) Half load (percent)

k. Subtransient reactance (xd”)(per unit) or (ohms)

3. Guaranteed fuel consumption rate (at generator terminals with natural gas fuel @ 905 BTU/cubic foot low heat value) a. Full load (gal per hour) b. Three-quarters load (gal per hour) c. Half load (gal per hour)

4. Generator unit and accessories a. Weight of skid mounted unit (pounds) b. Overall length (inches) c. Overall width (inches) d. Overall height (inches) e. Exhaust pipe size (inches)

5. Enclosure a. Total weight of enclosure and generator (pounds) b. Length (inches) c. Width (inches) d. Height (inches)

6. Exhaust gas emissions data, maximum values at loads varying from full to 1/4 load:



a. Temperature (degrees F) b. Flow (ACFM) c. Carbon Monoxide (CO) (grams/BHP-hr) d. Nitrogen Oxides (NOx) (grams/BHP-hr) e. Hydrocarbons (HC) (grams/BHP-hr) f. Sulfur Dioxide (SO2) (grams/BHP-hr) g. Based on ___ percent sulfur content by weight in the fuel.

7. Radiator fan cooling air volume (CFM)

8. Radiator fan power (BHP)

9. Radiator fan pressure rise (inches water column)

10. Combustion air volume (CFM)

11. Full load heat rejection to enclosure by engine and alternator (BTU/min)

12. Full load heat rejection to engine coolant (BTU/min)

13. Nominal cold cranking ampere rating of the starting battery


A. Design, manufacture, and assembly of elements of the equipment herein specified shall be in accordance with published standards of the following:

1. American Gear Manufacturers Association (AGMA)

2. American Institute of Steel Construction (AISC)

3. American Iron and Steel Institute (AISI)

4. American National Standards Institute (ANSI)

5. American Petroleum Institute (API)

6. American Society of Civil Engineers (ASCE)

7. American Society of Mechanical Engineers (ASME)

8. American Society for Testing and Materials (ASTM)

9. American Welding Society (AWS)

10. American Bearing Manufacturers Association (ABMA)

11. Factory Mutual Engineering and Research Corp. (FM)

12. Institute of Electrical and Electronics Engineers (IEEE)

13. Instrument Society of America (ISA)



14. International Building Code (IBC)

15. International Standards Organization (ISO)

16. National Electrical Code (NEC)

17. National Electrical Manufacturers Association (NEMA)

18. National Fire Protection Association (NFPA)

19. Occupational Safety and Health Administration (OSHA)

20. Society of Automotive Engineers (SAE)

21. The Society for Protective Coatings (SPC)

22. Underwriters Laboratories (UL)

B. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.


A. Build the generator from components that are coordinated and prototype tested to operate as a unit. The manufacturer shall maintain a permanent service organization and supply of spare parts in place at the time of the bid within 100 miles of the project site.

B. Design and build the unit in accordance with NFPA 110, Standard for Emergency and Standby Power Systems, Level 1, Type 10; NFPA 37, Standard for Installation and Use of Stationary Combustion Engines and Gas Turbines; and NEC 701, Legally Required Standby Systems. Build and certify the unit construction is in accordance with UL 2200, Stationary Engine Generator Assemblies.

C. The load on the standby generator may include motors started on solid state starters that represent up to 90% percent of the generator’s standby rating. Coordinate design of the generator and its voltage regulation system with the supplier of the solid state starters and other non-linear devices to assure that sufficient alternator reactance is provided to limit the line harmonics to acceptable levels as specified in IEEE Standard 519 and to assure that the voltage regulation system will provide stable operation in the presence of such harmonics.

D. The unit shall be of such physical dimensions to fit into the space provided as indicated on the Drawings.

E. Should equipment that differs from the equipment described in this section be offered and determined to be equal to that specified such equipment shall be acceptable only on the basis that any revisions in the design and/or construction of the structure, piping, appurtenant equipment, electrical work, etc., required to accommodate such a substitution shall be made at no additional cost to the Owner and be as approved by the Engineer. Modifications required to accommodate product substitutions shall not extend the contract time.



F. Design and build the engine driven generator for standby service at all points within the specified range of operation, without overheating or excessive vibration or strain. Components shall require only that degree of maintenance as applicable to the specific type of equipment. Design and build all parts and components for interchangeability so that replacement parts may be installed without additional fitting or machining.

G. Furnish the services of a factory trained service technician, specifically trained on the type of equipment specified. Submit qualifications of the service technician for approval. The service technician shall be present on–site for a total of one man-day, exclusive of travel time, to perform equipment check-out, leveling and alignment, coordination of electrical and gas piping field connections, start-up, testing, and calibration of the unit.

1.05 SERVICE CONTRACT

A. Provide to the Owner at the time of acceptance of the unit a written 1 year service contract for the engine driven generator and support systems, as furnished, commencing on the date of acceptance of the unit. Include all costs associated with the service contract in the price bid and furnish a copy of this contract to the Owner at the time of acceptance. This service contract does not supersede or replace the manufacturer’s equipment warranty as specified herein.

1. The service contract shall include inspections of the installation and performance of the manufacturer’s recommended preventive maintenance to assure the safe and dependable operation for the standby power system throughout the first year of operation for standby service with up to 300 hours per year of operation.

2. The preventive maintenance shall include all maintenance service at the recommended service intervals as published in the manufacturer’s literature, and as required to maintain the equipment warranty in full effect. The service contract shall include as a minimum an inspection to sample and analyze lubricating oil; change lubricating oil and filters; check/replace air filters; check belts; sample and analyze coolant; check coolant level and condition, inspect governor and control system; check heaters; inspect fuel supply system, exhaust system, starting battery, battery charger, and battery charging alternator; check and adjust output voltage and frequency; and operate the unit to confirm proper operation.

1.06 WARRANTY

A. Furnish a written five year (60 months) extended warranty from the equipment manufacturer to the Owner, on all defects in material, parts or workmanship of the generator set equipment furnished under this Section when operated as a standby unit for up to 300 hours per year. The warranty shall extend from the date of acceptance of the equipment and shall include all parts, labor, and transportation for replacing any defective components of the equipment as furnished.

1.07 MAINTENANCE

A. Submit operating and maintenance instructions covering all equipment furnished under this Section. Prepare the instructions specifically for this installation and include all required cuts, drawings, equipment lists, descriptions, etc., that are required to instruct operating and maintenance personnel unfamiliar with such equipment.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 1.08 UNIT PERFORMANCE

A. The voltage regulation shall be within plus or minus one percent from zero load to full rated load. Upon application or removal of full rated load in one step, the transient voltage, and recovery to steady state operation shall be within five (5) seconds.

B. The unit rating shall not be less than 80 kW. Provide an oversized alternator or enhanced voltage regulator as required for motor starting and to carry non-linear loads. The specified unit site rating is the minimum acceptable for the specified loads, and shall be increased if required to meet the load starting or running requirements as specified herein.

C. The engine driven generator set and all of its components shall provide stable operation under all operating conditions that the station load may impose.

D. Under steady load conditions, from zero load to full-rated load, voltage regulation shall be within plus or minus one percent, and frequency regulation shall be within plus or minus 0.25 percent (0.15 Hertz).

E. Upon application or removal of full rated resistive load in one step, the transient voltage dip or overshoot shall not exceed 25 percent of rated voltage and recovery to steady state operation shall be within ten seconds.


A. All mechanical and electrical equipment shall be coated, wrapped and otherwise protected from snow, rain, drippings of any sort, dust, dirt, mud, flood and condensed water vapor during shipment and while installed in place during construction. The protective coverings shall remain in place until the work areas are substantially free of all construction dust and debris.

B. Package and crate the unit for shipment and provide treatment for long periods of storage.


A. House the complete engine driven generator unit in a factory type skin tight weatherproof sound attenuating enclosure for outdoor installation. Arrange the unit for automatic operation and for positive and successful quick starting at a minus 20 deg. C outdoor ambient temperature. Design all equipment housed within the generator enclosure for a maximum operating temperature based upon a maximum ambient temperature of 40 deg. C plus the temperature rise that will occur within the enclosure either during generator operation or with maximum solar heating when the generator is not in operation. Factory assemble the generator unit with enclosure and accessories as specified herein, ready for installation on a concrete foundation with available connection for electric and gas supply pipe. The unit shall not require field assembly.

B. The engine driven generator unit within its enclosure, in combination with the engine exhaust silencer, with the generator in operation at full load, shall have a sound pressure level of not more than 70 dbA measured at a distance of 50 feet from the enclosure in any horizontal direction. There shall be no pure tone. It shall be the responsibility of the engine driven generator unit manufacturer to choose the engine exhaust silencer and the sound attenuating properties of the enclosure to meet these criteria.

