LG MULTI V Installation Manual page 65

n 2 Outdoor Units - 3Ø, 460V
■ When the power source is connected in series between the units.
Power Supply
3phase 3wires
60Hz 460V
(Main Switch)
Power Supply
1phase 60Hz
220~240V
N
L
ELCB
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
■ Be sure that the power source is supplied to Each outdoor unit individually.
Power Supply
3phase 3wires
60Hz 460V
(Main Switch)
Power Supply
1phase 60Hz
220~240V
N
L
ELCB
Note
1) Field Wiring diagram is to be used as a guideline only. Wiring should comply with applicable local and national codes
2) ELCB must have function to prevent electrical short and over current at the same time .
3) Use copper wires only.
4) Unit must be grounded in compliance with the applicable local and national codes.
5) ELCB and fuse/breaker must install to the power line
R S T
Switch
ELCB
Power Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
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
ELCB ELCB
Power Line
Power Line
(3 Wires Cable)
(2 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power Line
(2 Wires Cable)
[Master] [Slave]
Communication Line
(2 Wires Cable)
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
[Master] [Slave]
Pull Box
(Installer option)
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
Electrical Wiring
Communication Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Installation Manual 65