Haier AU55NFIAIA Service Manual page 50

Installation of the wired remote controlller
a. Remove upper part of wire
Remove upper part of wire controller
b. Install wire
(1) For exposed installation, use 2 wood screws(accessory).
(2) For recessed installation, use 2 wood screws(accessory).
Note:
Try as far as possible a flat surface for installation. Don't use excessive
c. 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
Hint:
Tread surface of the terminal well so that shielding may not contact other part.
d. Replace the upper part of wire controller
Be careful not to press the wiring.
Hint:
1. Switch box and cord for wiring are not supplied.
2. Don't touch PCB with hand.
Commercial Air Conditioner
Upper part of wire
controller
Lower part of wire
controller
Lower part of
wire controller
Upper part of
wire controller
PCB is mounted on lower part of wire
controller, be careful not to damage
Hint:
When make wiring, please
keepa distance between wires
and power supply cord.
Wire size
Cord kind Shield wire (4 core) (refer to Hint 3,4)
Size
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
- 49 -
Model: AU55NFIAIA
0.33mm
2