C. The altitude at the project site will not be in excess of 500 feet above sea level.



D. The heat sink for rejection of heat from the engine jacket shall be a unit mounted radiator utilizing an engine mounted and engine driven fan to discharge air through the radiator and through a louver to outdoors. Design the radiator and engine fan to dissipate all required heat loads with the generator running at full rated output and with 40 deg. C ambient outdoor air. No other source of cooling as available or will be permitted.

E. Certify engine exhaust emissions in compliance with EPA Designation Emissions Standard under the provisions of 40 CFR 1039, CONTROL OF EMISSIONS FROM NEW AND IN-USE NONROAD COMPRESSION-IGNITION ENGINES, 40 CFR 60.4202, and 40 CFR 89.112 as they apply to non-road stationary emergency engines. Design the engine and fuel control system to limit the exhaust emissions of the engine to the limits imposed by these regulations.

F. Design and build all non-building structures and provide seismic restraint of nonstructural components to withstand seismic demands to provide post seismic event functionality in accordance with ASCE 7, Section 13 and the IBC.

G. Design the enclosure base and attachment to the concrete foundation to support the gravity loads, dynamic loads, wind loads and seismic forces to conform to ASCE 7, Section 13 and the IBC. Furnish and install anchorage in accordance with the manufacturer’s requirements, sized and quantity as determined by the anchorage calculations required in this Section.

H. Enclosure exterior length and width shall fit in the space available on site.

PART 2 PRODUCTS

2.01 GENERAL

A. The engine generator set shall be a factory assembled unit, specifically designed and equipped for operation on No.2 ultra-low sulfur diesel fuel oil, and shall be manufactured by Caterpillar/Olympian, Cummins/Onan, Generac, Baldor or Kohler. The engine and generator shall be directly connected with a semi flexible steel coupling, shall be free from injurious torsional or other vibration and shall be vibro mounted with a heavy steel sub base. The diesel engine shall be vertical in-line, or V-type, single block, four stroke cycle, turbo charged with intercooler using engine jacket water, full diesel, mechanical injection, arranged for direct connection to an alternating current generator. The unit shall operate at a rotational speed of not more than 1800 rpm and shall develop its full KW rating including radiator fan power. Units offered at ratings in excess of their published ratings are not acceptable and will not be approved.

B. The engine shall be rigid, neat in appearance and shall allow easy access to the various parts for maintenance purposes. The bedplate and frame shall be of heavy construction. All parts shall be properly enclosed to prevent the throwing or dripping of oil.

C. The engine generator set shall be pre piped and pre wired insofar as possible. Separate pre wired terminal boxes shall be provided on the engine generator skid for A.C. and D.C. wiring.

D. The rating of the generator set shall not exceed the Manufacturer's published standby rating. The gross engine horsepower required to produce the standby rating shall not exceed the Manufacturer's published continuous duty rating by more than 135 percent. Continuous duty rating shall be as defined by BS649 or DIN6270 but in no case shall it exceed the



Manufacturer's published continuous duty rating for the engine as used in continuous pump drive applications. The gross engine horsepower described above shall include all parasitic demands such as generator inefficiencies, fuel pumps, water pumps, radiator fan (for fan cooled models) and all accessories necessary to the unit's proper condition while operating at rated load and at a rotational speed not to exceed 1800 rpm.

E. Mount the close coupled engine and alternator assembly on a rigid, welded, fabricated steel base, sized to maintain the correct alignment of all system components. Fabricate the base of steel I-beam, channel, or box section, braced and reinforced as required to maintain alignment between the engine and the alternator. Mount the engine-alternator assembly on the base utilizing rubber pad type vibration isolators and felt washers. Mount the engine radiator and battery support separately on the base, independent of the engine-alternator assembly. The complete generator unit shall be free from harmful torsional or excessive vibration during all ranges of generator set operation, from no load to full load. Shop prime and finish paint all exposed surfaces of the structural steel members of the fabricated base frame in accordance with the manufacturer’s standard practice.

2.02 ENGINE

A. The engine shall be capable of withstanding a 10 percent overload for two hours out of every 24 hours without harmful detonation, overheating or other evidence of distress.

B. The complete engine generator unit shall be free from harmful torsional or other vibration throughout the entire operation range of speed and load.

2.03 SYSTEMS

A. Governor

1. The governor actuator shall be electronic type, DC motor driven, capable of maintaining isochronous regulation from no load to full rated load within 0.25 percent of rated frequency.

2. The governor controller shall be all electric, mounted in the generator control panel. The governor controller shall have the capability for manual adjustment of speed setting, speed droop, and load limit. Speed droop shall be adjustable from zero to five percent from no load to full load. The governor controller shall not cause electromagnetic interference.

3. The governor actuator and the governor controller shall be as manufactured by Woodward Governor Co., Barber Coleman, or equal, and shall operate on the direct current voltage from the engine starting battery.

4. Furnish a separate overspeed shutdown device that shall instantly stop the engine in case of preset overspeed or the operation of various protective devices as later specified.

B. Supporting Structure

1. The diesel engine generator shall be directly bolted, doweled, and aligned on a rigid, fabricated steel base, suitably sized to maintain the correct alignment, supported by Korfund vibration isolators, anchored to the level surface of a concrete pad.



C. Air Intake System

1. The engine shall be equipped with suitably sized dry type air intake filter(s) to protect working parts of the engine from dirt and grit with replaceable type filter element. In line air inlet silencers shall be provided between the turbocharger and the air inlet filter. A crankcase breather shall be included.

D. Lubrication System

1. The engine shall be provided with a full pressure lubricating oil system arranged to cool the pistons and to distribute oil to all moving parts of the engine including the turbocharger bearings and including full flow filter of the replaceable element type and a suitably sized shell and tube type oil cooler and an AMOT or equal automatic temperature regulator. An engine driven lubricating oil circulating pump shall be provided for the engine. This pump shall be of the positive displacement type, and shall have ample capacity to circulate the amount of lubricating oil and cooling oil required by the engine and turbocharger. The engine shall be provided with a sump type crankcase arrangement of sufficient capacity to suit the requirements of the engine.

E. Fuel Oil System

1. Furnish a heavy gauge steel, 25 gallon day service tank, installed separately, but provided with the generator. Day service tank shall be a UL 142 listed, vaulted double-wall tank suitable for outdoor use, with fuel transfer pumping and control system.

2. The Generator manufacturer shall coordinate with the day tank supplier to provide all necessary additional, pumps, fuel oil coolers, etc. as required for a complete fuel system. All necessary fuel and vent lines for proper engine performance shall be provided as well as means to readily detect the fuel level in the tank without the use of a measuring stick. Coordination with fuel piping and above ground fuel storage tank equipment installed shall be the responsibility of the generator manufacturer.

3. All fuel and vent piping and fitting shall be Schedule 80 black steel in conformance with ASTM A53 and ANSI B31.3 with 125 lb. threaded malleable iron fittings conforming to ANSI B16.3 and ANSI B31.3. All flexible piping at tank and equipment connections shall be constructed of a seamless flexible plastic liner with corrosion resistant type 316 stainless steel wire braid reinforced cover, stainless steel collars, and ductile iron fittings.

4. The day service tank shall be a Simplex Model SST, or equal, complete with fuel supply and return pumps. The supply pump shall be 120 volt, single phase, 1/3 HP motor driven, 6 gpm bronze gear fuel oil pump. Return pump shall be 120 volt, single phase, 1/3 HP (minimum) motor driven bronze gear fuel oil pump adequately sized to return fuel to the above ground fuel storage tank. The day tank shall include but not necessarily limited to fuel level gauge, heavy duty float switch to automatically maintain the proper fuel level, four 1-inch sized for a flow not less than 150 percent of the motor driven fuel supply pump, a removable top cover, a rotary manually operated priming pump with check valve, a solenoid operated fuel valve with manually operated bypass, a critical low fuel alarm/engine shutdown float switch with separate float at switch for remote annunciation, and a manually operated fuel shutoff valve.



