LG MULTI V WATER II ARWN Series Installation Manual page 60

Electrical Wiring
u Example Connection of Communication Cable
[BUS type]
• Connection of communication cable must be installed like below figure between indoor unit to outside unit.
[STAR type]
• Abnormal operation can be caused by communication defect, when connection of communication cable is installed like
below figure(STAR type).
External wiring
External wires should be connected as follows.
60 Outside Unit
① Main power cable
② Communication cable
③ Solenoid valve control cable (option)
flow switch communication cable (option)