42 Outdoor Unit - LG Multi V miniARUN Series Installation Manual

Electrical Wiring
Example Connection of Transmission Cable
1. 50Hz
I 1 Outdoor Unit - 1Ø, 220~240V
Single Phase 3 wire
( L, N ,GND)
Power supply
50Hz 220~240V
(Main Switch)
Power supply switch
(Switch fuse)
Power supply
1 Phase 50Hz
220~240V
WARNING
• Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage,
Transmission disorder by noise effect and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the
power supply.
• Install the main switch that can interrupt all the power sources in an integrated manner because this system
consists of the equipment utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off
while the product is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
Between Indoor and Outdoor unit
SODU IDU INTERNET
B A B
The GND terminal is a '–' terminal for the central controller, not Ground Line
42 Outdoor Unit
Power supply switch
(Switch fuse : ELCB)
DRY1 DRY2 GND 12V
A
Single Phase 3 wire(L,N,GND)
Transmission line (3 line): Wired remote control
Single Phase of power supply line(L, N)
Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit
3 4 3
Installer
Selection
Pull Box
4 3 4