5. The day tank controller shall be a UL 508 Listed, integrated design, digital level controller shall be supplied which provides differential level control for activation of pumps, duplex pump alternator, tank level indication, system alarms and manual operating controls. Level controller shall be self-contained as a unit within a NEMA 4 enclosure integral with the day tank assembly. Day tank controller shall be PLC based with 6-inch, color, touch-panel operator interface. Day tank controller shall include the following features:

a. Dual level sensor input including a 4-20mA continuous sensor, analog-to-digital

input, and point sensing float switches: low, refill start, refill stop, high, checkpoint for automatic cross check of sensors.

b. Leak sensor.

c. Spare I/O for options and design-build features.

d. MODBUS and Ethernet network compatible.

e. 4-20mA loop output for tank level.

f. Operator touch-panel interface functions:

1) HOA switch 2) Test 3) Reset 4) Alarm silence 5) Numeric display of tank level in gallons (liters) 6) Graphic condition display of tank level and pump/status/alarm condition 7) Message indicators for status and alarm, including: 8) Normal operation 9) Pump running (fill, return, single or multiple pumps) 10) Tank filling 11) Loss of flow 12) Low 13) Critical low 14) High 15) Critical high 16) Leak 17) Not in auto 18) Controller failure with specific message 19) Other messages as determined by design-build option configuration

g. Relay dry contact outputs for the following (5A, SPDT): 1) Low alarms 2) High alarms 3) Leak 4) Not in auto 5) Other alarms as determined by design-build option configuration:

6. The motor driven fuel supply pump shall discharge through a series filtration system, consisting of a 10 micron particle removal cartridge, followed by a water separation cartridge, into the day service tank. A 2-inch diameter differential pressure gauge with 0-



15 psig scale and adjustable alarm switch shall be installed across the filters. Suitably sized isolating valves, pipe and fittings shall be provided for bypassing the filters when replacing filter cartridges during the operation of the engine. A relief valve, set to open at 14 psig shall be furnished and installed upstream of the filters and arranged to discharge into the day service fuel tank as shown on the drawings. The twin element cartridge housing shall be Cuno Model 1B1-40292-11, or equal, with a Cuno Model C78C8, or equal, Micro-Klean cartridge nominal 10 micron particle and a Aquacon Model AC21005, or equal, cartridge for water separation.

7. The day tank shall be epoxy coated inside, rust-proofed and finish painted outside medium gray or color of Owner's choice, with removable gasketed inspection plate, all plumbing and wiring pre-connected, UL listed label with all appurtenances to provide a complete system and as further described on the Drawings.

8. An engine driven fuel pump, taking its suction from the day tank shall deliver the fuel oil to the engine injection system through a duplex oil filter of the replaceable element type. The excess fuel supplied to the engine shall be returned to the main fuel tank.

9. The fuel piping between the day service tank and the engine shall be as specified in Plumbing Drawings and of a size recommended by the engine manufacturer and shall include flexible hose connections in both the supply and return piping. A Preferred or equal 1-inch size Fusomatic valve shall be installed in the engine suction supply line between the day tank and the diesel engine.

10. All parts of the fuel system shall meet the approval of, and be installed in complete compliance with, all applicable local, state and federal codes, laws and regulations.

F. Radiator Cooling System

1. The engine shall be radiator cooled with a blower or pusher type fan mechanically driven by the engine. The fan shall provide a static pressure rise of not less than 0.5 inches of water in addition to the losses through the radiator, to move the required air flow through the intake louver and discharge plenum and louver to provide the cooling required by the unit. The radiator shall incorporate flanges for attachment of a flexible duct connection to the exhaust plenum. Provide guards for fan, belts, and hot surfaces in accordance with OSHA regulations and UL 2200. The cooling system shall be adequate for cooling the engine at full rated load with an outdoor ambient temperature of 40 degrees C plus the temperature rise corresponding to the heat given off by the alternator and equipment hot surfaces. Provide a coolant low level switch in the radiator top tank, wired to the low coolant alarm on the generator control panel.

2. Furnish an engine driven, centrifugal coolant pump equipped with a mechanical seal to circulate the coolant through the engine and radiator. Provide an automatic temperature regulator for the engine coolant that will maintain pre-set temperature without restricting the rates of flow of coolant through the engine.

3. Coolant shall be for use in ambient temperatures which may range from -20 to 40 degrees C, and shall be a 50 percent ethylene glycol antifreeze solution conforming to ASTM D-4985 and D-5345. The coolant shall be premixed extended life type and shall contain additives as recommended by the engine manufacturer for the prevention of both scale formation and corrosion in the engine water jackets and cooling system components that



are in contact with the engine coolant. Coolant with additives shall be as manufactured by the NALCO Chemical Company, Dow Chemical, Aqua Laboratory, or approved equal.

4. Provide an engine mounted thermostatically controlled heater for the engine coolant system to maintain not less than 32 degrees C in the engine jacket to assure quick start and load transfer with an ambient temperature of -20 degrees C. The heater shall include valves or quick disconnects to allow isolation and removal of the heater without draining the engine cooling system. The heater shall have a minimum rating of 1000 watts when operated on a 120 Volt AC single phase power supply. Provide a grounded plug to connect to a 120 Volt AC receptacle.

5. Provide a valved drain on the cooling system piped to the exterior of the enclosure. Provide flexible connectors at all connections of off-skid piping to the engine.

G. Electric (Battery) Starting System

1. Provide an engine mounted, 12 Volt DC solenoid shift electric starter capable of withstanding four, consecutive cranking periods of fifteen seconds cranking each separated by fifteen seconds of rest.

2. The starting battery shall be low maintenance, long life, lead acid type, especially designed for spark ignited engine cranking service. Battery shall be of a capacity as recommended by the battery manufacturer for the necessary break-away current, cold cranking amperes, and ampere hour capacity for four consecutive cranking periods of fifteen seconds each, or for sixty seconds of continuous cranking without being recharged and with a battery temperature of ten degrees C and with the engine jacket maintained at 30 degrees C. The battery shall be manufactured by Delco, Exide, Caterpillar or equal.

3. Furnish a skid mounted battery box specifically designed for battery service. Furnish full insulated battery covers. Furnish and install battery cables with terminals and connections for connecting the battery to the electric starter. Furnish all connectors and hardware, cables, grease, and lifting device.

4. Furnish an automatic battery charger for charging the starting battery. The charger shall be UL listed, solid state, electronic, fully automatic, float/equalize-type. The battery charger shall have automatic voltage sensing determined by the state of the battery and reducing to milliamp current on fully charged battery. Charger shall be for 120 volt, single phase, 60 Hertz alternating current input, with not less than 5 Amperes D.C. output capacity. Arrange the charger for wall mounting inside the generator enclosure. The battery charger shall provide control power to the generator control panel when the generator is not running with correct voltage and current output to provide proper battery charge rate for maximum battery life and control panel power requirements.

5. Provide an automatic thermostatically controlled battery pad heater rated 120 Volt, single phase power supply to maintain the battery temperature at a minimum of 10 degrees C when the ambient temperature is -20 degrees C. The heater shall automatically shut off when the battery temperature attains 30 degrees C. Provide a grounded plug to connect to a 120 Volt receptacle.

H. Exhaust System



1. A high degree exhaust silencer, Maxim Model M51, Donaldson Model DRU, or equal, for critical residential (hospital) type silencing, shall be installed. The exhaust pipe shall be Type 302 with wall thickness of 0.250-in, stainless steel with flanged fittings and of the size recommended by the engine manufacturer. Suitable stainless steel bellows expansion joints shall be provided and installed where required to provide for expansion of the pipe caused by a 1000 degree F temperature change. The exhaust line shall be connected to the engine by a suitable section of flexible stainless steel metal exhaust hose as recommended by the engine manufacturer as suitable for the maximum temperature condition which may be encountered. All exhaust line elbows shall be long radius. Provision for installation of smoke density monitoring equipment shall be made as indicated on the Drawings.

2. Furnish and install suitable equipment for the engine exhaust to attenuate the sum of the octave bank levels converted to A-weighted sound pressure levels to not be in excess of 75 dBA at a distance of 50-ft in any direction from the point of discharge to the atmosphere.

3. For the exhaust there shall be included the attenuation curve for the silencing equipment as offered to accomplish the required results of this installation.

4. Octave band sound pressure level readings shall be taken and recorded at the time of the onsite field test and to be acceptable must be within the limits permitted by this Specification.

5. If changes are necessary to accomplish the required exhaust silencing, the Contractor shall furnish a revised exhaust arrangement drawing, which must be approved by the Engineer.

6. The entire exhaust system shall be installed in the field, except the flexible section, but including the exhaust silencer and shall be covered with insulation of a non-combustible type and jacketed with an aluminum jacket. The insulation shall be 4-in thick, Fibrex FBX-MF 1200 pipe insulation, or equal, held in place with stainless steel banding and covered with a 0.016 or 0.020-in aluminum jacket, secured with screws and jacketing lapped a minimum of 3-in. The aluminum jacket shall be separately applied at the job site. Fittings and flanges shall be insulated with MF pipe covering material cut to fit. No asbestos or asbestos bearing products be used. Flexible sections of the exhaust systems shall be protected by a suitable metal guard to prevent personal injury from a burn if in contact with bare flesh. Include all required steel support framing and hanger bands for mounting of the silencer to the overhead concrete structure.

