ASHRAE 90.1-2001 Arkansas Energy Code 2004 Compliance.

ASHRAE 90.1-2001

Arkansas Energy Code 2004

Compliance

ASHRAE 90.1-2001 and Arkansas Energy Code 2004

• Commercial Buildings are governed by Chapter 7 or Chapter 8.

• Chapter 7 states: “701.1 Scope. Commercial buildings shall meet the requirements of ASHRAE/IESNA 90.1-2001.”

• Chapter 8 states: “801.2 Application. The requirements in Sections 802, 803, 804 and 805 shall each be satisfied on an individual basis. Where one or more of these sections is not satisfied, compliance for that section(s) shall be demonstrated in accordance with the applicable provisions of ASHRAE/IESNA 90.1-2001.”

• ASHRAE 90.1-2001– 3. Definitions, Abbreviations and Acronyms– 5. Building Envelope– 6. Heating, Ventilating, and Air-Conditioning– 7. Service Water Heating– 9. Lighting– 11. Energy Cost Budget Method

• 3. Definitions, Abbreviations and Acronyms– budget building design

– building envelope• exterior• semi-exterior

– building grounds lighting

– continuous insulation (ci)

– door, door area

• 3. Definitions, Abbreviations and Acronyms– envelope performance factor

• base envelope performance factor

• proposed envelope performance factor

– façade area– fenestration

• skylight

• vertical fenestration

• 3. Definitions, Abbreviations and Acronyms– fenestration area– floor, envelope– floor area, gross

• gross building envelope floor area

• gross conditioned floor area

• gross lighted floor area

• gross semi-heated floor area

• 3. Definitions, Abbreviations and Acronyms– glazed wall system– historic– installed interior lighting power– lamp - compact fluorescent, fluorescent, general service, HID,

incandescent, reflector

– lighting, decorative– lighting, general

• 3. Definitions, Abbreviations and Acronyms– lighting power allowance

• interior

• exterior

– process energy– process load– rated R-value

• 3. Definitions, Abbreviations and Acronyms– roof

• attic and other

• metal building

• insulation entirely above deck

• single rafter roof

– roof area, gross– service water heating

• 3. Definitions, Abbreviations and Acronyms– shading coefficient

– site recovered energy

– site solar energy

– slab on grade• heated• unheated

– solar heat gain coefficient

• 3. Definitions, Abbreviations and Acronyms– space

• conditioned– cooled– heated– indirectly conditioned

• semi-heated

• unconditioned

– space conditioning category

• 3. Definitions, Abbreviations and Acronyms– story– wall

• above grade

• below grade

• mass

• metal building

• 3. Definitions, Abbreviations and Acronyms– wall (continued)

• steel framed

• wood framed

– wall area– zone

• 3. Definitions, Abbreviations and Acronyms– CDD, CDD50– ci– ENVSTD– HDD, HDD65– NAGDM– NFRC

– R, Rc, Ru

• 3. Definitions, Abbreviations and Acronyms– SHGC– VLT

• Section 5 - Building Envelope– 5.1 General– 5.2 Mandatory Provisions– 5.3 Prescriptive Building Envelope Option– 5.4 Building Envelope Trade-Off Option– 5.5 Mandatory Provisions

