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(4) Put the control box cover, and wrap the wire sealing mate-
rial (Small) (10) around the conduit so as to block the wire
through holes.
CAUTION
• After all the wiring connections are done, fill in any gaps in the
through holes with putty or insulation (procured locally) to pre-
vent small animals and insects from entering the unit from
outside. (If any do get in, they could cause short circuits in the
control box.)
[Precautions for Power Supply Wiring]
• Connect round crimp-style terminals provided with insulation
sleeves to the terminal block for power supply.
Attach insulation sleeve
Round crimp-style terminal
Be sure to follow the instructions provided below if the spec-
ified terminals cannot be used.
Otherwise, abnormal heat may be generated as a result
of the loosening of the wires.
Connect the wires
Do not connect a
evenly.
wire to the single
side only.
• If stranded wires are used, do not solder the front end of the
wires.
• Connect proper wires securely and fix the wires so that exter-
nal force will not be imposed on the terminals.
• Use an appropriate screwdriver to tighten the terminal
screws. The screw heads may be damaged if the screwdriver
is too small and the terminal screws will not be tightened
properly.
• Do not tighten the terminal screws excessively, or otherwise
the screw heads may be damaged.
• Refer to the table below for the required tightening torque val-
ues of the terminal screws.
Terminal block for remote controller
and transmission wires
Terminal block for power supply
Ground wiring
English
Wire through holes
Electric wire
Do not connect
wires different
from each other in
diameter.
Tightening torque [lbf·ft. (N·m)]
0.58 - 0.72
(0.80 - 0.96)
0.87 - 1.06
(1.18 - 1.44)
10-2 WIRING EXAMPLE
No. 1 system: When using 1 remote controller for 1 indoor
unit
Power supply
Power supply
single phase
single phase
60Hz 208/230V
Outdoor unit
60Hz 208/230V
L
L
1
2
IN/D
OUT/D
F
F
F
F
1
2
1
2
L
L
P
P
F
F
T
T
1
2
1
2
1
2
1
2
Indoor unit A
Indoor unit B
P
P
1
2
Remote controller
(option)
No. 2 system: For group control or use with 2 remote con-
trollers
Power supply
Power supply
single phase
single phase
60Hz 208/230V
60Hz 208/230V
Outdoor unit
L
L
L
L
1
2
1
2
IN/D OUT/D
F
F
F
F
1
2
1
2
L
L
P
P
F
F
T T
L
L
P
1
2
1
2
1
2
1
2
1
2
Indoor
unit A
P
P
1
2
Case of group control
Remote controller
(option)
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.)
Power supply
single phase
60Hz 208/230V
L
L
L
L
1
2
1
2
L
L
P
P
F
F
T T
L
L
P
P
F
F
T
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
Most
downstream
Indoor unit
P
P
P
P
1
2
1
2
Remote controller
Remote controller
(option)
(option)
Power supply
single phase
60Hz 208/230V
L
L
1
2
Most down-
P
F
F
T T
L
L
P
P
F
F
T T
stream
1
2
1
2
1
2
1
2
1
2
1
2
1
2
indoor unit
Indoor unit B
P
P
P
P
1
2
1
2
Remote controller
Remote controller
(option)
For use with 2
remote controllers
T
2
13
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