7. Furnish and install the complete exhaust system, including silencer, flanged piping with a single (sleeve) stainless steel thimble through wall designed to accommodate the required 4-in thick insulation and the complete supporting system. The exhaust pipe shall be directed vertically by means of long radius elbow, terminating with a 316 stainless steel counterbalance rain cap with bronze bushings equal to Rain Fighter Systems Inc., Shreveport, LA.

8. A suitable drain with valve shall be installed at the low point of the exhaust line. The thimble sleeves shall be sealed with an approved compound. The entire installation shall meet with the Engineer's approval.

9. It is the intent of this specification to provide complete compliance with all applicable local, State and Federal codes, laws and regulations.



I. Miscellaneous Equipment and Requirements

1. Heaters

a. Automatic thermostatically controlled heaters, rated 208 volt, single phase, shall be provided to maintain not less than 90 degrees F temperature with an ambient temperature of 40 degrees F (4.5 degrees C) for the engine jacket water and engine lubricating oil system(s).

b. All heaters shall be automatically deactivated when the engine generator unit is in

operation.

2. Field Piping

a. All required field piping except for engine fuel, exhaust and air starting piping shall be seamless copper, Type L and sizes as recommended by the engine manufacturer and shall have approved fittings with soldered joints. Flanges or unions shall be provided as required to make disassembly for repairs easy. All connections to the engine shall be made with flexible metal hose of an approved type. Fuel, exhaust and air starting piping shall be as specified earlier in this Section.

3. Hearing Protection

a. Two circumaural hearing protection devices MSA Noisefoe Mark IV ear muffs or

equal shall be furnished for the protection of operating personnel. Provide with high impact plastic window type cabinet, suitable for wall mounting.

4. Flexible all-metal connectors for all field-piped connections to the engine. 5. Remote break-glass emergency stop located outside the generator room per NFPA 110.

2.04 ENGINE INSTRUMENTATION AND CONTROLS

A. The engine driven generator shall include a combination engine/alternator control panel, shock mounted in a unit-mounted NEMA 12 enclosure located at the alternator end of the unit, and oriented to be easily viewed through the open enclosure doors. The control panel shall be all electronic type with two line alpha-numeric digital displays visible in any lighting condition. Panel construction shall conform to UL 508 for industrial control panels. Provide all interconnecting wiring between the engine/alternator set and the control panel. Direct communication with the control panel shall be with an environmentally sealed membrane keypad. The control system shall be PLC based. Furnish all software, instructions, and interconnecting cables required for PC communication with the control panel for adjustment and diagnostics.

1. Information displayed on the face of the panel shall include, but not be limited to, the following indications: a. Lubricating oil pressure b. Coolant temperature c. AC volts, 0.5 percent accuracy d. AC Amperes, 0.5 percent accuracy e. Frequency meter, 0.5 percent accuracy



f. Output power (kW and kVA) (total and per phase) g. Power factor h. Non-resetting elapsed time meter calibrated in hours and tenths of hours i. DC volts j. Tachometer k. Diagnostics for servicing l. Emergency shutdown condition indication lamps for each shutdown condition with

logic to maintain lockout condition and fault light until reset.

2. Operators on the panel shall include: a. RUN-OFF-AUTO selector switch b. Emergency stop mushroom type push button. c. Voltage control d. Alarm test/reset pushbuttons. e. Phase selector switch

3. The panel shall also include: a. Necessary fuses b. Alternator voltage regulator c. Engine control module. d. Governor controller.

B. The control panel shall include a complete automatic engine start control that operates in response to closing a remote contact and stop control that operates in response to opening the remote contact.

1. The engine control module shall provide automatic cyclic cranking for at least four 15 second cranking periods separated by 15 second rest periods. If the engine fails to start after the last cranking cycle, the cranking limiter shall terminate further cranking and activate the overcrank alarm. The cranking limiter shall automatically disengage the starter when the engine fires and accelerates to operating speed.

2. The generator controls shall include a three-position switch with the following positions: RUN-OFF-AUTO. In RUN, the engine shall start and run with load transfer controlled from a remote location; in OFF, the engine shall stop and shall not start; in AUTO, the engine shall start, run and stop from a remote two-wire signal from the automatic transfer switch furnished. Load transfer shall occur when the unit attains rated voltage and frequency.

3. The generator controls shall include an automatic cool-down timer, to allow the engine to continue to operate after load transfer back to the normal power supply, to cool down prior to automatic shut-down. The timer shall be adjustable from zero to ten minutes and shall be engaged when the selector switch is in the AUTO position.

4. Should any of the protective sensors on the generator activate, the engine control shall immediately shut down the engine.

C. The control panel shall include an emergency stop pushbutton. Arrange the controls to accept operation of a remote contact to provide for remote emergency stop. Emergency stop shall over-ride all other controls to immediately shut off the fuel supply and shutdown/stop the generator engine, while concurrently tripping open the generator circuit breaker.



D. Furnish a remote emergency stop switch loose, for installation as shown on the Drawings. The remote emergency stop switch shall be break glass type, housed in a NEMA 4 wall mount enclosure, permanently labeled as “Generator Emergency Stop”.

E. Provide automatic shutdowns with fault light alarm indicators for each of the following conditions:

1. High coolant temperature

2. Low coolant level

3. Low lubricating oil pressure

4. Engine overspeed

5. Engine overcrank

6. Over voltage

7. Emergency Stop

F. The controls shall include automatic pre-alarms for the following conditions with fault lights for each:

1. Low coolant temperature

2. Approach high coolant temperature

3. Approach low lube oil pressure

4. Switch not in AUTO position

5. Low battery voltage

6. Generator breaker tripped

7. Battery charger alarm

G. The control panel shall include an audible alarm horn to signal any of the alarm shut down or pre-alarm conditions. Alarms shall not reset and the alarm horn shall not shut off until manually acknowledged, and fault lights shall not reset until the fault is resolved. Provide lamp test pushbutton and alarm acknowledge pushbutton.

H. Arrange the control panel to accept remote dry contact closure for generator circuit breaker tripped alarm and battery charger failure alarm; display the alarm condition as an individual labeled alarm on the alarm panel; and include the alarm condition in the remote common pre-alarm output.

I. The controls shall include one normally open and one normally closed electrical relay dry contact rated 10 amperes at 120 volts A.C., for operation of a remote alarm on activation of any one or more of the pre-alarm conditions listed above, and shall include one normally open and one normally closed electrical relay dry contact, rated 10 amperes at 120 volts A.C., for



operation of a remote alarm on activation of any one or more of the shut-down conditions listed above.

J. The control panel shall include three sets of normally open/normally closed dry contacts, rated 10 amperes at 120 volts A.C. that shall activate upon engine run.

K. Arrange the generator control panel for the following field wiring connections. Provide numbered terminal strip connections for each.

1. Remote start/stop - dry contact closure input from the automatic transfer switch - battery voltage pair

2. Remote emergency stop - dry contact open input from the remote emergency stop station – battery voltage pair.

3. Generator breaker open - dry contact closure input from the generator main breaker –battery voltage pair.

4. Engine run - three dry contact open/close output from the generator control panel for remote connection – 120 Volt pairs

5. Generator shut-down alarm – dry contact open/close output from the generator control panel for remote connection – 120 Volt pair

6. Generator trouble alarm – dry contact open/close output from the generator control panel for remote connection – 120 Volt pair.

7. Battery charger fault – dry contact closure input from the battery charger – battery voltage pair.

2.05 ALTERNATOR AND EXCITATION SYSTEM

A. The alternator shall be of the open drip-proof bracket type, especially designed for connection to the engine and shall be for the power output characteristics as described herein, designed to start and operate the specified loads. The alternator shall have Class H insulation with a temperature rise in accordance with NEMA MGI-22.40 under full rated load operation. The alternator shall have Amortisseur windings.

B. The alternator shall be as manufactured by Caterpillar/Olympian or equal by Cummins/Onan, Generac, Kohler or Baldor. It shall have a forged or cast alloy steel flanged shaft for direct connection through a flywheel type coupling or adapter and disc coupling to the engine, and shall be of the single bearing type with anti-friction bearing.

C. Brace the alternator windings to withstand any possible short circuit stresses. The windings shall withstand overheating or stresses caused by harmonics generated by pulse width modulated variable frequency drives and solid state starters. The alternator shall be "Radio Interference Proof" (RIP) and the "Telephone Influence Factor" (TIF) shall be within the limits of Section 9, ANSI C50.12.

D. The alternator shall be brushless with a rotating permanent magnet generator type excitation system with Class H insulation.



E. The alternator shall include a complete voltage regulating system that shall hold the alternator voltage output within the limits specified herein. The voltage regulator shall be solid state digital (Volts/Hz) with RFI filters and associated controls. The voltage regulator shall provide regulation within 0.25 percent no load to full load, with temperature drift of not more than 0.5 percent. The regulator shall maintain precise control of the alternator output with up to 20 percent harmonic distortion in the output voltage. Provide means in the control panel for a minimum of plus or minus five percent manual voltage adjustment while the unit is running.

