Ultra Rail Installation Manual

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22
Installing and Leveling Rails
INSTALLATION INSTRUCTIONS
1) Set rails into the attachments
by dropping and snapping into
the mounts. Connect multiple
lengths of rail end to end using the
SnapNrack Ultra Rail Splice (see
“Ultra Rail Splice” section).
2) Level the bottom rail of the array
to the roof and tighten attachment
points.
3) Run a string line or spare rail
from the bottom rail to the top rail
and set desired pitch of the array
by adjusting the top rail, add L Foot
Extension if needed.
4) Level the top rail by moving the
string line down the length of the
rail, matching pitch over the entire
length of the array.
5) Level the remaining rails to the
string line by working out from the
middle rail, add L Foot Extensions
or spacers if needed.
6) Tighten all racking hardware.
Set attachments in the middle of
available leveling range to start.
Best Practice:
The minimum stando height between the
modules and roof is as follows:
ò REC Solar, Yingli, and Suniva modules:
4.00”
ò ReneSola modules: 3.93” (100 mm)
ò Trina Solar modules: 4.53” (115 mm)
Note:
See “Leveling Components” section
for installation instruction and
restrictions.
Install Note:
Slightly rocking rail into mounts can
ease installation, leading first with side
of rail furthest from mount.
Install Note: