JB-1.2 and Instruction Manual

JB-1.2, JB-1.XL Installation Manual
PV Junction Box for Composition/Asphalt Shingle Roofs
Determine location for JB-1 on the roof surface. USE THE LID AS A GUIDE, and place the top of the lid
1-2” from the bottom of the 2nd course of shingles and trace the outline of the lid on the 1st course of
shingles.
Cut the roofing material to the shape of the lid outline, use a roofing bar to loosen shingles and remove
nails that would interfere with the JB-1 flashing.
Slide the JB-1 into place. Using a drill bit, drill through the box & roof simultaneously within the
approved ‘Drill Zone’. Verify, penetration hole is on either side of a rafter but not over or through a
rafter/truss.
Remove the JB-1 and drill appropriately sized holes in the box and decking for required conductor
fittings. Clean off all burs.
Apply roofing sealant to the underside of the flashing following the sealant indentation guide.
Slide the JB-1 into place. Secure the JB-1 to the roof decking using (4) #10 x 1-1/4” Phillips pan head
screws provided, torque to 15-20 lb-in.
Install outdoor-rated, UL 514B, NEMA 3R approved fittings and/or strain reliefs to the EAST, WEST and
SOUTH side walls of JB-1 and complete wiring installation. Up to 1” raintight fittings are all acceptable.
Keep fittings a minimum of ¼” above the flashing. Clean off all burs.
CAUTION: BONDING BETWEEN CONDUIT CONNECTIONS IS NOT AUTOMATIC AND MUST BE
PROVIDED AS PART OF THE INSTALLATION
Populate the JB-1 using the appropriate wire connectors, terminal blocks, or other needed
components that are suitable for the intended purpose.
A. Step-by-Step Instructions
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1 Jan-2021, Rev 1
When connections are complete finish by installing the lid using (5) #8 x 3/4” Phillips pan head screws
provided. Hand tighten until head touches lid top.
9.
STEP 1 STEP 1 STEP 2
STEP 3 STEP 5 STEP 4,6,7,8
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