18 English
2. For group control or use with 2 remote controllers
3. When including BS unit
[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.
8-3 CONTROL BY 2 REMOTE CONTROLLERS (CONTROLLING 1 INDOOR UNIT BY
2 REMOTE CONTROLLERS)
• When using 2 remote controllers, one must be set to “MAIN” and the other to “SUB”.
MAIN/SUB CHANGEOVER
• Refer to the manual attached to the remote controller.
Wiring Method
(1) Remove the control box cover.
IN/D OUT/D
F
1 F2 F1 F2
Control box
LN
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
LN
P
1
P
2
F
1
F
2
T
1
T
2
LN
P
1
P
2
F
1
F
2
T
1
T
2
LN
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
LN
Outdoor unit
No. 2
System
Indoor
unit A
Indoor
unit B
Indoor
unit C
Most downstream
indoor unit
Fig. 24
For use with 2
remote controllers
Power supply
220-240V
50Hz
Note: It is not necessary to designate indoor unit
address when using group control.
The address is automatically set when power is
activated.
Fig. 25
IN/D OUT/D
F
1 F2 F1 F2
IN/DOUT/D
F
1 F2 F1 F2
LN
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
BS unit
No. 3
System
Outdoor unit
Indoor unit A
Most
downstream
indoor unit
Control box
Control box
IN/DOUT/D
F
1 F2 F1 F2
BS unit
Control box
LN
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
LN LN
Power supply
220-240V
50Hz
Power supply
220-240V
50Hz
4PEN494115-1A.book Page 18 Tuesday, October 3, 2017 10:51 AM
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