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Installation Manual 53
ENGLISH
Electrical Wiring
Power supply switch
(Switch fuse : ELCB)
Power supply switch
(Switch fuse)
Power supply switch
(Switch fuse)
3 Phase 3 Wires Power line(R, S, T)
Communication line (3 line): Wired remote control
Single Phase of power supply line(L(1),L(2))
Communication line (2 shield line):
Between Outdoor Unit and Outdoor Unit
Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
3 Phase 3 Wires
Power supply
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
The GND terminal is a '–' terminal for the central controller, not Ground Line
Slave
Master
Slave
Outdoor unit
Power supply switch
(Switch fuse : ELCB)
■ When the power source is supplied to
Each outdoor unit individually.
3 Phase 3 Wires
Power supply
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
■ When the power source is connected
In series between the units.
(Main Switch)
(Main Switch)
Between Indoor and
Master
Outdoor unit
IDUSODU DRY1 DRY2 GND 12V
INTERNET
BABA
Master
Outdoor unit
IDUSODU DRY1 DRY2 GND 12V
INTERNET
BABA
Master
Outdoor unit
IDUSODU DRY1 DRY2 GND 12V
INTERNET
BABA
3(A) 4(B) 3(A) 4(B) 3(A) 4(B)
Pull Box(Installer Option)
Pull Box(Installer Option)
n 2 Outdoor Units - 3Ø, 460V
WARNING
• Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage,
Communication disorder by noise effect and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of
the equipment utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the
product is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
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