SunLink Assembly Manual Rev L

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    ASSEMBLY INSTRUCTIONS FOR SUNLINK PV MODULEROOF MOUNT SYSTEM

    Notices and safety Page 2

    TABLE OF CONTENTS

    General procedure notes Page 4Installation materials and tools Page 5

    Part diagrams Page 5

    Elevation Views Page 7

    Assembly sequence Page 9

    Tilt bracket assembly and installation Page 10

    Substrate assembly Page 12

    Panel assembly:

    4x1 & 3x1 Page 13

    General module to spar grounding Page 17

    Tilt Access Feature Page 18Panel installation Page 19

    Lateral link assembly Page 21

    Wind deflector assembly Page 22

    Ballast pan installation Page 28

    Connector installation Page 32

    Spar field drilling Page 34

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    NOTICES AND SAFETY PRECAUTIONS

    Read this document before beginning installation work . Plan for safe practice during any installation activity with respect tohazards from tripping, falling, lifting, repetitive stress, and any overhead or electrical hazards. When working close to building roof edges, consider protection options that reduce worker exposure to fall hazards. Refer to OSHA Sub-Chapter 7, Group 1, Article 2.

    The SunLink Roof Mount System (RMS) is made from aluminum alloy, fastened together with stainless steel assembly hardware.Aluminum alloy components are manufactured per ASTM B209 and ASTM B221. 5052-H32 is used for sheetmetal components, andtempered 6000 series alloys are used for extruded components. In the forms used in SunLink, these materials are considered to benon-toxic. Metal components often have sharp edges. Handle carefully! Wearing gloves is good practice.

    This document is not prescriptive regarding safety and does not purport to address all the safety concerns that may arise with itsuse. Contractors should become familiar with all applicable safety, health and regulatory requirements before beginning work.

    Electrical safety notice

    Any time a SunLink panel contains two or more electrically interconnected modules, a shock hazard ispresent. SunLink is a mechanical system and contains no live parts. Mechanical installers and electricians should coordinate inorder to ensure that all personnel are aware of electrical hazards.

    Precedence

    The SunLink RMS positions and secures photovoltaic modules. DC stringing and interconnection of the modulesrequires placement of conduit, conduit ttings and combiner boxes. Nothing in this document is intended to limit the allocati on of rooftop space or to control crafts with respect to work precedence and coordination.

    Build rate

    Estimated mechanical installation rate (modules per day) for an array consisting of commercial-class modules installedwith a SunLink RMS and assuming a well-equipped four-person crew is on the roof and working 7.5 hours / day with full taskinterchangeability: > 120 modules / day.

    As-built documentation process

    On-roof use and mark-up of this document and the drawings and printed matter referred to inthis document is good practice. Mark up and annotate the drawings on a regular basis, noting completions, exceptions, dimensionalinconsistencies, etc.

    Field modi cations

    Unauthorized eld modication of SunLink components or assemblies may affect SunLink warranty coverage.Provide marked up drawings for SunLinks review, comment and approval prior to attempting any eld modications.

    Work arounds

    Workers laying out or installing arrays on rooftops may encounter undocumented or unexpected obstaclesrequiring a work around . Since PV arrays are intended to be primarily regular and repeating structures, work arounds should benoted on working drawings. When a work around affects the location of two or more modules at once, the supervisor should beadvised and the work around should be evaluated and then completed in a manner that ensures that the remainder of the array isnot affected.

    Roof surface

    All large at roofs have pitch and undulation, jointed assemblies, and may also have level separations and parapets.Various roof-mounted ttings, air vent pipes and equipment such as HVAC or process equipment may also be encountered. Theprecise location of many rooftop details is not known since such details are installed under conditions in which the worker orcontractor may have discretion regarding nal location.

    Fire Safe Roof The SunLink RMS is to be mounted over a fire resistant roof covering rated for the application. The SunLink RMS isnot meant for sloped roofs where the slope is greater than 1 :12 (7 or 12%).

