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8
English
Ex3. For group control
Prohibited
Indoor unit A
Final indoor unit
Indoor unit B
The wiring between indoor unit and outdoor unit
The wiring between indoor unit and indoor unit
Control box
OUT-OUT
IN-OUT
Outdoor unit
Earth
Earth
Earth
Control panel
Power
supply
Branch switch
Overcurrent
circuit breaker
Never to connect
high-voltage electricity
such as power supply cables.
F1
F2
F1
F2
L2 L3 N
L1
L2 L3 N
L1
L2 L3 N
L1
P1
or
P
P2
or
N
F
1
F
2
T
1
T
2
P1
or
P
P2
or
N
F
1
F
2
T
1
T
2
P1
or
P
P2
or
N
F
1
F
2
T
1
T
2
Note
1. It is not necessary to set the indoor unit address for group
control.
(The setting is made automatically when the power supply
is turned on.)
2. Make sure to disconnect the control panel wiring of the
units over the second one.
3. In this case, all indoor units within the group are controlled
by the control panel for the group control.
Ex4. When including BS unit
Prohibited
Prohibited
The wiring between
outdoor unit and BS unit
The wiring between
indoor unit and BS unit
Earth
Power
supply
Control box
OUT-OUT
IN-OUT
Outdoor unit
F1
F2
F1
F2
Branch switch
Overcurrent
circuit breaker
*Control panel
Indoor unit A
L2 L3 N
L1
P1
or
P
P2
or
N
F
1
F
2
T
1
T
2
Control box
Indoor
Outdoor
BS unit
F1
F2
F1
F2
Never to
connect
high-voltage
electricity
such as power
supply cables.
Never to connect
high-voltage electricity
such as power supply cables.
8-4
PRECAUTIONS WHEN LAYING POWER
WIRING
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 terminal
Wiring
Fig. 1
•
Connect the terminal as shown in Fig. 2.
• Do not carry out soldering finish when stranded wires are
used. (Otherwise, the loosening of wires may result in
abnormal heat radiation.)
Fig. 2
Use wires the same in size
(if the air conditioner is in
simultaneous multi operation)
(Abnormal heating may occur if the wirings are not
tightened 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 carried out.
•
If a terminal is over tightened, it may be damaged.
Refer to the table shown below for tightening torque of
terminals.
Table 1
Tightening torque (N·m)
Terminal block for remote controller
and transmission wirings
0.88 ± 0.08
Terminal for power supply
1.47 ± 0.14
Earth terminal
3.55 ± 0.53
• Do not carry out soldering finish when stranded wirings are
used.
WARNING
•
When wiring, form the wirings orderly so that the control
box lid can be securely fastened. If the control box lid is
not in place, the wirings may come out or be sandwiched
by the box and the lid and cause electric shocks or a fire.
8-5 DETAILS OF STANDARD DEVICES
•
Refer to the installation manual attached to the outdoor
unit for the details of the wire gauge of the power supply
to the outdoor unit, the earth leakage breaker, the circuit
breaker capacity and wiring.
• Use only the wiring devices specified in the following table
for the wiring between indoor unit and outdoor unit.
•
Branch off the exclusive lines for power supply to the
indoor unit according to the following specification.
1. Electrical characteristics
Indoor units
Power supply Fan motor
Model
Hz Volts
Voltage
range
MCA TOCA MFA kW FLA
FXVQ125MY1
50 Hz 380-
415V
Max. 456V
Min. 342V
2.4 2.0
16 0.75 1.9
FXVQ200MY1
4.5 3.6
16
1.5 3.6
FXVQ250MY1
4.5 3.6
16
1.5 3.6
FXVQ400MY1
9.5 8.0
25
3.7 7.6
FXVQ500MY1
9.5 8.0
25
3.7 7.6
FXVQ500MY16
14.5 12.0 40
5.5 11.6
MCA: Min. Circuit Amps (A)
MFA: Max. Fuse Amps (A)
TOCA: Total Over Current Amp (A)
kW: Fan Motor Rated Output (kW) FLA: Full Load Amps (A)
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Summary of Contents for FXVQ125MY1
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