10
English
Precautions when laying power supply wiring
•
Wiring of different thicknesses cannot be connected to the
power supply wiring terminal block. (Slack in the power sup-
ply wiring may cause abnormal heat.)
•
Use sleeve-insulated round crimp-style terminals for connec-
tions to the power supply wiring terminal block. When none
are available, connect wires of the same diameter to both
sides, as shown in the figure.
Follow the instructions below if the wiring gets very hot
due to slack in the power supply wiring.
•
For wiring, use the designated power supply wiring and con-
nect firmly, then secure to prevent outside pressure being
exerted on the terminal board.
•
Use the correct screwdriver for tightening the terminal
screws. If the blade of screwdriver is too small, the head of
the screw might be damaged, and the screw will not be prop-
erly tightened.
•
If the terminal screws are tightened too hard, screws might
be damaged.
•
Refer to the table below for the tightening torque of the termi-
nal screws.
[ WIRING EXAMPLE
]
No. 1 system When using 1 remote controller for
1 indoor unit
No. 2 system For group control or use with 2 remote
controllers
No. 3 system When including BS unit
11-2 CONTROL BY 2 REMOTE CONTROLLERS (Con-
trolling 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
(1) Insert a
screwdriver into the recess between the
upper and lower part of remote controller and, working
from the 2 positions, pry off the upper part (2 loca-
tions).
Terminal block
Tightening torque (N·m)
Remote controller / transmission wiring
terminal block (6P)
0.79 – 0.97
Power supply wiring terminal block (3P)
1.18 – 1.44
Insulation sleeve
Round crimp-style terminal
Electric wire
Do not connect
wires of different
gauges.
Do not connect
wires of the same
gauge to one side.
Connect wires of
the same gauge to
both sides.
F
T
1
L
1
1
1
P
P
2
P
N
1
2
P
T
F
2
F
P
F
1
2
2
2
P
1
N
2
P
2
F
IN/D
1
OUT/D
1
P
F
2
F
1
P
L
F
1
2
T
2
T
1
P
P
2
1
F
2
N
F
L
1
2
T T
P
L N
L N
L N
(option)
(option)
(option)
Remote controller
Remote controller
Remote controller
Outdoor unit
Power supply
single phase
50Hz
220-240V or
single phase
60Hz 220V
Power supply
single phase
50Hz
220-240V or
single phase
60Hz 220V
Power supply
single phase
50Hz
220-240V or
single phase
60Hz 220V
Most
downstream
indoor unit
Indoor unit B
Indoor unit A
L N
1
P
2
P
1
P
2
P
1
P
2
P
1
P
P
2
1
F
2
N
F
L
N
L
1
2
F
F
1
2
F
F
1
2
T T
1
P
P
2
1
F
2
F
1
2
T T
N
L
1
P
P
2
1
F
2
F
1
2
T T
IN/D OUT/D
Power supply
single phase
50Hz 220-240V
or single phase
60Hz 220V
(option)
(option)
Remote
Remote controller
Remote
Case of group control
For use with 2
remote controllers
Most
downstream
indoor unit
Indoor unit B
Indoor
unit A
Note) There is not need to set the indoor unit
address when using group control.
(It is automatically set when the power
is turned on.)
Outdoor unit
L
N
F
F
1
2
F
F
1
2
F
F
1
2
F
F
1
2
IN/D
IN/D
OUT/D
OUT/D
1
P
P
2
1
F
2
N
F
L
1
2
T T
1
P
2
P
Power supply
single phase
50Hz 220-240V
or single phase
60Hz 220V
Remote controller
(option)
Indoor unit A
BS unit
Outdoor unit
