Toshiba Carrier MMU-AP0074HPUL Manual De Instalación página 18

Wired remote controller wiring
As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit
terminal blocks A and B are reversed.
Wiring diagram
Terminal block for
remote controller
wiring of indoor unit
A
B
Wiring between indoor unit and outdoor units
■
NOTE
• A wiring diagram below is an example for connection to SMMS-u series. For connecting to other outdoor unit
series, refer to the Installation Manual attached to the outdoor unit to be connected.
▼ Wiring example
Outdoor Power supply
Circuit breaker
Outdoor unit
Header outdoor
Earth
terminal
S: The ground of a
shielded wire
Control wiring between outdoor units (Shield wire)
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
Indoor unit Indoor unit
Earth Earth
Indoor power supply
Remote controller
208/230-1-60
Circuit breaker, Pull box Pull box
Power switch
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Terminal block
A
Wired remote
controller unit
B
Wired remote controller wire
(Procured locally)
Outdoor Power supply
Circuit breaker
Outdoor unit
Follower outdoor
Earth
terminal
S: The ground of a shielded wire
Indoor unit Indoor unit
Earth Earth
Remote controller Remote controller
Pull box
Group control
– 17 –
Wiring for flow selector unit (sold separately)
Connect control wiring and power supply following figure when installing a separately sold Super Heat Recovery
Multi System.
Faston connection
R(L), S(N) terminal block
for power supply
Earth screw
Earth screw
Power supply
Wiring on the ceiling panel
According to the Installation Manual of the ceiling panel, connect the connector (20P: White) of the ceiling panel to
the connector (CN510: White) on P.C. board of the electrical control box.
Indoor P.C. board
CN81 (BLK)
Clamp with remote controller lead wires
Attached wire (Control wiring)
Attached wire (Power supply)
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