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    Fit-up

    SunLink is a designed- t system and is assembled using fasteners and assembly bolt sets. Matching hole locations areengineered to ensure long-term reserve assembly strength and life cycle reliability. Since undulation and slope is required to ensureroof drainage, SunLink incorporates features that allow the array to follow the roof contour. Line-up for nal bolted connection

    typically involves light bucking in during assembly. A drift pin is a useful tool with which to align holes for cross-bolting.

    Roof life and care

    The service life of any roof is contingent upon care for the roof especially during equipment installation on aroof. Avoid concentrated loads on the roof. Never drag SunLink components into place. Instead, elevate the component, and thenmove it manually or with a cart. Locate it and then place it on spot. To ensure roo ng system warranty continuation, work withroo ng system installation contractors to ensure roong system array compatibility.

    WARNING! Single-ply roofs are not damage tolerant. Avoid accumulation of metal nes that result from drilling or sawing metalcomponents. Metal nes embedded in the soles of shoes can damage single -ply roofs.

    Fasteners All required fasteners are furnished with the SunLink RMS. All fasteners are 18Cr-8Ni stainless steel. For any assembly,nish initial

    bolted assembly to nger tight. Refer to the Installation Manual for detailed information on application. Button -headcap screws (BHCS) are precision, low-pro le fasteners. Use of air-powered tools that do not incorporate means to limit appliedtorque may damage the head of these fasteners and is not recommended.

    Final inspection Visually inspect assembled SunLink arrays, roof-mounted or ground supported. The suggested process consists of a row-by-row walk-through and then a perimeter walk-around, after mechanical assembly, before electrical completion. Report anydistortion in the assembly to SunLink. Array substrate supports should be in full contact with the roof or the ground. Any indicationof uneven distribution of weight should be evaluated and corrected before continuing with electrical nishing.

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    GENERAL PROCEDURE NOTES

    A. The SunLink system assembles modules into panels as follows:

    4x1 4 modules assembled into one panel3x1 3 modules assembled into one panel2x1 2 modules assembled into one panel

    B. Tilt brackets Tilt brackets are multi-function SunLink assemblies. Together with longitudinal links, tilt brackets make up the SunLink roof

    substrate. Tilt brackets enable free-standing array support and allow for mechanical anchoring. Tilt bracket bases can beadapted to any roof type. Tilt bracket covers set the array angle of incidence, connect SunLink panels to the substrate sub-system and establish array row spacing.

    Tilt brackets are con gured for easy eld assembly and are shipped in two parts. Tilt bracket covers are shipped in a semi-formed condition and need final forming to be completed on-site and are then attached to the tilt bracket bases. Thisminimizes on site storage and reduces shipping and handling bulk.

    Assembly time for tilt bracket is about 10 seconds. The assembly process is worker friendly. As is true for any precisionassembly, a light touch works best.

    Do not over-bend the tilt bracket cover.

    C. TILT ACCESS is a unique feature to SunLink that lets you ip the panels up and out of the way. During installation do not leave panels unattended in the tilt up position. Do not place panels in locked tilt up position if

    winds exceed 15mph.

    D. Temporary ballast At the end of every work day, ensure all components are securely attached. Temporary ballast (i.e. sandbags) may be

    required to secure the system to the roof during the installation process to prevent movement or damage due to wind.

    E. Safety For all day handling of aluminum components, wear gloves.

    Be careful of pinch hazards, especially when lowering panels onto tilt brackets

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    REQUIRED INSTALLATION MATERIALS AND TOOLS

    1. Minimum six (6) saw horses (e.g. Stanley 2 way adjustable saw horses, 32 high, 4 long and 29 wide. Stanley partnumber 11012)

    2. Torque wrench3. Cordless screwdriv er with torque adjustment4. Rubber mallet5. 1/2 wrench6. 9/16 wrench7. 1-1/8 wrench8. Hex bit drivers - 3/16, 5/32, 7/329. Drift pin10. Wire cutters11. Pliers

