Connect The Cable To The Outdoor Unit - Heat Controller DMH18DB-1 Service Manual

Connecting the Cable between Indoor Unit and Outdoor Unit

Connect the cable to the Outdoor unit.

1. Remove the cover control from the unit by loosening
the screw.
Connect the wires to the terminals on the control
board individually as the following.
2. Secure the cable into the control board with the strain
relief clamp.
3. Refix the cover control to the original position with the
screw.
Outdoor side
A-UNIT
1 2 3
L N 1 2 3
Terminal BLOCK
Indoor A-UNIT Indoor A-UNIT
Power Source
208/230V AC
(High voltage)
NOTICE
:
1. Separately wire the high and low voltage line.
2. Use heat-proof electrical wiring capable of withstanding temperature up to 75°C(167°F).
3. Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and out-
door unit. (For example, Type SJOW)
WARNING:
• Be sure to comply with local codes while running the wire from the indoor unit to the outdoor
unit(size of wire and wiring method, etc).
• Every wire must be connected firmly.
• No wire should be allowed to touch refrigerant tubing, the compressor or any moving parts.
26 Multi type Air Conditioner
B-UNIT
4 1 2 3 4
4 1 2 3 4
Indoor B-UNIT Indoor B-UNIT
Connecting cable(Low voltage)
Outdoor unit
Terminal block
Over 5mm
Holder for
power supply
cord
Cover control
Connecting
cable
Power supply
cable