LG multi V ARUB160BT3 Instruction Manual page 71

n 4 Outdoor Units - 3Ø, 460V
n When the power source is connected In series between the units.
Power supply
3 Phase 3 Wires
60Hz 460V
(Main Switch)
R S T
Switch
Fuse
Power supply
1 Phase 60Hz
220V
L(L1) N(L2)
Power Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
HR unit
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
WARNING
When the total capacity is over than as follow, the power source do not use in series between the units.
The First terminal block could be burnt out.
n When the power source is supplied to Each outdoor unit individually.
Power supply
3 Phase 3 Wires
60Hz 460V
(Main Switch)
R S T
Switch Switch
Fuse
Power supply
1 Phase 60Hz
220V
L(L1) N(L2)
Power Line
(2 Wires Cable)
[Master] [Slave1]
Pull Box Pull Box
(Installer option) (Installer option)
Power Line
(2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
R S T R S T
Switch Switch
Fuse Fuse Fuse
Power Line
(3 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
HR unit
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
[Slave2] [Slave3]
Power Line
(2 Wires Cable)
[Master] [Slave1]
R S T
Pull Box Pull Box
(Installer option) (Installer option)
Power Line
(2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
Electrical Wiring
Communication Line
(2 Wires Cable)
[Slave2] [Slave3]
Communication Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Installation Manual 71