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SUNPOWER <br />SunPower SF System <br />Planning and Assembly <br />Installation Manual <br />SUNPOWER CORPORATION WWW.SUNPOWERCORRCOM <br />Pub•101001 SIC <br />**Or,10· 1..8 <br />20,01.St.,14.--0.p <br />All,ightsiesened <br />S U N POW E R SF System Planning and Assembly Installation Manual <br />Part I. Scope, components, and installer responsibility <br />[1.1.] Introduction: <br />The SunPower SF System Installation Instructions supports applications for photovoltaic arrays <br />using the SunPower PV module mounting systems. <br />This manual, SunPower SF System Planning and Assembly, governs installations using the <br />SunPower SF system. <br />[1.2.] SF System standard rail components: <br />0 2 Fgurel. SES>·stemcomponents. <br /> Rail-Supports SunPower modules. Use one per row <br />of modules plus one. Aluminum extrusion, anodized to <br />match PV module frame. <br />O Cap strip (type F)-Secures PV modules to rails and <br />neatly frarnes top of array. Lengths equal raillengths. <br />Predrilled every 7 inches. Aluminum extrusion, anodized <br />to match PV module frame. <br />0 Cap strip screw 04-20 x 1,1ype F thread cutting)- <br />Secure each cap strip (and SunPowermodules) to <br />rail, one per predrilled hole. Use additional end screw <br />wherever a prcdrilled hole does not fall within 3-1/2 <br />inches of the cap strip end segment. 18-8 stainless steel. <br /> Rail splice-Joins rail sections into single length of rail. <br />It can form either a rigid or thermal expansion joint. 8 <br />inches long, predrilled. Aluminum extrusion, anodized to <br />match PV module frame. <br /> Self·drilling screw (No. 10 x 3/4")-Use 4 per rigid <br />splice or 2 per expansion joint. Stainless Steel <br /> End caps-Use one to neatly close each rail end. UV <br />resistant black plastic. <br />@ Truss·head sheet metal screw (No. 8 x 5/89-Use 2 <br />per end cap to secure end cap to rail. 18-8 stainless steel. <br /> L-foot (Serrated)-Use to secure rails either through <br />roofing material to rafters or to standoffs. Use no less <br />than one L-foot per 4 feet of rail. Aluminum extrusion, <br />anodized to match PV module frame. <br /> L.foot bolt (3/8" x 1-1/4")-Use one per L-foot to secure <br />rail to L-foot. 304 stainless steel. <br />® Flange nut ( 3/89 -Use one per L-foot bolt. 304 <br />stainlesssteel. <br />® Two-piece aluminum standoff -Use one per L-foot. <br />Two-piece: aluminum extrusion. Includes 3/8" x 3/4" <br />serrated flange bolt with EPDM washer for attaching <br />L-foot, and two 5/16" x 3-1/2"lag bolts. Flashings: Use <br />one per standoff. SunPower offers mutiple flashings. <br />® Grounding Lug <br />® Wire Management Clip - Use to secure module wires tomodule. Stainless steel. <br />Installer supplied materials: <br />Lag screw for L-foot-Attaches L-foot or standoff to <br />rafter. Determine length and diameter based on pull-out <br />values in Table 3 (page 6). If lag screw head is exposed to <br />elements, use stainless steel.Under flashings, zinc plated <br />hardware is adequate. Note: Lag screws are provided with <br />L-foot adjusting sliders and standoffs. <br />Waterproof roofing sealant-Use a sealant appropriate <br />to your roofing material. <br />TO