HTW IX21D5 Serie Manuel D'installation page 68

INSTALLATION MANUAL
4. INDOOR UNIT INSTALLATION
NOTE ABOUT WIRING
The wiring connection process may differ slightly between units.
4.7 WRAP PIPING 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.
1. Bundle the drain hose, refrigerant pipes, and signal cable according to Fig. 3.10.
Indoor unit
Drain hose
Signal wire
Fig 3.10
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.
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 in accordance with Fig. 3.10.
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).
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Space
behind unit
Refrigerant
piping
Insulation tape
SPLIT 1X1 IX21D5