LG 0CVW0-01O Manual page 30

MULTI V Water IV
5. Field Wiring
 Series Outside Unit - 3Ø, 380-415V / 380V
When the power source is connected In series between the units.
Outside
Power supply
(3Ø 4wires)
(Main Switch)
Indoor
Power supply
(1Ø 2wires)
L
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
WARNING
When the total capacity is over than 68Hp, the power source do not use in series between the outside
units. The First terminal block could be burnt out.
When the power source is supplied to Each outside unit individually.
Outside
Power supply
(3Ø 4wires)
(Main Switch)
R S T N
Switch
Fuse
Indoor
Power supply
(1Ø 2wires)
L N
Power Line
(2 Wires Cable)
Voltage range(V)
Frequency
Outside
60Hz 380V
50Hz 380~415V 220~240V
20
Heat Pump
R S T N
Switch
Fuse
N
Power Line
(4 Wires Cable)
Power Line
(2 Wires Cable)
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
R S T N R S T N
Switch Switch
Fuse Fuse
Power Line
(4 Wires Cable)
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
Indoor
220V
[Master] [Slave1] [Slave2]
Pull Box Pull Box
(Installer option) (Installer option)
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
[Master]
R S T N
Switch
Fuse
Pull Box Pull Box
(Installer option) (Installer option)
Power Line Power Line
(2 Wires Cable) (2 Wires Cable)
Communication Line
(3 Wires Cable)
[Indoor Units]
[Slave3]
Communication Line
(2 Wires Cable)
Voltage range(V)
Frequency
Outside
60Hz 380V
50Hz 380~415V 220~240V
[Slave1] [Slave2] [Slave3]
Communication Line
(2 Wires Cable)
Pull Box
(Installer option)
Power Line
(2 Wires Cable)
Outside Units
Indoor
220V