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11 English
9. ELECTRIC WIRING WORK
9-1 GENERAL INSTRUCTIONS
• All field supplied parts and materials and electric works must
conform to local codes.
• Use copper wire only.
• For electric wiring work, refer to also “Wiring diagram”
attached to the control box cover.
• For remote controller wiring details, refer to the installation
manual attached to the remote controller.
• All wiring must be performed by an authorized electrician.
• A circuit breaker capable of shutting down power supply to
the entire system must be installed.
• Refer to the installation manual attached to the outdoor unit
for the size of power supply wiring connected to the outdoor
unit, the capacity of circuit breaker and switch, and wiring
instructions.
• Be sure to ground the air conditioner.
• Do not connect the ground wiring to gas and water pipes,
lightning rods, or telephone ground wires.
• Gas pipes: might cause explosions or fire if gas leaks.
• Water pipes: no grounding effect if hard vinyl piping is
used.
• Telephone ground wires or lightning rods : might cause
abnormally high electric potential in the ground during
lightning storm.
9-2 ELECTRICAL CHARACTERISTICS
MCA: Minimum Circuit Ampacity (A)
MOP:Maximum Overcurrent Protective Device (A)
KW: Fan Motor Rated Output (kW)
FLA: Full Load Ampere (A)
9-3 SPECIFICATIONS FOR FIELD SUPPLIED
FUSES AND WIRE
Allowable lengths of transmission wiring and remote controller
wiring are as follows.
(1) Outdoor unit – Indoor unit:
Max. 3280 ft (1,000 m)
(2) Indoor unit – Remote controller:
Max. 1640 ft (500 m)
NOTE
• Vinyl cord with sheath or cable (Insulated thickness : 1/16 in.
(1 mm) or more)
10. WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER
10-1 CONNECTING POWER SUPPLY, GROUND,
REMOTE CONTROLLER, AND TRANSMISSION
WIRING
(Remove the control box cover as shown below and connect
each wire.)
(1) Remove the control box cover.
Model
Power supply Fan motor
Hz Volts
Voltage range
MCA MOP KW FLA
FBQ18PVJU
60
208V
/230V
Max. 253V
Min. 187V
1.6 15
0.350
1.3
FBQ24PVJU
1.8 15
0.350
1.4
FBQ30PVJU
2.3 15
0.350
1.8
FBQ36PVJU
2.9 15
0.350
2.3
FBQ42PVJU
3.4 15
0.350
2.7
FBQ48PVJU
3.4 15
0.350
2.7
Model
Power supply wiring
Remote controller wiring
Transmission wiring
Fuse
Size Wire Size
F
BQ
18PVJU
15A
Wiring size
and length
must
comply
with local
codes.
2-conductor,
stranded
non-shielded
copper cable
PVC/vinyl
jacket
(NOTE)
AWG18-16
(0.75-
1.25 mm
2
)
F
BQ
24PVJU
F
BQ
30PVJU
F
BQ
36PVJU
F
BQ
42PVJU
F
BQ
48PVJU
Screw
(3 portions)
Control box
cover
01_EN_3P530815-1.fm Page 11 Tuesday, July 10, 2018 6:20 PM
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