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SFSystem Planning and Assembly Installation Manual SUN POWER SFSystem Plannii andAssemb(y Installation Manual <br />1 1 <br />9. Installing the end caps: <br />Attach the end caps to the ends of the rails by securing with <br />the truss head sheet metal screws provided (Fig. 10). <br />Part III. Installing grounding <br />[3.1.] Install grounding lugs to modules:Figure 11. <br />.ruunuing Lug <br />Rails may be grounded in three ways: <br />1. Grounding hole located on splice bar <br />2. Pre-drilled holesatend of rail <br />3. Field drilled hole on the rail <br />[3.2.] Installing grounding lugs to rail: <br />Figure 10. End cap installation. <br />Frequently asked questions about standoffs and roof variations <br />Drill hole 0.201" (#7 drill) intothe SFrailand attach <br />grounding lug using a #8 x 1 0 stainless steel bolt <br />For optimal performance, Sunpower PV modules <br />must on*be used inconjigurations where th£ <br />positive potarity of the PV array is connected to <br />ground. Amure to comply with this requirement <br />will reduce thepedormance qfthe system and <br />Invalidate SunPower's Limited Power Warruntyfor <br />PVModules. <br />How high above the roof is an array? <br />The answer depends on the orientation of your L-feet and <br />the length ofyour standoffs, if used. See the illusua!ion <br />appropriate to your installation. <br />How can 1 seal the roof penetration required when <br />standoffs are lagged below the roofing material? <br />Many types and brands of flashing can be used with SP <br />System. SunPower offers Oatey®"No-Call" flashings for <br />its steel standoffs and Oatey® or SunPower flashings for its <br />aluminum two-pieee standoffs. <br />Module <br />thickness <br />Figure 12. <br />For morewormationon grounding thesystent <br />correctly, visitourwebsite ativww.sunpowercorp. <br />conVinwerters or contaaSunPowertechnical <br />support at 1-877-SUN-0123. <br />varies <br />4 <br />Module <br />thickness <br />va,ies <br />-3 7/8.2 1/8- <br />t <br />34- 4 Standon height .L= <br />134-* 14-0-.4-.6-.0,7-01* 14-1 1 <br />11 <br />..