LG multi V ARUB160BT3 Instruction Manual page 64

Electrical Wiring
n 3 Outdoor Units-3Ø, 208/230V
■ When the power source is connected
In series between the units.
Power supply
3 Phase 3 Wires
60Hz 208/230V
(Main Switch)
Switch
Power supply
1 Phase 60Hz
208/230V
L(L1) N(L2)
ELCB
Power Power Line
(2 Wires Cable) (2 Wires
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
■ When the power source is supplied to
Each outdoor unit individually.
Power supply
3 Phase 3 Wires
60Hz 208/230V
(Main Switch)
Switch
Power supply
1 Phase 60Hz
208/230V
L(L1) N(L2)
ELCB
Power Line
(2 Wires Cable)
64 Outdoor Unit
[Master] [Master]
R(L1) S(L2) T(L3)
ELCB
Power Line
(3 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power Line Po
(2 Wire (2 Wires Cable) (2 Wires Cable)
R(L1) S(L2) T(L3) R(L1) S(L2) T(L3)
Switch
ELCB ELCB
Power Line
(3 Wires Cable)
Pull box Pull box
(Installer option) (Installer option)
HR unit
Power Line
(2 Wires Cable)
[Slave1] [Slav
Pull Box
) (Installer option)
Power Line Power Line Power Line ne
(2 Wires Cable) 2 Wires Ca Wires Cable)
Communica Communication Line
(3 Wires Cable) (3 W
[Indoor Units] [
[Master]
R(L1) S(L2) T(L3)
Switch
ELCB
Pull box
(Installer option)
Power Line
Power Line
(2 Wires Cable)
(2 Wires Cable)
[Indoor Units]
[Slave2]
Communication Line
(2 Wires Cable)
[Slave1]
Power Line
(2 Wires Cable)
Communication Line
(3 Wires Cable)
[Slave2]
Communication Line
(2 Wires Cable)