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9-2 ELECTRICAL CHARACTERISTICS
Table 4
Units
Power
supply
Fan motor
Model
Hz
Volts
Voltage
range
MCA MOP
HP
FLA
FXMQ15TBVJU
60
208/
230
MAX. 253V
MIN. 187V
1.8
15
0.31
(230) 1.4
FXMQ18TBVJU
1.9
15
0.31
(230) 1.5
FXMQ24TBVJU
1.9
15
0.31
(230) 1.5
FXMQ30TBVJU
3.0
15
0.49
(364) 2.4
FXMQ36TBVJU
3.1
15
0.49
(364) 2.5
FXMQ48TBVJU
3.6
15
0.49
(364) 2.9
FXMQ54TBVJU
3.6
15
0.47
(350) 2.9
MCA: Minimum Circuit Ampacity (A) ;
MOP: Maximum Overcurrent Protective Device (A)
HP: Fan Motor Rated Output (Hp (W)) ; FLA: Full Load Ampere (A)
9-3 SPECIFICATION FOR FIELD SUPPLY FUSES
AND WIRING
Table 5
Model
Power supply wiring
Remote controller wiring
Transmission wiring
MOP
Size
Wiring
Size
FXMQ15TBVJU
15A
Wiring size
and length
must comply
with local
codes.
2-conductor,
stranded
nonshielded
copper cable
PVC/vinyl
jacket
(NOTE 2)
AWG18-16
(0.75-
1.25 mm
2
)
FXMQ18TBVJU
FXMQ24TBVJU
FXMQ30TBVJU
FXMQ36TBVJU
FXMQ48TBVJU
FXMQ54TBVJU
The lengths of remote controller wiring and transmission wir-
ing are as follows:
(1) Remote controller wiring (indoor unit - remote controller)
..............................................................
Max. 1,640 ft. (500 m)
(2)
Transmission wirings ... Total wiring length 6,560 ft. (2,000 m)
•
Outdoor unit - Indoor unit ........
Max. 3,280 ft. (1,000 m)
•
Outdoor unit - Branch Selector unit ...
Max. 3,280 ft. (1,000 m)
•
Branch Selector unit - Indoor unit .....
Max. 3,280 ft. (1,000 m)
•
Indoor unit - Indoor unit ..........
Max. 3,280 ft. (1,000 m)
NOTE
1.
Vinyl cord with sheath or cable (Insulated thickness :
1/16 in. (1 mm) or more)
9-4 WIRING CONNECTION METHOD
CAUTION FOR WIRING
•
For connection to the terminal block, use ring type crimp
style terminals with insulation sleeve or insulate the wirings
properly.
Insulation sleeve
Ring type crimp
style terminals
Wiring
Fig. 21
•
Connect the terminal as shown in Fig. 22.
•
Do not carry out soldering finish when stranded wires are
used. (Otherwise, the loosening of wires may result in
abnormal heat radiation.)
Use wires the same in size
(If the air conditioner is
in simultaneous multi operation)
Fig. 22
(Abnormal heating may occur if the wirings are not tight-
ened securely.)
•
Use the required wirings, connect them securely and fix
these wirings securely so that external force may not apply
to the terminals.
•
Use a proper screw driver for tightening the terminal
screws.
If an improper screw driver is used, it may damage the
screw head and a proper tightening cannot be car ried out.
•
If a terminal is over tightened, it may be damaged.
Refer to the table shown below for tightening torque of
terminals.
Table 6
Tightening torque
[lbf·ft. (N·m)]
Terminal for remote controller and
transmission wirings
0.65 ± 0.07
(0.88 ± 0.08)
Terminal for power supply
1.08 ± 0.10
(1.47 ± 0.14)
Ground terminal
•
Do not carry out soldering finish when stranded wirings
are used.
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