Off Grid Installation Manual

INSTALLATION MANUAL GUIDE | DATE: 02/2017
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c) Module tilt angle
Modules produce the most power when they are pointed directly at the sun. For
installations where modules are mounted to a permanent structure, modules should be
titled for optimum
winter performance. As a rule, if the PV system power production is adequate in the
winter. It will be satisfactory during the rest of the year. The module tilt angle is measured
between the modules and the ground.
d) Mounting
Mounting support structure should withstand forces from wind and snowfall pressure etc.
Mounting support structure should use proper materials and corrosive treatment.
Installation the modules should has proper ventilation. A clearance of 4.5 inches (about
115mm) or more behind the modules is recommended to permit air circulation and cooler
module operation. Elevated temperatures lower operating voltage and power, and
shorten module lifetime. Clearance of 1/4 inch (6.35mm) or more between modules is
required to allow for thermal expansion of the frames.
d.1) Mounting using bolt holes
Use fasteners to fasten the modules to the mounting support structure. Modules
should be bolted to support structures through mounting holes located in the
frame’s back flanges only. Stainless-steel bolts, with nuts, washers, and locks
washers, are recommended for module mounting. Creation of additional holes for
mounting is not recommended and will invalidate the warranty.