    PART DIAGRAMSSpar

    (aluminum extrusion)Longitudinal link

    (aluminum extrusion)Anchor block

    (aluminum extrusion)

    Lateral link(aluminum extrusion) Pivot block(aluminum extrusion) Clamp block(aluminum extrusion)

    Tilt bracket base(aluminum sheetmetal)

    Tilt bracket cover(aluminum sheetmetal)

    End row tilt bracket cover(Aluminum sheetmetal)

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    PART DIAGRAMS

    East wind deflector

    (aluminum sheetmetal)

    West wind deflector

    (aluminum sheetmetal)

    End East deflector

    (aluminum sheetmetal)

    End West deflector(aluminum sheetmetal)

    End disc(aluminum extrusion)

    Deflector clip

    (Stainless steel)

    Drill jig Long link clamp(stainless steel)

    Z Clamp Arm(stainless steel)

    Ballast pan(aluminum sheetmetal)

    Flashable post anchor (FPA)(machined/welded aluminum)

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    ELEVATION VIEW OF 5 SYSTEM (note tilt brackets are transparent for clarity)

    ELEVATION VIEW OF 10 SYSTEM (note tilt brackets are transparent for clarity)

    PV Module

    Tilt bracket

    Pivot block

    Anchor block

    End Disc

    Winddeflector

    Spar

    Clampblock

    Laterallink

    End row tilt bracket(smaller size than tilt bracket)

    Winddeflector

    North end row

    tilt bracket

    Anchor block

    Tilt bracket

    ClampblockPV Module

    Pivot blockEnd Disc

    Long Link

    Spar

    Tilt bracket

    End row tilt bracket(smaller size than tilt bracket)

    Long Link

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    ELEVATION VIEW OF 15 SYSTEM (note tilt brackets are transparent for clarity)

    ELEVATION VIEW OF 20 SYSTEM (note tilt brackets are transparent for clarity)

    Winddeflector

    Lateral link

    Clamp block

    Pivot block

    Anchor block

    End disc

    Spar

    Tilt bracket

    PV Module

    End row tilt bracket(smaller size than tilt bracke

    Lateral link

    Clamp block

    PV Module

    Pivot block

    End disc

    Spar Anchor block

    Tilt bracketEnd row tilt bracket(smaller size than tilt bracket

    Wind

    deflector

    End row tilt bracket(smaller size than tilt bracket)

    End row tilt bracket(smaller size than tilt bracket)

    Long link

    Long link

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    ASSEMBLY AND INSTALLATION SEQUENCE

    1. Assemble tilt bracket bending jig. 2. Assemble tilt brackets.3. Install tilt brackets and longitudinal links on roof.4. Lay out modules and spars on saw horses.5. Attach clamp blocks to spars.6. Attach modules to spars.7. Install grounding screws8. Attach pivot blocks and anchor blocks to spars.9. Attach panels to tilt brackets.10. Hook up module leads.11. Attach lateral links.12. Attach wind deflectors on north rows.13. Install end discs.

    14. Install ballast pans and/or connector post assemblies.

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    TILT BRACKET ASSEMBLY AND INSTALLATION

    Step 1. Tilt bracket jig assembly

    Before beginning assembly of the tilt brackets a bending jig must first be made which will ease assembly. (10 degree system shown)

    The bending jig is made as follows; take two tilt bracket covers and bend them over a longitudinal link (refer to Step 2), being carefulnot to over bend . Attach the tilt bracket cover to the tilt bracket base as shown in step 3 below. Attach a longitudinal link betweenthe two tilt brackets as shown below using two (2) 3/8-16 x 2.25 HHCS and 3/8 Hex nuts, (note: longitudinal link is only attached tothe upper hole in the tilt brackets when used as jig). The bending jig is now ready to be used.

    Step 2. Bend tilt bracket covers

    Lay a tilt bracket cover over the longitudinal link and bend the sides of the cover inwards, being careful not to over bend . The tiltbracket cover will have a little spring back.

