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:FUNIRAC Unirdc Code-Compliant Installation Manual SolarMount <br />[3.3.1] Planning the installation area <br />Distance between <br />lag boll centers <br />Decide; on:an arrangement for clips, rails, and L-feet (Fig. 22). <br />Use Arrangement A if the full width ofthe rails contacts·the <br />m,d ule. Otherwise use Arfangement B. <br />Caution: Ifyou choose Arrangement B, either <br />(1) use the upper mounting holes o.fthe L-feet or <br />(2) be certain that the L-feetand clippositions don't <br />conflict. <br />-2*r29" --2%123.!'- <br />-- Distance between - <br />module mounting holes <br />9 + PV module <br />Module boll Clip- <br />#1If rails must be parallel to the rafters, it is unlikely that they <br />can be spaced tomatchrafters. In thatcase, add structunal <br />supports -!either sleepers over the roof or mounting blocks <br />beneath it. These additional members must meet code; if in <br />doubt, consult a professional engineer. <br />£=gj Rail <br />L-foot -LILA <br />Distance between <br />- lag bolt centers- <br />bag boll <br />Never secure the footings to the roof decl<ing alone. Such an <br />arrangemeht will not meet code and leaves the installation <br />iand the roof itself vulnerable Lo severe damage from wind. <br />%-7811 - - --2-31 <br />- Distance between - <br />module mounting holes <br />Leave enough room to sofely move around the array during <br />:ihstallation. The w idth of a rail-module assembly equals the <br />length of one modula Note that L-feet may extend beyond <br />the w idth of the assembly by as much as 2 inches on each <br />side. The length of the assembly equals the toni] width of the <br />modules. <br />41 e <br />T <br />Figure 22. ClipArrangementsAand B <br />Pa,e <br />22