2020 Installation Guide

BI 7.2.3-46
Feb-2021, Rev 14
BI 7.2.3-46
Feb-2021, Rev 14
24
6.3 Installing the End Modules
Mounting Steps, Fixed Height End Clamps:
•
Place and align an outside module. The QRail must extend beyond
the module frame by a minimum of 1.2 in.
•
Insert the QClick of the end clamp into the channel of the QRail.
•
Push the module end clamp flush to the module frame.
•
Tighten the bolt to 8 -Lb (11 N-m), thus clamping the module.
Mounting steps, Universal End Clamps:
•
Place and align an outside module. The QRail must extend beyond
the module frame by 1.2 in. (30 mm).
•
Insert the QClick of the end clamp flush against the module frame.
The lip of the upper clamp body should be flush against the edge
of the module.
•
Ensure that the lower section of the clamp body sits squarely on the
top of the rail.
•
While holding the upper clamp body against the module and the
lower clamp body, tighten the clamp bolt to 96 in-lbs (11 N-m).
DANGER
Material damage due to incorrect installation
Incorrectly mounted clamps are a hazard to the integrity of the PV system. PV modules can fall and
be damaged. Mount all clamp connections in accordance with the instructions.
• Make sure the clamps are installed correctly.
• Ensure the module is installed flush and tight against the side of the end clamp.
• Ensure proper torque of the end clamp mounting bolt [96 in-lbs (11 N-m) for fixed height and
universal end clamps or 108 in-lbs (12 N-m) for hidden end clamps].
1 2 3
Image 6.3.2
Image 6.3.3
End Clamp installation
Image 6.3.1
Part Number Finish Clamping Range (mm)
QMR-UEC3045-A-20 mill 30-45
QMR-UEC3045-B-20 black 30-45
The end modules of the PV system are fastened on the outer side with two module end clamps each. Three types of module
end clamps are available from Quick Mount PV. Fixed end clamps are sized to fit a particular module thickness and will not
work on modules of other thicknesses. Hidden End Clamps (P/N QMR-HEC-A-20) will work on almost all modules with a
flange in the acceptable clamping zone. Universal end clamps are designed to fit 2 ranges of module thicknesses. Universal
end clamps are available in either mill or black finish in the following size ranges: