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25
8-4 WIRING EXAMPLES
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. 40)
•
Simultaneous operation system:
1 remote controller controls 2 indoor units (2 indoor units operates
equally).
(Refer to Fig. 41)
NOTE
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 con-
nected.
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.
1 2 3
P1 P2
P1 P2
P1 P2
1 2 3
1 2 3
P1 P2
1 2 3
P1 P2
1 2 3
Power supply
220-240V
~
50Hz
Earth leakage
breaker
Outdoor unit
NOTE 1)
Indoor unit
Remote controller
(Optional accessories)
Pair type
Fig. 40
Fig. 41
Power supply
220-240V
~
50Hz
Outdoor unit
Indoor unit (Master)
Indoor unit (Slave)
Remote controller
(Optional accessories)
Simultaneous operation system
Earth leakage
breaker
NOTE 1)
NOTE 2)
4PEN469441-1.book Page 25 Tuesday, March 21, 2017 1:49 PM