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:PUNIRAC Unirac Code-Compliant InstaUation Manual SolarMount <br />[3.2.5] Installing the modules <br />Pre-wiring Modules: If modules are the Plug and Play type, <br />no pre-wiring is required, and you can proceed directly to <br />"Installing the First Module" below.-+0--** <br />If modules have standard J-boxes, each module should be .' <br />installation. For safety reasons, module pre-wiring should not be f % 14pre-wired with one end of the intermodule cable for ease of 1 IP,/2, <br />performed on the roof. <br />,Leave covers off J-boxes. They will be installed when the '-17 <br />modules are installed on the rails.Lf J-boxes <br />Installing the First Module: In high-profile installations, the <br />best practice would be to install a safety bolt (¥4"-20 X V2")and <br />flange nut (both installer provided) fastened to the module bolt <br />slot at the aligned 0ower) end of each rail. It will prevent the <br />lower end clamps and clamping bolts from sliding out of the rail <br />slot during installation. <br />Figure 17 <br />1/2" minimum <br />4 - <br />Module frame <br />If there is a return cable to the inverter, connect it to the first <br />module. Close the J-box cover. Secure the first module with -r <br />T-bolts and end clamps at the aligned end of each rail. Allow . <br />half an inch between the rail ends and the end clamps (Fig.18). .......... <br />Finger tighten flange nuts, center and align the module as <br />needed, and securely tighten the flange nuts (10 ft lbs).End clamp 232"- <br />1/4" module bolt <br />and flange nut <br />L Rail <br />Installing the Other Modules: Lay the second module face <br />down (glass to glass) on the first module. Connect intermodule <br />cable to the second module and close the J-box cover. Turn the <br />second module face up (Fig. 17). With T-bolts, mid-clamps and <br />flange nuts, secure the adjacent sides of the first and second <br />modules. Align the second module and securely tighten the <br />flange nuts (Fig. 19). <br />For a neat installation, fasten wire management devices to rails <br />with self-drilling screws. <br />Repeat the procedure until all modules are installed. Attach the <br />outside edge of the last module to the rail with end clamps. <br />Trim offany excess rail, being careful not to cut into the roof. <br />Allow half an inch between the end clamp and the end of the rail <br />(Fig <br />Figure 18 <br />Module frames0 + <br />, 1/4"module bolt- - 1 ,/'- and flange nut <br />| -- Mid clamp <br />*L Rail <br />.18). <br />11 <br />High4ipped module <br />Spacer(cross section) <br />i <br />SolarMount rail <br />4 * <br />12 <br /> Low-lipped moduleJI <br />(cross section) <br />1 1/ <br />4 ' <br />Solarl.Jt rail <br />/ <br />Figure 20. Mid clamps and end clampsfor tipped-frame modules are identical A spacerfor the end clamps is necessal:yonly if the lips are <br />located high on the moduleframe. <br />0 <br />Figure 19 <br />Page <br />20