Group Number Setting For Indoor Units - LG Multi V CRUN Series Service Manual

Installation

3.3 Group number setting for indoor units

3.3.1 Process fot Group Number Setting
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
DC power line(12V) and ground line should be connected to terminal block of adjacent indoor unit
Set group number with increasing the rotary switch From 00 to 7F in orderly manner (if it is desired to control
several indoor units as a group, each group control is possible by group ID rotary switch setting from 0 to 7)
The whole system power turn on.
• Group number of each indoor unit is set with rotary switch of control PCB in each indoor unit
• Before power is supplied the rotary switch for simple central controller on the indoor unit PCB should be set
• ID Mapping of Rotary Switch is following table
Each rotary switch setting in Indoor
SW01M(GROUP)
0
1
2
3
4
5
6
7
204 Outdoor Unit
Terminal block of outdoor unit
Central controller
Indoor unit
A B 12V GND
GND
12V
Simple central Controller
SW02M(UNIT)
0~F
0~F
0~F
0~F
0~F
0~F
0~F
0~F
C, D D)
C D
D
C
Simple central controller recognition
1 Group, 0~F Unit
st
2 Group, 0~F Unit
nd
3 Group, 0~F Unit
rd
4 Group, 0~F Unit
th
5 Group, 0~F Unit
th
6 Group, 0~F Unit
th
7 Group, 0~F Unit
th
8 Group, 0~F Unit
th