For group control or use with 2 remote controllers2.
L1 L2L1 L2 L1 L2
IN/D OUT/D
F
1 F2 F1 F2
Control box
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
Outdoor unit
No. 2
System
Indoor
unit A
Indoor
unit B
Indoor
unit C
Most downstream
indoor unit
Fig. 26
For use with 2
remote controllers
Note: It is not necessary to designate indoor unit
address when using group control.
The address is automatically set when power is
activated.
L
1
L
2
L
1
L
2
L
1
L
2
L
1
L
2
Power supply
208/230V
60Hz
L1 L2
1
When including BS unit3.
IN/D OUT/D
F
1 F2 F1 F2
IN/DOUT/D
F
1 F2 F1 F2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
BRANCHSELECTORS
No. 3
System
Outdoor unit
Indoor
unit A
Fig. 27
Control box
Control box
IN/DOUT/D
F
1 F2 F1 F
unit
Control box
Power supply
208/230V
60Hz
L
1
L
2
L1 L2
1
NOTE
A single switch can be used to supply power to units on the same system. However, branch switches 1.
and branch circuit breakers must be selected carefully.
Do not ground the equipment on gas pipes, water pipes or lightning rods, or crossground with tele-2.
phones. Improper grounding could result in electric shock.
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