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1 1 <br />SUPOVER <br />SunPower SF System <br />Planning and Assembly <br />Installation Manual <br />SUNPOWER CORPORATION WWW.SUNPOWERCORRCOM <br />HIXViTITMI SFSystem Planningand Assembly Installadon 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 />To <br />Agum l. Sy S,stern components. <br /> Rail-Supports SunPowermodules. Use one perrow <br />of modules plus one. Aluminum extrusion, anodized to <br />match PV module frame. <br /> Cap stlip(type F)-Secures PVmodules toraili and <br />neatly frames top of array kngths equal rail lengths. <br />Predrilled every 7 inches. Aluminum extrusion, anodized <br />to match PV module frame. <br />0 Cap strip screw (V.-20 x 1, type Fthread cutting)- <br />Secure each cap strip (and SunPower modules) to <br />rails one per predrilled hole. Use additional end screw <br />wherever a predrilled 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 mil <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 *3/47-Use 4 per rigid <br />splice or 2 per expansionjoint. Stainless Steel <br /> End caps-Useone to neatlyclose eachrailend. UV <br />resistant black plastic. <br />@ Thtss-head sheet metal scrnw (No. 8 x 5/89-Use2 <br />per end cap to secure end cap to rail. 18-8 stainless steel. <br />O 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/rx 1-1/47-Useone per L-footto secure <br />rail to L-foot 304 stainless steel. <br />® Flange nut (3/89-Use one perl,footbolt. 304 <br />stainless steel. <br />® l'wo-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 to <br />module. Stainless steel. <br />Installer supplied materials: <br />Lag screw for L-foot-Attaches L-foot or standoffto <br />rafter. Determine lenglh and diameter based on pull-out <br />values inlable 3 (page 6). Iflag screw headis exposed to <br />elements, use stainless steel. Under flashings, zinc plated <br />hardware is adequate. Note: Lag screws are provided with <br />1, foot adjusting sliders and standoffs. <br />Waterproof roofing sealant-Use a sealant appropriate <br />to your roofing material. <br />SunPower Installation Manual <br />I. E