LG MULTI V IV PRO ARUV100LLS4 Installation Manual page 57

Series outdoor units
When the power source is connected In series between the units.
Outdoor
Power supply
(3Ø 4-wire)
(Main Switch)
R S T N
Switch
Fuse
Indoor
Power supply
(1Ø 2-wire)
L N
Power cable
(4-Wires Cable)
Power cable
(2-Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power cable Power cable
(2-Wires Cable) (2-Wires Cable)
Communication cable
(3-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. (Heat Pump : 68 Hp)
When the power source is supplied to each outdoor unit individually.
Outdoor
Power supply
(3Ø 4-wire)
(Main Switch)
R S T N
Switch
Fuse
Indoor
Power supply
(1Ø 2-wire)
N
L
Power cable
(2-Wires Cable)
Voltage range(V)
Frequency
Outdoor Indoor
60 Hz 380 V 220 V
50 Hz 380-415 V 220-240 V
[Master]
Pull Box
(Installer option)
Power cable
(2-Wires Cable)
[Indoor Units]
R S T N R S T N
Switch Switch Switch
Fuse Fuse Fuse
Power cable
(4-Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power cable
(2-Wires Cable) (2-Wires Cable)
[Outdoor Units]
[Slave1] [Slave2]
Pull Box
(Installer option)
Power cable
(2-Wires Cable)
[Master]
R S T N
Pull Box
(Installer option)
Power cable Power cable
(2-Wires Cable)
Communication cable
(3-Wires Cable)
[Indoor Units]
ELECTRICAL WIRING
[Slave3]
Communication cable
(2-Wires Cable)
Voltage range(V)
Frequency
Outdoor
60 Hz 380 V
50 Hz 380-415 V 220-240 V
[Outdoor Units]
[Slave1] [Slave2] [Slave3]
Communication cable
(2-Wires Cable)
Pull Box
(Installer option)
Power cable
(2-Wires Cable)
57
Indoor
220 V