• Section 5.1 Building Envelope– General

• Scope– exceptions

– moisture control

• Compliance

• Climate, Location

• Space Conditioning Category

• Section 5.2 Building Envelope– Mandatory Provisions

• Insulation

• Air Leakage

• Section 5.3 Building Envelope– Prescriptive Building Envelope Option

• Table 5.3

• Opaque Areas

• Insulation– Roof

– Above Grade and Below Grade

– Floor and Slab on Grade

• Section 5.3 Building Envelope– Prescriptive Building Envelope Option

• Fenestration– area

– U factor

– SHGC

– VLT

• Section 5.4 Building Envelope– Building Envelope Trade-Off Option

• Normative Appendix C

• ASHRAE 90.1-2001 Users Manual

• ENVSTD Software

• Insulation– Installation

– Substantial Contact

– Recessed Equipment

– Roof Insulation

– Protection

• Fenestration and Doors - NFRC and NAGDM– U factor

• Appendix A

– SHGC

• SC x 0.86

– VLT

• Air Leakage– Building Envelope Sealing

– Fenestration and Doors

– Loading Dock Weatherseals

– Vestibules

• exceptions

• Section 5.5 Building Envelope– Documentation

• Section 6 - HVAC– 6.1 General– 6.2 Mandatory Provisions– 6.3 Prescriptive Path

• Section 6.1 - HVAC– General

• Scope

• Compliance– 6.1.3 Simplified Approach

– Mandatory plus Prescriptive

– Mandatory plus Energy Cost Budget (Section 11) Method

• Simplified Approach Option

• Section 6.1.3 - HVAC– Simplified Approach Option

• < 25,000 SF and not greater than 2 stories

• single zone systems

• unitary air-cooled or evaporatively cooled

• meet 6.2 efficiency requirements

• economizer and relief– Table 6.3 efficiency exemption

– “prevent overpressurization”

• Section 6.1.3 - HVAC– Simplified Approach Option (continued)

• over 3,000 CFM OSA or over 70% OSA requires heat recovery

• manual changeover or dual setpoint thermostat

• controls for heat pump auxiliary heaters

• no reheat or other simultaneous operation

• time of day control– 7 different day schedules, manual override

– 55F setback and 90F setup

– 10 hour carryover

• time of day control exceptions– hotel/motel guest rooms

– systems requiring continuous operation

– systems under 65,000 btuh cooling

• piping insulation meets 6.2.4.1.3

• outdoor piping insulation protection

• duct insulation meets 6.2.4.2 and 6.2.4.3

• air balance to ± 10% of design

• no simultaneous operation of heating and cooling

• Exhausts over 300 CFM equipped with dampers

• Systems over 10,000 CFM have optimum start

• Section 6.2 - HVAC– Mandatory Provisions

• Equipment Efficiencies– Tables 6.2.1A through 6.2.1G

• Load Calculations

• Controls– Zone Thermostatic Controls

• thermostat required for each zone

• 5° F deadband

• setpoint overlap restriction

• Controls (continued)– Off Hour Controls

• Automatic Shutdown

• Setback Controls

• Optimum Start

• Zone Isolation

• Controls (continued)– Ventilation System Controls

• Stair and Elevator Shaft Vents

• Gravity Hoods, Vents, and Ventilators

• Shutoff Damper Controls

• Dampers

• Controls (continued)– Heat Pump Auxiliary Heat

– Humidifier Preheat

– Humidification and Dehumidification

– Freeze Protection and Snow Melting Systems

– Ventilation Controls for High Occupancy Areas

• Insulation– General

• Exposed to Weather

• Vapor Retardant

– Duct and Plenum Insulation

• Exceptions

– Piping Insulation

• Exceptions

• Duct and Plenum Leakage– Duct Sealing

– Duct Leakage Tests

• Completion Requirements– Drawings

– Manuals

– System Balancing

• NEBB, AABC, ASHRAE 111-1988

• Air Systems

• Hydronic Systems

– System Commissioning

• Section 6.3 - HVAC– Prescriptive Path

• Economizers– Exceptions

• Air Economizers– Design Capacity

– Control Signal

– High Limit Shutoff

– Dampers

– Relief of Excess Outside Air

• Water Economizers– Design Capacity (50 F db, 45 F wb)

– Maximum Pressure Drop

– Integrated Economizer Control

• exceptions

– Economizer Heating System Impact

• Simultaneous Heating and Cooling Limitation– Zone Controls

• exceptions

– Hydronic System Controls

• Three Pipe System

• Two Pipe Changeover System

• Hydronic (Water Loop) Heat Pump System

• Simultaneous Heating and Cooling Limitation (cont)

