Wrap Piping And Cables - Carrier 42QHG009D8S Installation Manual

1. Open front panel of the indoor unit.
2. Using a screwdriver, open the wire box
cover on the right side of the unit. This will
reveal the terminal block.
NOTE:
● For the units with conduit tube to connect
the cable, remove the big plastic konck-
out panel tocreate a slot through which the
conduit tube can be installed.
● For the units with five-core cable, remove the
middle small plactic knock-out panel to create
a slot through which the cable can exit.
● Use needle nose pliers if the plastic panel is
tood ifficult to remove by hand.
3. Unscrew the cable clamp below the
terminal block and place it to the side.
4. Facing the back of the unit, remove the
plastic panel on the bottom left-hand side.
5. Feed the signal wire through this slot,
from the back of the unit to the front.
6. Facing the front of the unit, connect the
wire according to the indoor unit's wiring
diagram, connect the u-lug and firmly
screw each wire to its corresponding
terminal.
CAUTION
DO NOT MIX UP LIVE AND NULL WIRES
This is dangerous, and can cause the air
conditioning unit to malfunction.
7. After checking to make sure every
connection is secure, use the cable clamp
to fasten the signal cable to the unit.
Screw the cable clamp down tightly.
8. Replace the wire cover on the front of the
unit, and the plastic panel on the back.
Front view
Terminal block
Wire cover
Screw
Cable clamp
Back view
(For some units only)
Knock-out panel
NOTE ABOUT WIRING
THE WIRING CONNECTION
PROCESS MAY DIFFER SLIGHTLY
BETWEEN UNITS AND REGIONS.
Step 7: Wrappiping and cables
Before passing the piping, drain hose,
and the signal cable through the wall hole,
you must bundle them together to save
space, protect them, and insulate them (Not
applicable in North America).
1. Bundle the drain hose, refrigerant pipes,
and signal cable as shown below:
Indoor Unit
Signal wire Drain hose
DRAIN HOSE MUST BE ON BOTTOM
Make sure that the drain hose is at the
bottom of the bundle. Putting the drain
hose at the top of the bundle can cause the
drain pan to overflow, which can lead to fire
or water damage.
DO NOT INTERTWINE SIGNAL CABLE
WITH OTHER WIRES
While bundling these items together, do not
intertwine or cross the signal cable with any
other wiring.
2. Using adhesive vinyl tape, attach the
drain hose to the underside of the
refrigerant pipes.
3. Using insulation tape, wrap the signal
wire, refrigerant pipes, and drain hose
tightly together. Double-check that all
items are bundled.
DO NOT WRAP ENDS OF PIPING
When wrapping the bundle, keep the ends of
the piping unwrapped. You need to access
them to test for leaks at the end of the
installation process (refer to Electrical Checks
and Leak Checks section of this manual).
Space behind unit
Refrigerant piping
Insulation tape
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