LG multi v Installation Manual page 60

ELECTRICAL WIRING
60
2 Outdoor Units-3Ø, 575V
When the power source is connected In series between the units.
Power supply
3 Phase 3 Wires
60Hz 575V
(Main Switch)
Power supply
1 Phase 60Hz
208/230V
L(L1) N(L2)
ELCB
(2 Wires Cable)
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 575V
(Main Switch)
Power supply
1 Phase 60Hz
208/230V
L(L1) N(L2)
ELCB
(2 Wires Cable)
!
NOTE
- Field Wiring diagram is to be used as a guideline only. Wiring should comply with
applicable local and national codes
- ELCB must have function to prevent electrical short and over current at the same time .
- Use copper wires only.
- Unit must be grounded in compliance with the applicable local and national codes.
- ELCB and fuse/breaker must install to the power line
[Master]
R S T
Switch
ELCB
Power Line
(3 Wires Cable)
Power Line
Pull Box Pull Box
(Installer option) (Installer option)
HR unit
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
R S T R S T
Switch Switch
ELCB ELCB
Power Line
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)
[Slave]
Communication Line
(2 Wires Cable)
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
[Master] [Slave]
Pull box
(Installer option)
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
Communication Line
(2 Wires Cable)