Panasonic VBHNxxxSJ25 series General Installation Manual

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Panasonic VBHNxxxSJ25 series General Installation Manual Manual pdf 9 page image

9MODULE INSTALLATION Install modules where they are notshaded by obstacles like buildings ortrees. Especially pay attention toavoid partially shading the modulesby objects during the daytime. If apart of the PV module is alwaysshaded, hot spot may occur and thePV module may break down. Water stains might be caused whenrain water remains on the glasssurface for a long time. To avoidwater stains, Panasonic recom-mends to install panels at a slopesteeper than the water gradient. Modules should be firmly fixed inplace in a manner suitable to with-stand all expected loads, includingwind and snow loads. The modules should be mountedbasically at the four (4) quarterpoints by the means shown in Figure1, and based on installation meth-ods shown in Figure 5-1, 5-2. Metals used in locations that areexposed to moisture shall not beemployed alone or in combinationsthat could result in deterioration orcorrosion. Clearance 100mm between the roofsurface and module frame is re-quired to allow cooling air to circu-late around the back of the module.This also allows any condensation ormoisture to dissipate. Install mod-ules so that air can circulate be-tween the roof and the module. Do not contact a tip of a mountingbolt to back sheet of the modulewhen fixing the module to themounting structure rail. Appropriate material should beused for mounting hardware (themodule frame, mounting structure,and hardware) to prevent itselffrom corrosion. Please contact your Panasonic Au-thorized Representative with ques-tions regarding mounting profilesfor modules if needed.Figure 5-1. Module Installation (VBHNxxxSJ25)Solar ModuleModuleMounting Structure RailM6 BoltSpring washerM6 NutFlat washerFlat washerSpring washerSolar ModuleMetal clamp B(2 places)Metal clamp A(2 places)MountingStructure Rail38mm38mm35mm11mmInstallation (reference)For questions regarding mounting profiles for modules,Please contact your local dealer.