JOHNSON CONTROLS
63
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
FORM 102.20-N1
ISSUE DATE: 7/06/2016
3
FIELD PENETRATIONS FOR PIPING AND
ELECTRICAL CONNECTIONS
Make sure all penetrations and grom
-
mets are positively sealed on the cabinet
exterior.
For small sizes such as 1/2" iron pipe,
1/2" conduit or 5/8" O.D. copper and
smaller; it is acceptable to use caulk
instead of a grommet.
Electrical conduits must be sealed in-
ternally to prevent airflow and moisture
condensation.
Tools Required
•
Drill motor.
•
Pilot starter bit.
•
Hole saws-approximately 2-1/2", 3-1/4" & 4-1/2"
diameter for holes.
•
Power cords as required.
Material Required
•
Neoprene grommet, 2-1/2", 3-1/4", 4-1/2" or
5-1/2" as required
(see Fig. 5-98).
•
Cold galvanized paint.
•
Paint, touchup spray, champagne, P/N 013-
03322-000 (for outdoor unit exterior only).
•
Caulk, P/N 013-02966-011 gray for indoor units
or 013-03317-040 for outdoor units with cham-
pagne paint.
•
Exacto knife.
•
Clean up supplies.
Procedure
1. Make sure any components; bulkheads or other
obstructions are disconnected from panel inside
and out.
2. Layout location and dimensions of hole opening
to be cut. Do this on both sides of double wall
panels.
3. Carefully cut correct hole size for the application
in panel, insuring cuts on both sides line up and a
smooth clean cut is made.
4. Paint raw edges of sheet metal with cold galva-
nized paint.
5. Select appropriate grommet for new panel hole
and cut out appropriate hole diameter for penetra-
tion with an Exacto knife.
6. After paint dries, Install grommet into panel hole
opening.
7. Apply sealant all around new hole opening behind
lip of grommet, on both sides of panel.
8. Run pipe or conduit through grommet and make
appropriate connections.
9.
All modified panels must provide integrity equal
to original equipment specifications.
10. Reconnect any components, bulkheads or other
fixtures that were disconnected from panel in step
# 1.
11. Thoroughly clean up inside and outside air unit.
