408- 10271
3
of 5
Rev
D
Figure 2
285 mm [11.2 in.]
168 mm
[6.6 in.]
9.6 mm [.38 in.] (4 Places)
Mounting Dimensions
90
_
Vertical
0
_
Horizontal
Mounting Angle
Before system assembly is complete, ensure that:
a. the combiner box assembly and exposed
wiring is located in an area that is NOT readily
accessible, such as a roof top or behind a fence
or barrier, at least 0.914 m [3 ft] above ground
level
b. the location surface ranges from 0
_
horizontal
to 90
_
vertical
c. the combiner box assembly is oriented with
the hinges at the top, right, or left
d. there is enough clearance at the front and
above the hinges of the combiner box assembly
to open the cover and below the connectors for
mating and unmating connectors, and
approximately 25.4 mm [1 in.] on all 4 sides of
the combiner box assembly for ventilation
e. the location does not have continuous water
flow or extreme temperature changes
f. the location ambient temperature is a
maximum of 50
_
C [122
_
F]
g. the combiner box assembly is in the shade
(this is recommended)
After system assembly is complete, ensure that:
the combiner box and exposed wiring for
connection to the combiner box PV input strings
via the SOLARLOK connectors is located in an
area that is NOT readily accessible, such as a
roof top or behind a fence or barrier
3.2. Ground the Equipment (If Required)
Grounding the equipment is the responsibility of the
installer. Ensure that the ground wire is not nicked,
cut, or scraped.
Refer to Figure 3, and proceed as follows:
A size 8 AWG copper wire is installed between
the grounding assembly and the equipment
ground terminal block.
1. Remove the wire binding hex nut from the wire
grounding assembly.
2. Position the ground wire into the wire slot of the
ground bolt.
3. Thread the wire binding hex nut onto the ground
bolt. Finger--tighten the wire binding hex nut until
the wire is compressed.
4. Using a
9
/
16
--in. open end wrench, hold the hex
body of the ground bolt, and using a
5
/
8
--in. socket
wrench, tighten the wire binding hex nut to a torque
of 5.08 N--m [45 in.--lbs.].
For additional information on the wire grounding
assembly, refer to Instruction Sheet 408--10262.
Figure 3
Wire
Wire Slot of
Ground Bolt
Wire Binding
Hex Nut
Hex Body of
Ground Bolt
Optional Grounding
3.3. Connect Wiring and Install Fuses
1. Using a cross--recessed screwdriver, remove
the two cover screws opposite the hinge, then
remove the two remaining cover screws. Pivot the
cover open.
NOTE
i
