Polar Bear III HD 5 Degree Installation Manual
9910034 Rev F
14
Figure 8 Install Required Ballast
Step
4
:
Install Array Row
-
By
-
Row
4.1.
Place two Supports for each module at their approximate final resting location. Supports and
Ballast Trays may be pre-assembled similar to the most northern row procedure. Ensure the
correct length Ballast Tray is used in each assembly and placed where needed in each row.
Ballast may also be installed prior to module installation once Support and Ballast Tray
assemblies are distributed on the roof at their final resting location. A tape measure may be
used to approximately place each Support and Ballast Tray assembly without modules. If
Supports and Ballast Trays are pre-assembled ensure that the spacing is correct using either the
L or Q dimension as appropriate. Also ensure that all Ballast Tray to Support connections are
torqued to 8-10 ft-lb (96-120 in-lb).
4.2.
Install modules with Claws by aligning the Claws to the correct hole on the upper mounting
holes of the Supports in the previous row. Reference the Racking Construction Set to determine
which of the upper mounting holes is used based on the location of the module within the
array. Finger-tighten nuts and bolts.
4.3.
Adjust the placement of the next row of Supports as needed to connect module Claws to the
low side of the Supports. Finger-tighten nuts and bolts. Be sure to align the Support pads with
the north-south snap line on the end of array modules.
4.4.
Tighten all Claw to Support mounting hardware to 8-10 ft-lb (96-120 in-lb) of torque.
4.5.
Repeat Steps 4.1 through 4.4 for remainder of the row.
4.6.
Install the appropriate length Ballast Tray and ballast blocks as done in the previous row. See
Step 3.17(Build Northern Row of Modules)
NOTE:
End of row Ballast Trays must be bolted to both the first and second support in from the
array edge. End trays do not need to be flush with the edge of the module for all none north array
edges. Where a long Ballast Tray is specified at the end of the row it should appear flush with the
module. When a short Ballast Tray is specified at the end of the row it should appear centered on
the module.