    Longitudinal link

    Tilt bracket cover

    Parts Used

    Tilt bracket coverTilt bracket baseLong link3/8-16 x 2.25 HHCS3/8-16 Hex nut

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    Step 3. Create tilt bracket cover and base assembly

    Attach the tilt bracket cover to the tilt bracket base. Center the tilt bracket cover over the tilt bracket base and pinch the legs of thetilt bracket cover until the slots in the cover clear the locking tabs in the base. Allow the cover to expand with the locking tabs of thebase engaging with the slots in the cover. Push down on the center of the cover to complete engagement of tabs. Ensure all lockingtabs are engaged properly.

    Pinch cover and align locking tabs with slots Release and engage locking tabs, push coverdown to complete engagement

    Assembled tilt bracket

    Pinch slightly Release

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    SUBSTRATE ASSEMBLY

    Step 1. Create the substrate

    Set up tilt brackets at desired location and attach longitudinal links between tilt brackets as shown below. Use four (4) 3/8-16 x 2.25HHCS, eight (8) 3/8 flat washers and four (4) 3/8 hex nuts to attach the longitudinal link to the tilt brackets. Use a washer on eachside of the tilt bracket. Do not fully tighten the nuts. Repeat for second column of tilt brackets.

    Parts Used

    Tilt bracket coverTilt bracket baseLong link3/8-16 x 2.25 HHCS3/8-16 Hex nut3/8 Flat washer

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    PANEL ASSEMBLY (4x1 panel system shown)

    4x1 and 3x1 Panel Assembly:

    Step 1. Saw horse preparation

    Lay out saw horses as shown, distance between first and last saw horse should be approximately 12 shorter than spar being used.A spar can be set on ground beside saw horses and used as guide. Note: It may be helpful to place plywood sheets on the sawhorses to provide a larger work surface for holding tools and components.

    Step 2. Module and Spar Preparation

    Spars are used as the main component of the panel assemblies. Modules are affixed directly.Lay modules face down with an approximate module to module gap of 1.25. Lay two (2) spars on top of the edges of the modules.Orient modules such that junction boxes are in same direction for all modules .

    Spar

    PV Module

    Parts Used

    SparsClamp blocks5/16-18 x 1.25 BHCS3/8-16 x 2.25 HHCS3/8-16 Hex NutMounting fasteners:5/16-18 x .625 BHCS5/16 Hex flange nutOr -20 x .625 BHCSOr -20 Hex flange nut

    Orient and layspars on eitherside of the sawhorses

    Saw horse

    Orient spars

    PV Module

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    Step 3. Clamp blocks

    The clamp blocks are used to provide equal spacing between modules.Install three (3) clamp blocks per 4x1 spar and two (2) clamp blocks per 3x1 spar and 1 clamp block per 2x1 spar using one (1) 5/16-18 x 1.25 BHCS per clamp block. Leave clamp blocks loose .

    Clamp blockModule

    Spar

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    Step 4. Attach modules to spars

    Attach modules to spars in the orientation shown below. Depending on module and mounting hole diameter, use either four (4)5/16-18 x .625 BHCS or four (4) 1/4 20 x .625 BHCS with corresponding flange nuts per module. Spars with .28 mounting holesuse 1/4 screws and spars with .34 holes use 5/16 screws. Leave nuts loose . Once all bolts and nuts are installed, verify that theclamp block flanges are positioned flush over each module and square with the spar. Tighten all bolts to 11-14 ft lbs using cordlessscrewdriver. Ensure cordless screwdriver is set to the correct torque. During this process make sure the spars are seated, with nogaps, against the outside of the PV module frames.

    Step 5. Install pivot blocks to spars

    Install two (2) pivot blocks onto the first spar. It may be necessary to lightly tap the pivot block into place using a rubber mallet.Attach pivot blocks to spar using 3/8-16 x 2.25 HHCS, two (2) per pivot block. Tighten to 16-20 ft lbs.

    Side view of pivot block and spar.

