Haier HDU-60CA03T3 Service Manual page 16

5.2 Indoor unit installation
1. Remove upper part of wire controller
Remove upper part of wire controller
PCB is mounted on lower part of wire controller, be careful not to damage it.
Upper part of wire controller
2. Install wire controller
(1) For exposed installation, use 2 wood screws .
(2) For recessed installation, use 2 wood screws .
Note:
Try as far as possible a flat surface for installation. Don't use excessive force when
tightening screws, or lower part might got deformed.
3. Indoor unit wiring
Connect terminals (A,B,C,D) on lower part of wire
controller to terminals (A, B,C,D) on PCB of indoor
unit.
wiring from here
A B C D
Lower part of
wire
Upper part of
wire
Commercial Air Conditioner
Lower part of wire
controller
Hint
When make wiring, please
keep a distance between
wires and power supply cord.
Wire
Cord kind Shield wire (4 core) (refer to Hint
Siz
Use shielede wires for telecommunication between
wire controller and indoor unit; indoor unit and
outdoor unit. Ground the shield on one side.
Otherwise misoperation because of noise may occur.
Signal wire is self-provided.
Shielded wire
ground
16
0.33mm
2