F. The alternator stator core shall be 2/3 pitch, built of low carbon steel laminations, precision-punched, deburred and individually insulated. Insert the stator coils into insulated core slots. Wound core shall be vacuum impregnated with fungus resistant thermosetting synthetic varnish and baked for maximum moisture resistance, high dielectric strength and high bonding qualities. Armature lamination followers and frame ribs shall be welded integral with frame. Enclosure shall be drip-proof guarded and shall include rodent screens. Alternator insulation must be certified under UL 1446.

G. Alternator rotor poles shall be of individually insulated steel punchings. Poles shall be vacuum impregnated with fungus resistant thermosetting synthetic varnish and baked for maximum moisture resistance, high dielectric strength and high bonding qualities. Braze cage connections for strong construction and permanent electrical characteristics. Bolt each pole to the rotor shaft

H. Provide a directional blower on the alternator shaft to draw cooling air from the exciter end, over the rotor poles and through louvered openings in the drive end.

I. The alternator shall have a permanently lubricated anti-friction bearing. The designed bearing life, based on the B-10 curve of the American Bearing Manufacturers Association, shall be not less than 40,000 hours.

J. Provide an automatic thermostatically controlled anti-condensation space heater rated 120 volt AC, single phase power supply to maintain not less than 32 degrees C temperature within the alternator enclosure with an outdoor ambient temperature of minus 23 degrees C to prevent the accumulation of condensation within the alternator enclosure under outdoor ambient conditions. Provide conduit and wire for the jacket water heater to a junction box installed inside of the enclosure for field wiring service power connection by the CONTRACTOR.

K. The alternator shall include a NEMA I terminal box, sized to NEC clearances, and located to provide convenient arrangement inside the enclosure for access to the circuit breaker and wiring terminations. Provide potential transformers and current transformers in the terminal box for on board monitoring of generator output voltage and current.

L. At any balanced load between 75 and 100 percent rated output, the difference in line-to-neutral voltage among the three phases shall not exceed one percent of the average line-to-neutral voltage. Under an unbalanced load, consisting of 25 percent load at 1.0 power factor placed between any phase and neutral and zero load on each of the other two phases, the maximum simultaneous difference in voltage between the three line-to-neutral phases shall not exceed three percent of rated line to neutral voltage.

2.06 GENERATOR MAIN CIRCUIT BREAKER

A. Furnish one three pole, circuit breaker for three phase overloads and/or short-circuit protection. Current ratings shall be as required to protect the generator unit from overload or short circuit



and shall be as shown on the Electrical Drawings. The circuit breaker shall operate automatically during overload and short-circuit conditions. Circuit breaker shall be UL listed and rated per NEC requirements to carry the full ampere load of the generator. The circuit breaker shall include auxiliary contacts wired to the generator control panel to provide alarm if the breaker is in the “Tripped” or “Off” position. The short circuit rating of the generator circuit breaker shall be not less than 42,000 Amps RMS symmetrical.

1. Provide a generator mounted UL/CSA Listed main line AC circuit breaker, solid state trip, 3 pole molded case, NEMA 1/IP22 for the purpose of providing an AC electrical load circuit interrupting and protection device for the generator. The circuit breaker shall have an LS or LI adjustable electronic trip with current sensors that shall monitor each phase for each pole of the circuit breaker. Generator exciter field circuit breakers do not meet this requirement and are not acceptable. The breaker shall be furnished with a shunt trip to be connected to engine/generator safety shutdowns for safety trip opening of the circuit breaker with the occurrence of any generator set safety or emergency shutdown. Breaker shall be housed in an extension terminal box which is isolated from vibrations induced by the generator set. Mechanical type lugs, sized for the circuit breaker feeders shown on Drawings, shall be supplied on the load side of breaker. The trip mechanism shall be quick-make, quick-break, mechanically trip-free over-center switching mechanism operated by a toggle-type handle. Handle shall indicate breaker position. A push-to-trip button mounted on the front of the circuit breaker shall provide a local manual means to exercise the trip mechanism.

2. Trip units shall be adjustable, microprocessor-based, electronic overcurrent trip device with true three phase RMS sensing of sinusoidal and non-sinusoidal currents, with the following minimum features and functions:

a. Adjustable rating plugs interlocked so they are not interchangeable between frames,

and interlocked such that a breaker cannot be closed and latched with the rating plug removed.

b. Trip mode indicators for shunt trip, overload and short circuit. c. An operator interface display panel showing diagnostic information and metering

information.

3. Provide means to apply a padlock to lock the circuit breaker in the “OFF” position.

2.07 SOUND ATTENUATED WEATHERPROOF HOUSING

A. Enclose the skid mounted generator unit, battery, battery charger, and exhaust silencer in a factory manufactured sound attenuated weather protected skin tight enclosure designed to meet the conditions set forth below. The enclosure shall comply with the National Electrical Code (NEC), and the National Fire Protection Association (NFPA) for clearance around electrical equipment as specified. The enclosure shall conform to the following design criteria:

1. Rigidity wind test equal to 150 mph

2. Roof load equal to 50 lbs per sq. ft.

3. Rain test equal to 4-in per hour

4. The enclosure shall bear a label certifying compliance with UL 2200.



B. The enclosure shall have an interior width as required to provide minimum clearances on the sides and end of the generator set. The enclosure shall provide for continuous, unobstructed access on the two sides of the generator. The dimensions of the enclosure shall be such as to provide space for and NEC clearances for the generator set, the generator circuit breaker, and the generator control panel.

C. The enclosure shall be of lift-off design, consisting of a roof, walls, louvers, and hoods/baffles of frameless panel construction epoxy powder coated steel sheet minimum thickness of 0.080-in. All fasteners shall be concealed stainless steel self-tapping screws. Camber the roof to aid in rain run-off. Provide insulation in the walls and roof as required to meet the specified noise limitation criteria specified herein. Color shall be manufacturer’s standard. Submit available color options.

D. The base and underframe shall consist of two wide flange “I” beam or channel longitudinal skids, with fabricated steel cross members. Overlay cross members with 1/8-in thick steel plate welded to the cross members to provide a solid floor. A 3/4 inch pressure treated wood subfloor may be used between the cross members and the steel deck to provide further sound attenuation and for acoustic isolation of the generator and base assembly. Provide mounting to attach the lift-off enclosure to the base. Provide steel tapping plates coordinated with the generator set manufacturer, for anchoring the equipment within the enclosure. Provide floor openings for electric conduit stub-up where required for conduit wiring access to the equipment within the enclosure. The floor shall incorporate a diked perimeter to form a containment area for spilled fluids such as coolant and lubricating oil. The diked volume shall be at least 150 percent of the greatest fluid volume contained within the engine. The dike shall have steel edges welded and/or caulked to the floor. The conduit stub-up and any other floor penetrations shall be diked. The diked area may form the containment within itself, or it may slope and drain to a storage volume. All portions of the diked area shall be accessible for cleaning without removing covers or floor plates.

E. Provide four-point lifting lugs at or near the corners of the enclosure base, with capacity for rigging the entire assembly. Provide two electrical grounding lugs mounted on the base for connection of the grounding system.

F. Provide access doors on each side of the enclosure of sufficient quantity and opening to provide full access to each side of the generator set for maintenance and NEC required access and clearances to the generator circuit breaker. Doors shall consist of a steel frame with skin material matching the enclosure. Doors shall be fully gasketed to form a weathertight perimeter seal and include interior insulation the same as the wall insulation. Hinges shall be forged aluminum or stainless steel with stainless steel pins. Door handles/latches shall be of stainless steel, shall firmly latch the door closed, and shall incorporate means to apply a padlock. Doors shall provide a full 180 degree swing to provide unobstructed access to the enclosure interior when open. Provide a stainless steel hold-open latch on each door.

G. Air handling during operation of the generator set shall be as follows: Air shall enter the enclosure through a louver, flow past the alternator and engine, pass through the radiator fan and radiator, and discharge through a louver. The system shall not exceed 0.5 inch w.g. total external static pressure to ensure adequate airflow for cooling and combustion. Louvers shall be of formed and extruded steel and shall be screened with stainless steel coarse mesh screen. Louvers shall incorporate hoods or baffles as required to provide the specified sound attenuation.



H. The enclosure shall include hardware to internally mount the specified exhaust silencer and maintain the weatherproof integrity of the system.

