English
13
(4) Put the control box lid, and wrap the wire sealing material
(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.
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.
• 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.
10-2 WIRING EXAMPLE
WARNING
Install a ground fault circuit interrupter.
The installation of a ground fault circuit interrupter is imperative
for the prevention of electric shocks and fire accidents.
No. 1 system: When using 1 remote controller for 1 indoor
unit
No. 2 system: For group control or use with 2 remote con-
trollers
Tightening torque (lbf·ft)
Terminal block for remote controller
and transmission wires
0.58 - 0.72
Terminal block for power supply
Ground wiring
0.87 - 1.06
Wire through holes
Electric wire
Round crimp-style terminal
Attach insulation sleeve
Connect the wires
evenly.
Do not connect a
wire to the single
side only.
Do not connect
wires different
from each other in
diameter.
Indoor unit A
Indoor unit B
Most
downstream
Indoor unit
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Outdoor unit
F
T
1
L
1
1
1
1
P
P
2
P
L
2
1
2
P
T
F
2
F
P
F
1
2
2
2
P
1
L
2
2
P
2
F
IN/D
1
OUT/D
1
P
F
2
F
1
P
L
1
F
1
2
T
2
T
1
P
P
2
1
F
2
L
2
F
L
1
1
2
T T
P
Remote controller
Remote controller
Remote controller
L
1
L
2
(option)
(option)
(option)
L
1
L
2
L
1
L
2
Outdoor unit
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.)
Indoor
unit A
Indoor unit B
Most down-
stream
indoor unit
For use with 2
remote controllers
Case of group control
L
1
L
2
L
1
L
2
L
1
L
2
Remote controller
Remote controller
(option)
Remote controller
1
P
2
P
1
P
2
P
1
P
2
P
1
P
P
2
1
F
2
L
2
F
L
1
L
2
L
1
1
2
F
F
1
2
F
F
1
2
T T
1
P
P
2
1
F
2
F
1
2
T T
L
2
L
1
1
P
P
2
1
F
2
F
1
2
T T
IN/D OUT/D
(option)
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
