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Installation instructions
Wiring Diagram
Make sure that the color of wires of the outdoor unit and the terminal No. are the same as those
of the indoor unit.
7K,9K,12K,18K,22K,24K,30K Model
HEAT PUMP HEAT PUMP
Indoor unit Indoor unit
Terminal
Brown
3L
Blue
2L
Power connecting cord I
1L
Brown
N
Blue
Power connecting cord
Yellow/Green
For above models, the power supply are connected from indoor unit.
For some models, the ground wire may be connected to the electric box directly.
18K,22K,24K Model
For these models, the power supply are connected from outdoor unit, with a circuit breaker.
Indoor unit
Terminal
3L
Power connecting cord I
2L
1L
Power connecting cord
L
N
Outdoor unit Outdoor unit
Terminal
Brown
3L
Blue
2L
Brown
1L
N
Blue
Yellow/Green
HEAT PUMP HEAT PUMP
Outdoor unit
Terminal
3L
2L
1L
L
N
Terminal
L
N
Power supply
COOLING ONLY
Indoor unit Indoor unit
Terminal
Brown
1L
Blue
N
Power connecting cord
Yellow/Green
Electric Box
COOLING ONLY
Indoor unit
Terminal
1L
Brown
L
Power connecting cord
N
23
Outdoor unit Outdoor unit
Terminal
Brown
1L
Blue
N
Yellow/Green
Electric Box
Outdoor unit
Terminal
1L
L
N
Terminal
L
N
Power supply