– Dehumidification

• exceptions

– Humidification

• Air System Design and Control– Fan Power Limitation

– Variable Air Volume Systems

• Part Load Fan Power Limitation

• Static Pressure Sensor Location

• Set Point Reset

• Hydronic System Design and Control– Hydronic Variable Flow Systems

• exceptions

– Pump Isolation

– Chilled and Hot Water Reset Controls

• exceptions

– Hydronic (Water Loop) Heat Pump Systems

• Heat Rejection Equipment– General

– Fan Speed Control

• Exceptions

• Energy Recovery– Exhaust Air Energy Recovery

• Exceptions

– Heat Recovery for Service Water Heating

• Exceptions

• Exhaust Hoods– Kitchen Hoods

• Exceptions

– Fume Hoods

• Radiant Heating Systems– Heating Unenclosed Spaces

– Heating Enclosed Spaces

• Hot Gas Bypass Limitation– exception

• Section 7 - Service Water Heating– 7.1 General– 7.2 Mandatory Provisions– 7.3 Prescriptive Path

• Section 7.1 - Service Water Heating– General

• Scope

• Compliance– Mandatory plus Prescriptive

– Mandatory plus Energy Cost Budget

• Section 7.1 - Service Water Heating– Mandatory Provisions

• Load Calculation

• Equipment Efficiency– Exception

• Service Water Heating Controls– Temperature Controls

– Temperature Maintenance Controls

– Outlet temperature Controls

– Circulating Pump Controls

• Pools– Pool Heaters

– Pool Covers

• exception

– Time Switches

• Heat Traps

• Section 7.3 - Service Water Heating– Prescriptive Path

• Space Heating and Water Heating

• Service Water Heating Equipment

• Section 9 - Lighting– 9.1 General– 9.2 Mandatory Provisions– 9.3 Prescriptive Path

• Section 9.1 - Lighting– General

• exceptions

• Section 9.2 - Lighting– Mandatory Provisions

• Lighting Control– Automatic Lighting Shutoff

• exception

– Space Control

• exception

– Exterior Lighting Control

• exception

• Lighting Control (continued)– Additional Control

• Tandem Wiring– exceptions

• Exit Signs

• Installed Interior Lighting Power– exception

• Luminaire Wattage

• Exterior Building Grounds Lighting

• Section 9.3 - Lighting– Prescriptive Path

• Interior Lighting Power– exceptions

– Building Area Method

– Space by Space Method

• Additional Lighting Power

• Exterior Lighting Power– exceptions

• Section 11 - Energy Cost Budget Method– 11.1 General– 11.2 Simulation General Requirements– 11.3 Calculation of the Design Energy Cost– 11.4 Calculation of the Energy Cost Budget– 11.5 Exceptional Calculation Methods

• Section 11.1 - Energy Cost Budget Method– General

• Scope

• Compliance

• Trade-Offs Limited to Building Permit

• Envelope Limitation

• Documentation

• Section 11.2 - Energy Cost Budget Method– Simulation General Requirements

• Simulation Program

• Climatic Data

• Purchased Energy rates

• Compliance Calculations

• Section 11.3 - Energy Cost Budget Method– Calculation of the Design Energy Cost

• Proposed Design Model

• Space Use Classification

• Buildings with Incomplete Energy System Designs

• Requirement for Both Heating and Cooling

• HVAC Systems

• Building Envelope

• Section 11.3 - Energy Cost Budget Method– Calculation of the Design Energy Cost (cont)

• Service Hot Water Systems

• Lighting

• Other systems

• Further Modeling Limitations and exceptions

• Schedules

• Thermal Blocks

• Section 11.4 - Energy Cost Budget Method– Calculation of the Energy Cost Budget

• Budget Building Design

• Building Envelope

• HVAC Systems

• Service Hot Water Systems

• Lighting

• Other Systems

• Summary of Compliance– Mandatory must be done– The envelope must pass without help from

mechanical or electrical– Prescriptive has many requirements, but

guarantees compliance– The ECB method uses lots of design time, but

allows much more design flexibility

Questions?

ASHRAE 90.1-2001 Arkansas Energy Code 2004 Compliance.

Documents

Transcript of ASHRAE 90.1-2001 Arkansas Energy Code 2004 Compliance.

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