(5) Mount the provided wire fixing bracket(10) with the wire
fixing screw(11).Fix each wire with the provided clamp(?).
Remote controller wiring
Power supply wiring
Earth Wiring
Outdoor to Indoor connection wirin
Clamp (7) (accessory)
Fig.24
I
WIRING EXAMPLE
I
-&
CAUTION-----------
Be sure to install an earth leakage breaker to the outdoor unit.
This is to avoid electric shocks or a fire.
For the wiring of outdoor units, refer to the installation manual
attached to the outdoor units. Confirm the system type.
• Pair type:
1 remote controller controls 1 indoor unit (standard system).
(Refer to Fig. 25)
• Simultaneous operation system:
1 remote controller controls 2 indoor units
(2 indoor units operates equally).
(Refer to Fig. 26)
• Group control:
1 remote controller controls up to 16 indoor units
(All indoor units operate according to the remote
controller).
(Refer to Fig. 27)
• 2 remote controllers control:
2 remote controllers control 1 indoor unit.
(Refer to Fig. 30)
Pair type
Main power supply
Earth leakage
circuit breaker
1-2
3
0V 50Hz
Earth leakage
circuit breaker
1-2
3
0V
50Hz
Indoor unit
Fig.25
Simultaneous operation system
Main power supply
Earth leakage
1-2
3
0V 50Hz
circuit breaker
Earth leakage
circuit breaker
N��� ""
Indoor unit Indoor unit
(slave)
Fig.26
Earth leakage
circuit breaker
13
NOTE
_;Di
1. Terminal numbers of outdoor and indoor units must be
matched.
2-1.
Connect the remote controller only to the master unit.
2-2.
The remote controller needs to be wired only to the master
unit; it does not need to be connected to the slave units
through transition wiring. (Do not connect transition wiring
to the slave units.)
2-3.
The indoor temperature sensor is effective only for indoor
units to which the remote controller is connected.
2-4.
The length of wiring between the indoor unit and the
outdoor unit varies depending on the connected model,
the number of connected units, and the maximum piping
length.
For details, refer to the technical documents.
Group control
Main power
supply
Remote
controller
(Optional
accessory)
Main power
supply
Remote
controller
(Optional
accessory)
t-220·240V ,
t-220-240V,
1-220-240V,
50/60Hz '
50/60Hz '
�-� 50/60Hz '
Main power
supply
l-220-240V50Mrlz
Remote
controller
(Optional
accessory)
Indoor unit
Indoor unit
Indoor unit
Fig.27
NOTE
_;Di
• Terminal numbers of outdoor and indoor units must be
matched.
When implementing group control
• When using as a pair unit or as a master unit for
simultaneous operation system, you may carry out
simultaneous starVstop (group) control up to 16 units with
the remote controller.
(Refer to Fig. 28)
• In this case, all the indoor units in the group will operate in
accordance with the group control remote controller.
• Select a remote controller which matches as many of the
functions (airflow direction, etc.) in the group as possible.
Outdoor
unit 1
Outdoor
unit 2
Group control remote controller
Fig.28
Outdoor
unit 16
1~230V
50Hz
1~230V
50Hz
1~230V
50Hz
1-2
3
0V 50Hz
1-2
3
0V 50Hz
1~230V
50Hz
1~230V
50Hz
1~230V
50Hz
Summary of Contents for FDMA125AV16
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