LG ARUN038GS2 Installation Manual page 53

Example Connection of Communication Cable
[BUS type]
• Connection of communication cable must be
installed like below figure between indoor unit to out-
door unit.
HR unit
[STAR type]
• Abnormal operation can be caused by communica-
tion defect, when connection of communication cable
is installed like below figure(STAR type).
HR unit HR unit HR unit
Installation Manual 53
Electrical Wiring