Note:
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).
Note:
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 siganal cable with other wires
While bundling these items together, do not intertwine or cross the signal cable with any other wiring.
Indoor Unit
Space behind unit
Refrigerant piping
Drain hose
Signal wire
Insulation tape
Fig. 4.11
4. Indoor Unit Installation
4.6 Wrap piping and cables
4.7 Mount indoor unit
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.
1. Bundle the drain hose, refrigerant pipes, and signal cable according to Fig. 4.11.
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.
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. 4.11.
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