LG PRCKD21E Installation Manual page 39

Rotary/Dip switch setting
- When 3 outdoor units are connected, the example of rotary/Dip switch setting of communica-
tion PCB
Installation summary diagram
RA RA
(AHU)
CONTROL KIT
Communication PCB
#1
#3
EA EA OA OA SA SA
EXPANSION
KIT
Communication line
#2
#4
COMMUNICATION PCB SETTING
Refrigerant pipe
Rotary/Dip switch setting
Outdoor unit Dip switch
#1
#2
#3
#4
Outdoor unit
not accessed
* rotary switch set value is used for outdoor
unit address setting.
39
#1
#2
#3
(Outdoor unit)
Rotary switch
0
1
2
3