Installation Manual For Wire Controller

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.

Hint

When make wiring, please keep a distance between wires and power supply cord.

wiring from here

A B C D

Lower part of wire controller

Upper part of wire controller

Wire size

Cord kind

Shield wire (4 core) (refer to Hint 3,4)

Size

0.33mm2

 

 

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

Hint

Tread surface of the terminal well so that shielding may not contact other part.

4.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.

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Haier HDU-28CF03, HDU-18HF03, HDU-18CF03 installation manual Indoor unit wiring