I. Power supply for the jacket water heater, alternator space heater, battery charger, and one duplex grounded ground fault protected convenience outlet shall be hard wired to junction boxes for field wiring connection of AC service power by CONTRACTOR. Furnish a four gang GFCI outlet box located to power the jacket heater, battery charger, and battery heater and for easy accessibility for use with portable equipment with conduit and wire extending to the junction box. All wiring shall be XHHW type and shall run within galvanized rigid steel conduit.

J. All openings in the enclosure shall be screened, baffled, or otherwise closed to prevent the entrance of insects and rodents.

K. The housing shall have OSHA approved signs on all four sides of the enclosure reading "Danger-High Voltage".

L. It is the intent of this specification to provide complete compliance with all applicable codes, laws and regulations.

2.08 AUTOMATIC TRANSFER SWITCH

A. Furnish, install, test and place into operation the automatic transfer switch with features, accessories and enclosure as specified herein. Automatic transfer switches shall be rated for 200 amperes, 480 volts, 3 phase, 4 wire, continuous neutral, solidly grounded, 50,000 A withstand/closing rating. The automatic transfer switch shall consist of an inherently double throw, 3 pole power transfer switch unit and a controller interconnected to provide complete automatic operation, and shall have three-position operation: closed to normal source, open, closed to standby source. Time delay between opening of the closed contacts and closing of the open contacts shall be a minimum of 400 milliseconds to allow for voltage decay before transfer is complete.

B. Submit shop drawings and product data as follows:

1. Equipment outline drawings and master drawing index showing elevation, plan and interior views, dimensions, weight, anchor bolt pattern and front panel layouts.

2. Provide a list of all options, special features and ratings.

3. Conduit entrance drawings.

4. Furnish complete Bill of Materials indicating manufacturer's part numbers.

5. Assembly ratings including short circuit rating, voltage and continuous current.

6. Cable terminal sizes.

7. Instruction and renewal parts books.

C. Quality Assurance



1. The automatic transfer switches shall be UL 1008 listed for use in standby systems in accordance with Sections 517, 700, 701 and 702 of the National Electrical Code.

2. The automatic transfer switch shall be certified to ISO 9001 International Quality Standard and the manufacturer shall have third party certification verifying quality assurance in design, development, production, installation, and servicing.

3. The automatic transfer switch shall be ASCO 7000 Series or equal.

D. Features and Accessories

1. The following accessories shall be furnished: a. An adjustable time delay of 0 to 30 seconds shall be provided to override momentary

normal source outages and delay all transfer and engine starting signals, factory set at 3 seconds.

b. Adjustable time delay on retransfer to normal shall be provided. Time delay shall be automatically bypassed if the generator fails and the normal source is available. Time delay shall be field adjustable from 0 to 30 minutes. (Set at 30 minutes).

c. An unloaded running time delay for generator cool down shall be provided. Time delay shall be field adjustable from 0 to 60 minutes. (Factory set at 5 minutes).

d. A time delay on transfer to standby shall be provided, factory set at 5 seconds but field adjustable up to 5 minutes.

e. Auxiliary contact to close when normal fails (for engine start). f. Close differential adjustable relay under voltage protection on all three phases of the

normal and standby sources, set to drop out at 80 percent of rated voltage and pick up at 90 percent of rated voltage. Over voltage relay protection shall drop out at 104 percent of rated voltage and pick up at 2 percent below trip.

g. Close differential adjustable relay under frequency sensing on all three phases of the generator source, set to drop out at 85 percent of rated frequency and pickup at 90 percent rated frequency. Over frequency relay protection shall drop out at 104 percent of rated frequency and pick up at 2 percent below trip.

h. Voltage unbalance relay shall be set to drop out at 5 percent and pick up at 1 percent below drop out.

i. Auxiliary Contacts 1) One to close when normal fails (Status to computer) 2) One to open on standby (Combustion air damper control) 3) One to close on standby (Status to computer) 4) One to close on standby (Spare) 5) One to open on standby (Spare) 6) One to close on normal (Status to computer) 7) One to open on normal (Spare)

j. A green pilot light to indicate when the automatic transfer switch is connected to the normal source. A red pilot light to indicate when the automatic transfer switch is connected to the standby source.

E. Enclosure

1. The automatic transfer switch shall be furnished with a NEMA 12 enclosure, mounted remotely from the generator unit.

F. Signage



1. The automatic transfer switch shall be furnished with a sign on all doors marked DANGER - 480 VOLTS - KEEP OUT. Letters shall not be less than 1-in high, 1/4-in stroke. Signs shall be laminated plastic, engraved white letters with a red background.

G. Field Testing

1. Perform the following minimum tests and checks on the automatic transfer switch: a. Megger incoming line terminals and buses, phase-to-phase and phase-to-ground after

disconnecting devices sensitive to megger voltage. b. Check polarity and continuity. c. Check mechanical interlocks for proper operation. d. Test ground connections for continuity and resistance. e. Adjust unit doors. f. Check control circuit interlocking and continuity. Provide external source of control

power for this test. g. Adjust timing devices to their correct settings. h. Simulate power failure and demonstrate that the engine-generator automatically starts

and the electrical load is transferred to standby power. i. Simulate restoration of normal power.

2.09 SURFACE PREPARATION AND SHOP PAINTING

A. The engine driven generator set and associated equipment shall be shop primed and finished coated in accordance with the manufacturer's standard practice prior to shipment. Furnish an adequate supply of touch-up paint.

2.10 SHOP TEST

A. Shop test the complete engine driven generator unit and the generator control panel prior to shipment. Submit the complete certified test record. The tests shall demonstrate that the unit will operate successfully and meet the specified operational requirements. The manufacturer shall furnish all instruments, filters, fuel, electric power and load banks for the test.

B. The shop test shall include operation on a reactive load bank at 0.8 power factor at rated standby load. During operation, test and record voltage and frequency regulation, and voltage and current balance to confirm compliance with this specification. Perform tests to demonstrate transient response from zero load to full load, zero load to half load, and half load to full load. Test each of the automatic alarm and shut-down devices and record the settings at which the automatic devices actually alarmed and/or stopped the engine. Submit copies of the shop test record.

C. During the factory test, take readings and record results for each of the following:

1. Time

2. Ambient temperature.

3. Load: a. Volts [for each phase] b. Amps [for each phase] c. Kilowatts



d. Frequency e. Power Factor

4. Engine jacket water temperature

5. Lubricating oil pressure

D. The model generator to be furnished shall be manufacturer factory prototype tested in accordance with IEEE Standard 115. Report data shall be included in the Submittals and generator Operation and Maintenance manuals. Testing shall include the following:

1. Cold resistance of all windings

2. Insulation resistance of all windings

3. Polarity of field coils

4. High potential on all windings

5. Open circuit saturation

PART 3 EXECUTION

3.01 INSTALLATION

A. Provide the services of a factory field representative to check the installation of the generator unit and appurtenances, to ensure installation in accordance with the manufacturer’s recommendations, perform check-out and start-up services, and conduct the field test.

B. Mount the generator enclosure skid base on a concrete foundation and level to provide equal bearing for all supports as work of this section. Utilize grout or other approved means to level the mounting surface of the foundation to provide equal bearing for all supports. Furnish and install anchors in accordance with the submitted foundation design. Connect the unit to field wiring and to fuel supply piping.

C. Installation shall include furnishing all required coolant and lubricants in accordance with the manufacturer’s recommendations.

3.02 EQUIPMENT START-UP

A. After installation and manufacturer's representative check of the installed equipment, operate the unit to demonstrate its ability to operate continuously without vibration, jamming, leakage or overheating and to perform specified functions.

B. Comply with manufacturer's operating and maintenance instructions during start-up and operation.

C. Promptly correct improper installation of equipment.



D. Cooperate with supplier of equipment at time of start-up and in making of all final adjustments necessary to place equipment in satisfactory working order. Start-up shall not commence without the presence of the manufacturer's representative.

3.03 FIELD TEST

A. Upon completion of installation and as soon as conditions permit, test the generator unit, controls, and appurtenances for acceptance, including load bank testing and operation under actual operating conditions, to demonstrate that operation is satisfactory. Before conducting the on-site field tests, submit a copy of the proposed field test log sheet. Prior to scheduling the test, notify the Engineer in writing that all requirements and provisions of the Contract Documents have been fulfilled, that all apparatus has been cleaned, properly adjusted, and is ready for operation, and that the Operation and Maintenance manuals have been submitted. Perform testing in the presence of the Engineer.

B. The test shall consist of two hours of continuous operation of the engine driven generator unit at unity power factor using a temporary portable resistive load bank. Load bank testing load on the generator set shall be adjusted, starting with 15 minute intervals each at 1/4 load, 1/2 load, and 3/4 load followed by the remaining time at full load. Furnish the load bank plus all connecting cables, metering equipment, and other equipment or devices required, and fuel to perform the load bank testing. During the test, take and record the same readings as outlined under Shop Test, at fifteen minute intervals.

