9628 Valley Blvd. Rosemead, CA 91770 | Phone 626-579-3288 | [email protected]
SWH Solar Racking Installation Guide | Version 12.10.v2
34
[3.2.9] Installing the modules
Figure 17
1/2” minimum
End clamp
Module frame
1/4” module bolt
and flange nut
Rail
Figure 16
J-boxes
Figure 18
Module frames
Mid clamp
Rail
1/4” module bolt
and flange nut
Pre-wiring Modules:
If modules are the Plug and Play type, no
pre-wiring is required, and you can proceed directly to “Installing
the First Module” below. If modules have standard J-boxes, each
module should be pre-wired with one end of the intermodule cable
for ease of installation. For safety reasons, module pre-wiring should
not be performed on the roof. Leave covers off J-boxes. They will
be installed when the modules are installed on the rails.
Installing the First Module:
In high-profile installations, the best
practice would be to install a safety bolt (¼”-20 x ½”) and flange nut
(both installer provided) fastened to the module bolt slot at the
aligned (lower) end of each rail. It will prevent the lower end clamps
and clamping bolts from sliding out of the rail slot during installa-
tion.
If there is a return cable to the inverter, connect it to the first
module. Close the J-box cover. Secure the first module with T-bolts
and end clamps at the aligned end of each rail. Allow half an inch
between the rail ends and the end clamps (
Fig.17
). Finger tighten
flange nuts, center and align the module as needed, and securely
tighten the flange nuts (10 ft lbs).
You
MUST USE
the correct end clamps for the corresponding
modules thickness
(Fig.19)
. End clamps have been designed to
slightly tilt inwards
(Fig.20).
Incorrect use will lead to structure
failure.
You
Must Use
same height modules for mid clamps to properly
secure modules
(Fig. 21, 22 & 23).
Figure 19. End Clamp Sizes
Figure 22 Grounding Mid Clamp Sizes
Figure 20. Check End Clamp Fit
Figure 21. Check Mid Clamp Fit
Figure 23. Check Grounding Mid Clamp Fit
MODEL #
EA-SW-GM-25B
EA-SW-GM-25K
EA-SW-GM-25E
50MM
60MM
70MM
<=32mm
33-42mm
43-50 mm
T-BOLT LENGTH
MODULE HEIGHT
MR-SW-EC-35
MR-SW-EC-35B
MR-SW-EK-40
MR-SW-EK-40B
MR-SW-EF-45
MR-SW-EF-45B
MR-SW-EE-50
MR-SW-EE-50B
“C” end clamp
“C” black end clamp
“K” end clamp
“K black end clamp
”F” end clamp
“F” black end clamp
“E” end clamp
“E” black end clamp
Part Number
Part Name
34-36
34-36
39-41
39-41
44-46
44-46
49-51
49-51
.054
.054
.056
.056
.058
.058
.060
.060
Range of
Heights
(mm)
Weight
(lbs)
(without Hardware)
All SWH end and mid clamps are intended for MULTIPLE USES
at same or different module frame locations.
INCORRECT
CORRECT
