Installation Guide

Step 4: Installing PV Modules to Module Rails
PV Modules are secured to the Module Rails using 1/4” x 3/4” bolts and hardware.
A. Place the PV Module on the Module Rails. Align the mounting holes and
secure with 1/4” x 3/4” bolts and hardware. Each Module has four
attachment points. Finger-tighten for now. (See Figure 4-1)
B. Continue in this manner and install the remaining PV Modules.
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CAUTION:
This is a two
person activity. PV
Modules are
heavy and
unstable before
they are fully
secured to the
Module Rails. PV
Modules must be
held in place by
one person while
the second person
aligns and
secures them to
the Module Rails.
Failure to do so
could lead to
serious personal
injury and
damaged
components.
CAUTION:
Be certain to re-
tighten all Module
Rail and PV
Module mounting
hardware and
torque to the
specified values.
Failure to do so
could lead to
structural failure,
damaged
components
and/or serious
personal injury.
Figure 3-1: Attaching Module Rails
3/8” Boltx 1”
Flat Washer
Module Rail
Support
Angle
Flat Washer
Lock Washer
3/8” Hex Nut
Figure 4-1: Installing PV Modules to Module Rails
1/4” x 3/4”
Bolt
Lock Washer
Flat Washer
Flat Washer
1/4” Nut
Module
Module
Rail
Step 5: Now return and tighten mounting hardware.
A. Return and tighten each set of the 3/8” mounting hardware, securing the
Module Rails to the Support Angles.
B. Return and tighten each set of 1/4” mounting hardware, securing the PV
Modules to the Module rails.
Torque all at 32-34 ft.-lbs.
Torque all at 6-8 ft.-lbs.
NOTE:
Finger-tighten the
Module Rails to
the Support
Angles while
installing. After the
Modules are
installed re-tighten
to specified torque
values.
Assembly Instructions, Top-of-Pole Mount for 4 Modules (TPM4) For Module Types A & B (Version 2, Rev D)