SnapNrack S100 Installation Manual

Text of SnapNrack S100 User Guide:

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual | 15 Be sure to drill the hole deep enough to penetrate the roof decking and enter the rafter by1to1½inches.Ifthedrill pushes through at this point, you have likely missed the rafter and shouldmove½inchlaterallytowardwhere you estimate the rafter to be and try again. See Fig 3.3 for L-foot mount assembly details. 3.4 Secure base Apply a bead of sealant to the underside of the L-foot base and into pilot hole. Screw 5/16-inch lag bolts with lag bolt washers intothepilotholesandtightenwitha½-inch socket. Using a socket adapter bit in a powe

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 10 | • Measurethespacingbetweenthe rafters. • Ifyoundstructuralproblemssuch as termite damage or cracked rafters that may compromise the structure’s integrity, consult a structural engineer. Determine the design wind speed and site specic conditions for the site and reference the structural engineering tables (see section 13: Appendix) to determine the maximum allowable rail span for this site. If you are unsure about the local design wind speed, consult with the local building jurisdiction. 2.5 Lay out system on

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 18 | 4.2 Determine type and size of attachment and ashing Based on the construction type, style of the roof, and type of ashings to be used, determinethesizeofstandosneeded. As a general rule, standos should be approximately2½inchestallerthanthecone of the ashing selected for the roof type. Some typical roof ashing heights are shown in the list at the beginning of this section: Roof Type Flashing Type Flashing Height Stando Height Composition LowproleOatey 3inches 5½inches Shake,Wood

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual | 35 secure it with end clamps to nish the row and repeat the process for the next row of modules. 10.3 Connect wiring Connect module leads and train the wires into the rail channels as the modules are being installed. This will ensure a clean, robust electrical installation with no dangling wires. Use module lead clips as necessary to insure that module leads are secured to module frames until they drop into the rail channel. SnapNrack rail cover can be used to help ret

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 28 | page. This conguration uses a standard length stando for both upper and lower rails and adds an extension to the stando supporting the upper rail using a section of rail cut to the appropriate length and drilled with two holes. Calculate the length of the upper rail stando extension to provide the desired module tilt angle. If the length of the cut rail exceeds 4 feet, consult a structural engineer before proceeding. Tilt leg rails can be cut and drilled ahead of time to save time

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 6. TILT MOUNT (USING STANDOFFS AND EXTENSIONS) .....................................................................27 6.1 INTRODUCTION .......................................................................................................................................27 6.2 DETERMINE TYPE OF TILT ASSEMBLY ...............................................................................................27 6.3 SHALLOW TILT KITS .....................................

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual | 29 for the two rails to provide a ush mounting surface for the modules at the desired module tilt angle. 4 Note that when tall tilt angles are used, the upper rail may seem a bit precarious until the rst two or three modules are installed. Take care that you don’t put excessive force on the rear leg standos such as to compromise their integrity over the duration of the installation. Proceed with installing mounting rails and modules in Section 7. 6.5 Installing on L-feet In some case

• | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 22 | rafters are only 1.625 inches thick, so you should always attempt to hit a wooden rafter in the center if possible. 4.8 Attach stando and install ashing Screw stando shaft onto the base and tighten. Install ashing over the stando shaft and base using standard building practic

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 14 | 3.2 Locate attachment points The location of the attachment points for L-foot mounts depends on the orientation of the modules relative to the rafters as shown in this diagram. Using the array layout plans and the estimated rafter locations, as described in the previous section 2.5. Determine location of all attachment points and mark the holes for each L-foot base. 3.3 Drill pilot holes Conrm the location of the rafters by drilling pilot hol

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 32 | 9.3 Additional leveling for stando mounted rails An additional 1 inch or 2 inches of height can be added by installing one or two 1-inch stando spacers to the top of the stando shaft. When it is necessary to use spacers, adjust the level as follows: • Removestandoclamporsimplyslide down stando shaft. • Screw1-inchthreadedstudintotop of stando so that

• SnapNrack S100, | SnapNrack TM SERIES 100 Roof MounT InSTallaTIon Manual 12 | Transfer rail and estimated attachment locations to the roof, noting that attachments will be located at intersections of rails and rafters. Layout rails such that module frame ends do not overhang mounting rails by more than 25% of total module frame length. Verify that mounting rail spans are in accordance with the rail span tables in the Appendix at the back of this manual (section 13). Verify that rail ends do not overhang by a dis

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