LG ARUN096BT2 Installation Manual - Page 54

Outdoor Unit, Electrical Wiring

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Electrical Wiring s 3 Outdoor Units - 3Ø, 460V s When the power source is connected In series between the units. 3 Phase 3 Wires Power supply 60Hz 460V Power supply switch (Switch fuse : ELCB) (Main Switch) Power supply 1 Phase 60Hz 208/230V Power supply switch (Switch) Master Slave1 Slave2 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 Pull Box(Installer Option) s When the power source is supplied to Each outdoor unit individually. 3 Phage 3 Wires Power supply 60Hz 460V (Main Switch) Power supply 1 Phase 60Hz 208/230V Power supply switch (Switch fuse : ELCB) Power supply switch (Switch) Pull Box(Installer Option) 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. Between Indoor and Master Outdoor unit SODU IDU INTERNET DRY1 DRY2 GND 12V BA BA Master Outdoor unit SODU IDU INTERNET DRY1 DRY2 GND 12V Master BA BA Outdoor unit SODU IDU INTERNET DRY1 DRY2 GND 12V Slave1 BA BA Outdoor unit The GND terminal is a '-' terminal for the central controller, not Ground Line SODU IDU INTERNET DRY1 DRY2 GND 12V Slave2 BA BA Outdoor unit 54 Outdoor Unit

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54
Outdoor Unit
Electrical Wiring
Power supply switch
(Switch fuse : ELCB)
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
Power supply switch
(Switch)
Master
Slave1
Slave2
Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
■
When the power source is connected
In series between the units.
(Main Switch)
The GND terminal is a '–' terminal for the
central controller, not Ground
Line
Between Indoor and Master Outdoor unit
Slave1
Outdoor unit
Master
Outdoor unit
Slave2
Outdoor unit
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
A
12V
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
A
12V
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
A
12V
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
B
B
B
B
A
A
A
A
A
12V
Master
Outdoor unit
3 Phase 3 Wires
Power supply
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
Power supply switch
(Switch)
Power supply switch
(Switch fuse : ELCB)
3 Phage 3 Wires
Power supply
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
■
When the power source is supplied to
Each outdoor unit individually.
(Main Switch)
Pull Box(Installer Option)
Pull Box(Installer Option)
■
3 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.