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2. For group control or use with 2 remote controllers
Power supply
220-240V
50Hz
L N
or
220V
60Hz
Indoor
unit A
3. When including BS unit
Power supply
220-240V
50Hz
or
220V
60Hz
Indoor unit A
[ PRECAUTIONS ]
1. All transmission wiring except for the remote controller wires is polarized and must match the terminal
symbol.
2. 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.
3. Do not earth the equipment on gas pipes, water pipes or lightning rods, or cross earth with telephones.
Improper earthing could result in electric shock.
18
Outdoor unit
Note: It is not necessary to designate indoor unit
Control box
IN/D OUT/D
F
F
F
F
1
2
1
2
No. 2
System
Indoor
unit B
L N
P
P
F
F
T
T
L N
P
P
F
F
1
2
1
2
1
2
1
2
1
P
P
1
2
Outdoor unit
Control box
IN/D OUT/D
F
F
F
F
1
2
1
2
L N
No. 3
System
L N
P
P
F
F
T
1
2
1
2
1
P
P
1
2
address when using group control.
The address is automatically set when power is
activated.
Indoor
unit C
T
T
L N
P
P
F
F
T
T
L N
2
1
2
1
2
1
2
1
2
BS unit
Control box
OUT/D
IN/D
F
F
F
F
1
2
1
2
T
L N
P
P
2
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
Fig. 26
BS unit
Control box
OUT/D
IN/D
F
F
F
F
1
2
1
2
Most
F
F
T
T
1
2
1
2
downstream
indoor unit
P
P
1
2
Fig. 27
English
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