    Pivot block

    Spar

    Pivot blockSpar

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    Step 6. Install the anchor blocks

    Install two (2) anchor blocks onto the second spar. Rotate anchor block so that grooved surface is facing modules. Attach anchorblocks to spar using two (2) 3/8-16 x 2.25 bolts and 3/8 hex nuts. Tighten to 16-20 ft lbs.

    Note: Depending on movement of panels on site, the anchor blocks can be attached to the tilt brackets first. The anchor blockswould then be attached to the spar after the panel is installed on the tilt brackets.

    Anchor block

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    General Module to Spar Grounding Recommendations

    Please refer to General Module to Spar Grounding Recommendations Rev A

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    TILT ACCESS FEATURE

    TILT ACCESS is a unique feature to SunLink that lets you ip the panels up and out of the way. This enables access to the undersideof the modules during installation and routine maintenance. To use the TILT ACCESS feature:

    1. Remove both 3/8-16x2.25 HHCSs from the Anchor Block/Tilt Bracket assemblies and one from each of the PivotBlock/Tilt Bracket assemblies (reference below image for exact hole locations).

    2. Lift the sub-assembly (4x1 and 3x1) up to 100 degrees. To hold the modules in position align the provided locking holes onthe Tilt Bracket with the locking holes on each Pivot Block.

    3. Place one 3/8-16x2.25 HHCS into the locking holes on each of the two tilt brackets.

    Note: TILT ACCESSfeature is allowed without additional support in wind speed less than 15mph.

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    PANEL INSTALLATION

    Step 1. Attaching the panel to the substrate

    Attach the assembled panel to the installed tilt brackets. Orient the assembled panel up 90 and guide the pivot blocks into the tiltbrackets on the south side.

    Step 2. Attaching the anchor blocks to the substrate

    Rotate the panel down and guide the anchor blocks into the north side tilt brackets. Install two (2) 3/8-16 x 2.25 HHCS with a 3/8flat washer into each anchor block and attach a 3/8 flat washer and 3/8 hex nut on each bolt. Do not tighten. Install two (2) 3/8-16x2.25 HHCS with 3/8 flat washers into each pivot block and fasten with 3/8 flat washers and nuts. Once all bolts are installedand panels are in correct position tighten all eight (8) mounting bolts to 16-20 ft lbs.

    Parts Used

    Assembled panelSubstrateEnd disc3/8-16 x 2.25 HHCS3/8-16 Hex nut3/8 Flat washer

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    Step 3. Installing end disc to substrate

    Install end disc into open end of each tilt bracket located on the south side of each SunLink column. Secure end disc with one (1)3/8-16 x 2.25 HHCS with two (2) 3/8 flat washers and one (1) 3/8 hex nut. Tighten to 16-20 ft lbs.

    End disc

    End row tilt bracket cover

    (South row)

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    LATERAL LINK INSTALLATION

    Lateral links are used to provide connection in the E/W direction and are an important component in the overall design of theSunLink RMS. Lateral links are located between panels where shown on layout drawing.

    Step 1. Attaching the lateral link to the spar

    Insert the lateral link within the spar channel of each panel and align mounting holes. Install two (4) 3/8 - 16 x 2.25 HHCS throughspar and lateral link (2 each end) and attach four (4) 3/8 hex nuts. Tighten to 16-20 ft lbs.

    Lateral link assembly

    Lateral link

    Spar

    Parts Used

    Assembled panelLateral link3/8-16 x 2.25 HHCS3/8-16 Hex nut

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    WIND DEFLECTOR ASSEMBLY

    Wind deflectors are installed on the North end of each SunLink column. Wind deflectors are also required when transitioning from a3x1 to a 4x1 or where a module is omitted. See layout drawing for wind deflector locations.

    North row wind deflectors

    All panels use two (2) wind deflectors per panel (1 East deflector and 1 West deflector). Wind deflectors are attached to the back of the spar and to the end row tilt bracket covers.