C. As part of the field test, test each of the automatic alarm and shutdown devices and record the respective values at which the devices will alarm and/or stop the engine. Perform any adjustments required in the alarm settings to make the operating values correspond to those recommended by the engine manufacturer and as recorded during the shop test. Verify that each alarm point activates the designated remote alarm contact. Test the remote emergency stop. Testing shall include verification of proper voltage regulation, transient voltage dip and recovery time, and voltage and current balance.

D. After the load bank test has been completed, connect the generator to the facility load, and perform additional testing utilizing the main circuit breaker to simulate a utility power failure, to demonstrate the generator unit’s ability to meet the automatic starting, load transfer, and motor starting requirements as specified herein, utilizing facility load as available. Operate the facility on generator power for at least 30 minutes then restore utility power via the main circuit breaker, to cause the transfer switching to reset and shut down the generator. Record generator operating parameters as specified above.

E. Provide a person qualified to conduct sound pressure level testing, and test instrumentation, to take and record octave band sound pressure level readings at the time of the on-site field test, when operating the generator at maximum available station load (no load bank operation). The sound pressure readings shall be within the limits permitted by this specification. If changes are necessary to accomplish the required silencing, perform revisions as required and retest.

F. If the standby power supply system fails to fulfill the requirements of this specification, perform corrections and retest the system to assure full compliance at no additional cost to the Owner.


© 2014 CDM Smith 136240-99477 All Rights Reserved March 2014 3.04 TRAINING

A. The equipment manufacturer shall furnish the services of a factory representative who has complete knowledge of proper operation and maintenance for a minimum of one, eight hour working day to instruct representatives of the Owner and the Engineer in the proper operation and maintenance of the equipment.

B. Training shall be provided at the site and timed to accommodate all working shifts, including some late evenings, and early mornings. The instruction period shall be scheduled at least ten working days in advance with the Owner and shall take place prior to start-up and acceptance of the equipment by the Owner. Training shall include system operations, preventive maintenance, and troubleshooting.

C. Submit, at least 30 working days prior to the start of training, a training syllabus that includes the above requirements, proposed dates and times for training, and instructor resume. Training may not commence until the first draft of the O&M manual has been submitted for review.

END OF SECTION



SECTION 16720 FIRE ALARM SYSTEM

PART 1 GENERAL 1.01 SCOPE OF WORK

A. The Contractor shall employ the services of a licensed fire alarm protection systems engineering company to design and install the fire alarm protection system and prepare detailed installation drawings and material specifications for the new Public Transportation Facility, Key West, Florida, to be signed and sealed by a professional engineer registered in the state of Florida. These Contract Documents shall be submitted for review in accordance with the requirements specified herein. Fire alarm systems are to be provided for the Bus Maintenance and Operations Facility.

B. The fire alarm protection system shall be checked by the local fire authority having jurisdiction

during design and upon completion of the installation. The Contractor shall assume full responsibility for the correctness of the installation and make any and all corrections and additions deemed necessary by the fire authority. The Contractor shall pay for all costs of the inspection and any subsequent re-inspections as required.

C. Design, furnish, install, test and place in operating condition an electronically-operated, double-

supervised, closed-circuit fire alarm system. All units of equipment shall be listed by UL for fire alarm signaling use and shall consist of a control unit, manual fire boxes, alarm indicating appliances, automatic smoke and heat detectors, door release appliances, standby battery and charger and supervisory switches, all located as required by the system designer and applicable codes and wired in accordance with the manufacturer's instructions to make a complete and workable system.

D. System designer shall coordinate with the local Fire Department to assure that all local, state,

and federal requirements are met.

E. The fire alarm system design shall provide total coverage for all the facilities and shall be in accordance with the applicable local building codes and the Americans with Disabilities Act (ADA). Where the local codes are silent on an issue, the design shall be in accordance with NFPA 101. The application, installation, performance and maintenance of the fire alarm system and its components shall be in accordance with the NFPA 72.

F. The design and installation of all wiring, cable and equipment shall be in accordance with

NFPA 70, and specifically with Article 760, Article 770 and Article 800.

G. Provide all the documentation indicated in NFPA 72, Sections 1-7 and 7-5.2. The documentation and permanent records shall include but not be limited to written statement by the Contractor indicating the system has been installed and tested in accordance with applicable documents; certificate of completion; installation instructions and after successful completion of acceptable test satisfactory to the Authority having jurisdiction; a set of reproducible as-built installation drawings; operation and maintenance manuals and a written sequence of operation.

1.02 RELATED WORK Public Transportation Facility Fire Alarm System City of Key West, Florida 16720 - 1


A. Conduit, boxes, fittings, and supports shall be furnished for all wiring to meet the requirements of the system design and be provided and installed under this Section as specified on sheet E-4.

B. Wire shall be furnished to meet the requirements of the system design and be provided and

installed under this Section as specified on Sheet E-4.

C. Fire suppression systems, sprinkler system alarm valves, flow and supervisory switches shall be furnished under Division 15 and as specified on the HVAC and Plumbing Drawings.

D. Diesel fire pump and controller are furnished and installed under Division 15, by the

Contractor.

1.03 SUBMITTALS

A. Submit the following for engineering review:

1. Shop drawings for each Fire Alarm Control Panel and its associated detectors, alarms, inputs and outputs. Each set of Fire Alarm Control Panel shop drawings shall include:

a. Manufacturers’ equipment data sheets including sufficient data to indicate

compliance with the specifications and component identification tag number, when applicable. Show physical dimensions, mounting and installation details and wiring connections. Indicate all options, special features and deviations from this Section.

b. Bill of material for each fire alarm panel listing all modules by quantity and part

number.

c. Listing of every input/output point address for each panel.

d. Standby battery calculations.

e. Internal point-to-point wiring diagram for each panel showing interconnections between modules.

f. External loop interconnection wiring diagram for each initiating and notification

circuit, including interlock wiring to HVAC and elevator controllers. Loop diagrams shall indicate the origin of the loop at the control panel and include all external devices connected to the loop. Identify external devices by room number or location and type. Show all terminal numbers and color coding for wiring.

1.04 SEQUENCE OF OPERATION

A. Upon activation of any manual pull station, automatic detector, the system shall:

1. Automatically notify local Fire Department (or other agency as directed by the fire authority) via a dedicated telephone line and transmitting/receiving equipment provided, installed and coordinated by the Contractor. All costs for this work shall be borne by this Contractor.

Public Transportation Facility Fire Alarm System City of Key West, Florida 16720 - 2


2. Automatically start the audible and visual alarm indicating appliances throughout the building under alarm (if more than one) as specified herein.

3. The audible alarm appliances shall sound the standard evacuation tone temporal pattern 3

and visual alarms flash until alarm initiating devices have been restored to normal and the reset switch located at the control panel actuated.

B. When any of the building's alarm initiating devices are activated, its building exterior mounted

beacons shall operate.

C. The local Fire Department shall be hereinafter referred to as the Fire Department. 1.05 REFERENCE STANDARDS

A. National Fire Protection Association (NFPA)

1. NFPA 70 - National Electrical Code (latest edition).

2. NFPA 72 - National Fire Alarm Code (latest edition).

3. NFPA 101 - Code for Safety to Life from Fire in Buildings and Structures (latest edition).

B. Underwriters Laboratories (UL)

C. Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

PART 2 PRODUCTS 2.01 MATERIALS

A. The control panel shall be recessed mounted (new construction), modular, of dead-front construction using solid-state components to operate the system. Alarm initiating circuits shall meet National Electrical Code (NEC) requirements for limited energy applications and function with up to 100 ohms resistance in the alarm initiating device and its associating wiring. The control unit shall contain an internal audible signal with audible acknowledge switch, system reset switch, lamp test switch, audible silence switch and auxiliary master box disconnect switch. Control unit shall be double-supervised so that a trouble signal shall sound in the event of loss of either operating or supervising power. Two light-emitting diodes (LEDS) shall be installed and shall remain illuminated to indicate both operating and supervisory power are energized. Trouble audible acknowledge switches shall be furnished with its associated LED so that indication of trouble on alarm initiating circuits, alarm indicating circuits and supervisory circuits shall initiate a control panel audible and be silenced independent of each other. The silencing of a trouble condition in any zone shall not prevent the resounding of the control panel audible in the event of a subsequent trouble conditions in other circuits. When trouble conditions are restored to normal, the audible acknowledge switch shall not require restoration to normal.

1. Each circuit shall be supervised to provide a trouble condition in the event of an open or

short in either circuit. A means shall be provided so that alarm indicating appliances may Public Transportation Facility Fire Alarm System City of Key West, Florida 16720 - 3


be discontinued before the actuated initiating device has been restored to normal; but shall not prevent the resounding of subsequent alarms received from another zone. A visual indicator shall be provided so that operating personnel can readily determine that the signals have been discontinued.

