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1. When using 1 remote controller for 1 indoor unit. (Normal operation)
Power supply
220-240V
50Hz
or
L N
220V
60Hz
2. For group control or use with 2 remote controllers
Power supply
220-240V
50Hz
or
L N
220V
60Hz
Indoor
unit A
3. When including HR box
NOTE
• It is not necessary to designate indoor unit address when using group control. The address is automatically
set when power is activated.
[ PRECAUTIONS ]
1. A single switch can be used to supply power to units on the same system. However, branch switches and
branch circuit breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or lightning rods, or crossground with telephones.
Improper grounding could result in electric shock.
15
Power supply
Outdoor unit
220-240V
Control box
50Hz
IN/D OUT/D
or
F
F
F
F
1
2
1
2
L N
220V
No. 1
60Hz
System
L N
P
P
F
F
T
T
L N
P
P
1
2
1
2
1
2
1
2
Indoor
Indoor
unit A
unit B
P
P
1
2
Outdoor unit
Control box
IN/D OUT/D
F
1
F
2
F
1
F
2
No. 2
System
Indoor
unit B
L N
P
P
F
F
T
T
L N
P
P
F
F
T
1
2
1
2
1
2
1
2
1
2
P
P
1
2
Power supply
220-240V
L N
50Hz
or
220V
60Hz
Indoor unit A
Power supply
220-240V
50Hz
or
L N
L N
220V
60Hz
F
F
T
T
L N
P
P
F
F
T
T
1
2
1
2
1
2
1
2
1
2
Indoor
unit C
P
P
P
P
1
2
1
2
Indoor
unit C
T
L N
P
P
F
F
T
T
L N
1
2
1
2
1
2
1
2
Outdoor unit
Control box
IN/D OUT/D
F
F
F
F
1
2
1
2
HR box
No. 3
Control box
System
OUT/D
IN/D
F
F
F
F
1
2
1
2
L N
P
P
F
F
T
T
1
2
1
2
1
2
P
P
1
2
Power supply
220-240V
50Hz
or
220V
60Hz
L N
P
P
F
F
T
T
1
2
1
2
1
2
Most
downstream
Indoor unit
P
P
1
2
Most downstream
indoor unit
P
P
F
F
T
T
1
2
1
2
1
2
P
P
P
P
1
2
1
2
For use with 2
remote controllers
English
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