    Step 1. Installing deflectors to North row spar

    Install deflector mounting hardware to spars on North row. Install 5/16-18 x 1 HHCS with 5/16 flange nuts into each .344 hole onthe back leg of the spar, quantity varies depending on module type and whether a 4x1, 3x1 or 2x1 is being used. Torque to 14 -16 ftlbs.

    Note: this step can be done when the panels are being assembled during the panel assembly process if the panel is being used forthe North row.

    Exploded side view showing deflector attachment(Anchor blocks removed for clarity)

    Wind deflector

    Hardware

    Parts Used

    Assembled panelE and W DeflectorsDeflector clips5/16-18 x 1 HHCS5/16-18 Hex flange nut5/16-18 x .625 BHCS

    5/16-18x 1HHCS

    5/16-18Hex flangenuts

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    Step 2. Attach E/W deflectors to spars

    Attach east and west deflectors to spar using 5/16-18 flange nuts. Orient the deflectors such that the end tabs are facing out andare at the center of the 4x1, 3x1 and 2x1 panel. Torque to 14-16 ft lbs.

    End tabs of deflectors

    East winddeflector

    West winddeflector

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    Step 3. Attach deflector clips to end row tilt brackets

    Attach deflector clips to end row tilt brackets using two (2) 5/16-18 x .625 BHCS per deflector clip. Torque to 11 to 14 ft lbs.

    Side view of deflector to tilt bracket assembly

    Deflector clipgoes over lip ondeflector

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    Step 4. Connect E/W deflector tabsConnect east and west deflector end tabs at center of panel using 5/16-18 x .625 BHCS with flange nuts, quantity varies between 0and 4 depending on system. Torque to 11-14 ft lbs.

    Side view of north row assembly (10 system)

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    End wind deflector End wind deflectors are used when transitioning from a 3x1 to a 4x1 or when a module is omitted due to an obstruction. The endwind deflector is attached using the anchor block and lateral link holes.

    Step 1. Remove anchor block and spar fastenersRemove the two 3/8-16 x 2.25 HHCS anchor block to spar mounting screws on the side of the spar where the end wind deflectorwill be mounted. Remove the upper anchor block to tilt bracket 3/8-16 x 2.25 HHCS with washers and hex nut. Set fasteners aside.

    Step 2. Attach end wind deflector

    Attach the end wind deflector to the back of the spar. Install the two anchor block to spar mounting screws through the end winddeflector mounting holes. Insert two (2) 3/8-16 x 2.25 HHCS with 3/8 hex nuts removed in step 1 through the two mounting holes atthe end of the end wind deflector and into the lateral link holes on the spar. Torque to 14 -20 ft lbs.

    Remove these three3 fasteners

    End wind deflector

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    BALLAST PAN INSTALLATION

    One method of hold down for the SunLink RMS is ballasted. SunLink has various methods for ballasting the RMS which make use of commonly available pavers. Ballast pans are available in 3 different sizes, 12, 16 and 24. The 12 and 24 ballast pans aredesigned to work with 12 x 12 x 2 (nominal) pavers weighing 24 lbs each. The 16 ballast pan is designed to work with 16 x 8 x2 (nominal) pavers, weighing 18 lbs each.14 gauge (.08) stainless steel wires are tied to each side of the ballast pan are used to secure the pavers to the pan. Length of wirerequired will depend on ballast pan and number of pavers used, for example a 24 ballast pan with 8 pavers would requireapproximately 6 of wire per pan. 9 of wire is provided per pan for worst case.

    Note : A suitable waterproof adhesive can be used in place of the wire ties. Use adhesive to attach the pavers to the ballast pan andto attach pavers to pavers.

    Step 1. Place ballast pans

    Place ballast pan over longitudinal link and keep pan close to the North row tilt bracket cover.

    DIMENSION 12 BALLAST[IN]

    16 BALLAST[IN]

    24 BALLAST[IN]

    A 27.7 35.3 27.7B 12.00 16.0 24.0C 28.3 37.0 29.3D 6.0 8.0 12.0

    Ballast Pan

    Longitudinal Link

    Parts Used

    Ballast pan14 gauge SS wire

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    Step 3. Placing tie down wireLoop wire though hole on side of ballast pan and twist it around itself (two twists minimum) to secure.