2. The initiating device circuits and the notification appliance circuits shall be Class "A".

They shall allow the receipt of and notification of alarms even in the event of a single open or a single ground in the circuits.

3. Each of the zones shall have a separate zone trouble and alarm indicator. All field wires

connected to alarm initiating devices necessary to activate an alarm shall be electrically supervised and a single open or ground on such wires shall not cause an alarm condition. An open in any alarm initiating circuit shall cause the associated visual trouble indicator to flash and the control panel audible to sound steady, until the audible acknowledge switch is actuated at which time the trouble indicator shall go steady and the control panel silenced. On alarm condition in any alarm initiating circuit, its associated visual alarm indicator shall flash and the control panel audible shall pulsate and the alarm indicating appliances shall sound. When a zone audible acknowledge switch is activated, the indicator shall be lit steady and the control panel audible silenced. The silencing of a trouble or alarm condition in any zone shall not prevent the resounding of the control panel audible in the event of a subsequent alarm or trouble condition in other circuits, or loss of either operating or supervising power. Each alarm initiating circuit shall have associated dry, fused, Form "C" alarm contacts for its associated zone. This contact shall transfer upon alarm condition in its associated zone. Each initiating circuit containing four wire smoke detectors shall incorporate an end of line relay to supervise the smoke detector power circuit.

4. The horn/strobe light units shall be wired on dual circuits to permit silencing of the horns

and allow the strobe lights to flash during alarm conditions.

5. Means shall be provided to sound the control panel audible upon a ground fault between any supervised circuit and ground. This ground fault shall also light a visual indicator on the control unit for rapid identification of the trouble cause.

6. All visual indicators on the control panel shall be supervised so that an open or short in

any visual indicator shall provide a trouble indication.

7. The batteries used with the fire alarm control panel shall be capable of operating the panel for 60 hours with a 5 minute ring-down at the end of a 60 hour period. The calculation used to determine battery capacity shall be submitted to the Engineer and presented to the Fire Department at the time of inspection. Control unit shall be Autocall, Type MDK or equal.

B. Manual fire boxes shall be non-coded and shall be semi-flush mounted in finished areas and

surface-mounted in unfinished and existing areas. Stations shall be double-action with "LIFT TO BREAK" plastic shield. When operated, fire boxes shall remain mechanically locked until manually reset. Construction shall be of rigid metal with raised lettering and clear plastic shield with lettering "LIFT TO BREAK - PULL LEVER DOWN". Manual fire boxes shall be Autocall, double-action 4051 or equal. Double-action stations requiring external hammer to break glass to gain access to actuating lever shall not be acceptable.



C. Manual fire boxes for "WP" weatherproof applications shall be non-coded, surface mounted type. Stations shall be slide action type with internal glass rod. Construction shall be die-cast aluminum finished in red with raised natural aluminum lettering, gasketed with back box. Stations shall be Autocall, Catalog No. 5 DW or equal. Double-action stations requiring external hammer to break glass to gain access to actuating lever will not be acceptable.

D. Manual fire boxes for Class 1, Division 1, Group D hazardous area applications shall be non-

coded surface mounting type. Stations shall be double-action type with a hinged cover which holds a sliding actuator plate in place. Activation of the stations is made by lifting the hinged cover and pulling down on the ring. Stations may be reset after activation without need for replacement parts. Stations shall be Killark, XAD Series or equal. Double-action stations requiring a hammer to break glass to gain access to actuating lever will be acceptable.

E. Automatic ionization type smoke detectors shall be of the dual-chamber, locking type. The

dual-chamber shall be highly sensitive to products of combustion and shall allow for compensation for pressure and humidity changes. The detectors shall be equipped with a solid-state regulator to maintain detection sensitivity over a wide range of input voltages. A visual indication of an alarm shall be given by a LED on the detector grille. Automatic ionization type detectors shall be four-wire Autocall, Type 1451-B402B or equal.

F. Automatic photo-electronic type smoke detectors shall operate on the forward light scattering

principle using a pulsed infra-red light emitting diode light source and a photo diode sensor. The detectors shall be of the locking type and have an alarm verification circuit requiring several successive signals exceeding the alarm threshold value prior to transmitting an alarm. A visible LED indicator shall blink to indicate power on and normal operation. On alarm the indicator shall turn on and remain on until the detector is reset. Automatic photo-electronic detector shall be four wire type, Autocall, Model 2451-B402B or equal.

G. Heat Detectors

1. Heat detectors shall be combination fixed temperature and rate of rise of fixed temperature

only. Rate of rise element shall comprise of calibrated, moisture proof, trouble free vented chamber with flexible metal diaphragm to close contact when temperature rise exceeds 15 degrees F per minute. Contact shall be rated 3 Amps, 28 VDC. Fixed temperature element shall comprise nonrestorable fusible alloy element with external heat collector that drops for view when alloy fuses for visual indication of operation. Units shall be enclosed in white low profile dome shell with matching base.

2. Units shall be color-coded to indicate one of the following types:

a. 135 degrees F fixed temperature and rate of rise (Autocall 601)

b. 200 degrees F fixed temperature and rate of rise (Autocall 602)

c. 135 degrees F fixed temperature only (Autocall 603)

d. 200 degrees F fixed temperature only (Autocall 604)



3. Heat detectors for Class 1, Division 1, Group D hazardous areas shall have, in addition to their rated enclosures, electrical features similar to those above.

a. 136 degrees F fixed temperature and rate of rise (Autocall EPB-501)

b. 190 degrees F fixed temperature and rate of rise (Autocall EPB-502)

c. 136 degrees F fixed temperature only (Autocall EPB-503)

d. 190 degrees F fixed temperature only (Autocall EPB-504)

H. Combination audio-visual horn/strobe light units meeting current ADA requirements and shall

be installed on supervised circuits. Visual portion shall flash on alarm condition. Audio-visual units shall be Autocall, Types SM-24D/H or equal.

I. Horn for Class 1, Division 1, Group D hazardous area applications shall have a sound rating of

100 dB at 10-ft and be Federal Signal, 41x.

J. Strobe light for Class 1, Division 1, Group D hazardous area applications shall be for wall mounting, provide 72 high intensity flashes per minute, be furnished with a red polycarbonate lens and be Crouse-Hinds, EVBS101R/024.

K. Remote trouble station shall consist of buzzer and silencing with switch. Autocall, Type SC-3

or equal.

L. Remote zone annunciator shall be of the non-graphic type with red bulls-eye lamps mounted on a stainless steel plate.

M. Door hold and release units for the closing of doors when the threat of fire exists to prevent the

spread of fire and smoke shall each consist of two elements: an electromagnetic portion to be wall or floor mounted and an armature section to be mounted on the door. The electromagnetic portion is continuously energized by 120 VAC input power. Wall-to-door mounted assembly shall be Autocall, Model 7392-3 or equal. Floor-to-door mounting assembly shall be Autocall, Model 7392-1 or equal.

N. Beacon alarm lights for building exterior mounting shall be weatherproof construction and

have a 750,000 candle power xenon strobe tube and red polycarbonate lens. Beacon alarm lights shall be similar and equal to Federal Signal, Model 371 DST.

O. Master box shall be of the local energy, weatherproof enclosure type for surface mounting.

Gamewell, Model M3456.

P. Grounding assembly consisting of ground rod, clamps and all other required hardware shall be provided for master box protection. Gamewell, Model 30118.

Q. All components shall be products of one manufacturer where such is obtainable.

PART 3 EXECUTION 3.01 INSTALLATION Public Transportation Facility Fire Alarm System City of Key West, Florida 16720 - 6


A. The system shall be wired with No. 14 XHHW throughout in accordance with the manufacturer's diagrams and requirements. All wires shall be numbered at both ends with typewritten heat shrinkable markers.

B. Upon completion of the installation, the fire alarm system designer and the electrical contractor

shall test each and every device including manual station, smoke detector, alarm signals, visual signals, waterflow switches, valves, for proper operation. A certified report shall be submitted to the Engineer indicating date of testing and signatures of the designer's and electrical contractor's personnel that performed the test.

C. Final connections in the system shall be made under the direct supervision of an authorized

representative of the manufacturer. Upon completion of the installation and testing indicated above, the manufacturer shall check and test the entire system with a representative of the Fire Department present.

D. Provide the Owner with wiring diagrams including terminal to terminal designations, complete

equipment specifications and complete sequence of operation.

E. Fire Alarm System manufacturer shall warranty all equipment for a period of one (1) year upon acceptance of the system by the Owner.

END OF SECTION


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