© 2015 SunEdison
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3.2 Module Installation Options
For bolt and clamp mounting locations and allowable load
capacities, please refer to the table on pages 6-7.
• Each module should be mounted using four bolts
through the mounting holes on the rear side of the
module, or with four clamps over the front side, within
the region specified as shown in the mounting diagram
below.
• Depending on the desired load capability of the array,
modules may be mounted either perpendicular or
parallel to the structure rails. Clamps can be mounted
anywhere inside of the safe mounting range for each
case illustrated in the table on pages 6-7.
• If using bolts, use a bolt stack no smaller than ¼"-20
or M6, with two flat washers and a locking washer as
shown in Appendix 7.1.
• To ensure an adequate clamping area, all clamps must
be able to clamp within the range specified in the table
on pages 6-7. All fasteners used to fix the modules with
clamps should be no smaller than ¼”-20 or M6.
• To provide adequate fixing or clamping force, torque the
fasteners to the manufacturers torque specifications.
• For all cases, the area of the supporting structure in
contact with rear side of the module must comply with
the dimensions specified in Appendix 7.1.
• All other structural dimensions, such as clamp and rail
thickness, should be sized appropriately for the intended
site load.
3.3 Module Installation Using Center
Mounting Brackets
• Modules may also be mounted using center clamps as
shown in Appendix 7.2, for use with trackers.
• Center mounting clamps must meet SunEdison
approved extrusion and hardware requirements.
• For module loads higher than 2400 Pa, module clamps
and hardware must be pre-approved by SunEdison.
• SunEdison approved center clamps utilizing M8 bolts
are to be tightened to 9.2-11.9 N·m (6.8-8.8 ft·lbs).
• Mechanical structures should not contact the module
backsheet under any expected load conditions.
• Ensure that frame weep holes (see Appendix 7.1) are
not obstructed by the mechanical installation.
• Mechanical installation of the module shall not cause
the frame to torque more than 38 mm.
• A minimum clearance of 152 mm is required between
the roof and bottom of the module frame.