    Step 4. Affixed tie down wirePull wire taut and loop through hole on other side of ballast pan and secure by twisting wire around itself (two twists minimum)

    Hole inballast pan

    Wire through holeand twisted arounditself

    Wire pulled taut andsecured each end

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    CONNECTOR INSTALLATION

    One method of hold down for the SunLink RMS is physically connecting it to the roof. The advantages of a connected SunLink RMSis reduced connector counts. Connectors are installed when extra attachment is required to attach the SunLink system to roofingwith minimum penetration.

    Step 1. Install Flashable Post Anchor (FPA)

    Attach flashable post anchor (FPA) to roof and add flashing.

    Section of roof with roofingmaterial removed to allowdirect access to substrate

    Backer board to bring connectorbase flush with deckDetermined and supplied byothers

    FPA

    Mounting screws(Roof attachment hardwaredetermined and supplied by

    others)

    FPA with flashinginstalledDetermined andsupplied by others

    Parts Used

    Flashable Post Anchor (FPA)Z-clamp arm (ZCA)Long link clamp-10 x 1.5 HHCS Flat Washer5/16-18 x .625 BHCS5/16 Hex flange nut

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    Step 2. Install Z-Clamp Arm (ZCA) to long link

    Connect Z clamp arm to long link using long link clamp and four (4) 5/16 x .625 BHCS with 5/16 flange nuts. Do not tighten nuts.

    Step 3. Install ZCA to FPA

    Connect Z clamp arm to FPA and secure with 3/4 -10 x 1.5 HHCS and flat washer. Tighten to 30-40ft lbs. Tighten 5/16" nuts on longlink clamp to 11-14 ft lbs.

    Z-clamp arm

    Long linkclamp

    Flashablepost anchor

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    Method A Drilling the spar before assembly.

    Determine which side of the 4x1 spar needs the extra mounting holes before beginning.

    Step 1. Lining up sparsLay a 3x1 and 4x1 spar back to back and align one set of anchor/pivot block holes on the 3x1 with the matching holes on the 4x1.

    Step 2. Affix spars togetherClamp and bolt spars together to maintain alignment.

    4x1 spar

    3x1 spar

    Align holes

    Side view

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    Assembly instructions for SunLink roof mount system- Rev L Page 36 of 38

    Step 3. Affix drill jigConnect the drill jig to the 3x1 spar at the second pivot/anchor block location. Tighten thumbscrew to secure the drill jig to the spar.

    Step 4. Drill sparUsing the drill jig as a guide, drill two 13/32 holes through 4x1 spar. Debur edges on both sides.

    Drill jig

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    Assembly instructions for SunLink roof mount system- Rev L Page 37 of 38

    Method B drilling spars after system is mounted on roof.

    Step 1. Connecting using an anchor block

    When connecting on north side using an anchor block:

    Use anchor block as a guide to ensure that the drill jig is in the correct location. Push drill jig into spar until it stops. Secure drill jigto spar using jig thumb screw. Drill two 13/32 holes in 4x1 spar. Debur edges on both sides.

    Tilt bracket of

    3x1

    4x1 North sidespar

    Anchor blockused as guide

    Drill jig

    Drill jig thumbscrew

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    Step 2. Connecting using a pivot blockWhen connecting on south side using an anchor block:4 x1 panel may need to be rotated up to gain access to inside of lower spar.

    Use anchor block as a guide to ensure that the drill jig is in the correct location. Push drill jig into spar until it stops. Secure drill jigto spar using jig thumb screw. Remove anchor block, Drill two 13/32 holes in 4x1 spar. Debur edges on both sides.

    Note: Anchor block is only used as a guide, a pivot block will be used to connect the 3x1 tilt bracket to the 4x1 spar.

    4x1 south sidespar

    Drill jig

    Anchorblock usedas guide

    Drill jigthumbscrew