NSP D6M B1A Installation Manual
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4 Ver. 0.2system. Have your installer perform the necessary steps to bring the PV system back into a safecondition.Mechanical Installation- The design and installation of photovoltaic systems shall be in accordance with the National ElectricalCode (NEC), the Canadian Electrical Code (CEC) and the national regulation of the country where themodules will be installed.- To install the modules in proper direction such as facing south in northern latitudes and north insouthern latitudes for best power output.- Please note that any shadows cast by the modules do not fall on other modules behind them. This canhave adverse effects on overall system performance or may result in permanent damage to modules.- Do not modify the PV module frames mechanically or chemically. It will void the warranty.- Clearance between the module frame and mounting surface may be required to allow the coolambient air circulating behind the module. It is necessary for optimum module performance.- All fasteners (nuts, bolts, washers, screws, etc.) must be stainless steel made unless otherwisespecified (it should use corrosion-proof fixing material).- The module mounting structure must be made of durable, corrosion-resistant and UV-resistantmaterial.- There are two approved methods to mount NSP modules to the supporting structure. For all mountingmethods, a minimum gap between the modules of 5 mm is required to allow for thermal expansion.Method (1) : Attachment Using Screw- Each long side frame has 4 mounting slots with dimension of 9 x 14 mm used to secure the module tosupporting structure, as shown in Fig. 1.1.- For normal installation, modules must be securely fastened to the mounting structure using at least 4symmetrical mounting slots for normal installation as shown in Figure 1.2. If additional wind or snowloads are anticipated for this installation (≤ 5400 Pa), additional mounting slots are also needed asshown in Fig. 1.3.- The module frame must be fastened to supporting structure using M8 stainless steel hardwaretogether with spring washers and flat washers (all fitting components must be corrosion-proofmaterial) as shown in Fig. 1.4.- The applied torque is about 8 N-m.- Here the standoff method or the rack method is recommended. The recommended stand-off height is140 mm as shown in Fig. 1.5. |
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