LG MULTI V PLUS LRUV Series Installation Manual page 69

Group Number Setting for Indoor Units
Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off.
The transmission lines connected to C, D of simple central controller should be connected to C,D terminal
port for central control of Outdoor Unit with care for their polarity (C ➔ C, D ➔ D)
Both the DC power (Vcc) and the GND connect the simple central controller according to the polarity of Vcc
terminal and GND.
Turn the whole system on.
Set the group and Indoor Unit number with a wired remote control.
To control several sets of Indoor Units into a group, set the group ID from 0 to F for this purpose.
Outdoor Units
Terminal block of outdoor unit
Indoor unit Outdoor unit Central controller
A B E F
Vcc
Simple central Control
Group recognizing the simple central controller
No. 0 group (00~0F)
No. 1 group (10~1F)
No. 2 group (20~2F)
No. 3 group (30~3F)
No. 4 group (40~4F)
No. 5 group (50~5F)
No. 6 group (60~6F)
No. 7 group (70~7F)
No. 8 group (80~8F)
No. 9 group (90~9F)
No. A group (A0~AF)
No. B group (B0~BF)
No. C group (C0~CF)
No. D group (D0~DF)
No. E group (E0~EF)
No. F group (F0~FF)
C D Vcc GND
GND
D
C
Electrical Wiring
Installation Manual 69