Table of Contents
Advertisement
18 | Indoor Unit Installation
6. Feed the communication wire through this slot, from the
back of the unit to the front.
7. Facing the front of the unit, match the wire colors with the
labels on the terminal block, connect the u-lug and and firmly
screw each wire to its corresponding terminal.
CAUTION
DO NOT MIX UP LIVE AND NEUTRAL WIRES
This is dangerous, and can cause the air conditioning unit to
malfunction.
8. 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.
9. Replace the wire cover on the front of the unit, and the
plastic panel on the back.
NOTE ABOUT WIRING
THE WIRING CONNECTION PROCESS MAY DIFFER
SLIGHTLY BETWEEN MODELS.
Step 7: Wrap piping and cables
Before passing the piping, drain hose, and the communication
cable through the wall hole, you must bundle them together to
save space, protect them, and insulate them.
1. Bundle the drain hose, refrigerant pipes, and signal cable
according to Fig. 4.10.
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.
6 720 869 159 (2016/12)
Fig. 4.10
DO NOT INTERTWINE COMMUNICATION 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 in accordance with Fig. 4.10.
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).
Step 8: Mount indoor unit
If you installed new connective piping to the outdoor unit,
do the following:
1. If you have already passed the refrigerant piping through the
hole in the wall, proceed to Step 4.
2. Otherwise, double-check that the ends of the refrigerant
pipes are sealed to prevent dirt or foreign materials from
entering the pipes.
3. Slowly pass the wrapped bundle of refrigerant pipes, drain
hose, and signal wire through the hole in the wall.
4. Hook the top of the indoor unit on the upper hook of the
mounting plate.
5. Check that unit is hooked firmly on mounting by applying
slight pressure to the left and right-hand sides of the unit. The
unit should not jiggle or shift.
6. Using even pressure, push down on the bottom half of the
unit. Keep pushing down until the unit snaps onto the hooks
along the bottom of the mounting plate.
7. Again, check that the unit is firmly mounted by applying slight
pressure to the left and the right-hand sides of the unit.
Installation Manual
Hide quick links:
Advertisement
Table of Contents
