LG PRCKD40E Installation Manual page 33

RA
Rotary/Dip switch setting example
• Example of Rotary/Dip switch setting of communication cable when connecting 3 Outdoor units
Installation summary diagram
RA
RA
(AHU)
CONTROL KIT
Communication PCB
#1
#3
EA OA
EA OA
EA OA
EXPANSION
KIT
#2
#4
SA
SA
Refrigerant pipe
SA
Communication cable
Rotary/Dip switch setting
Outdoor unit
#1
#2
#3
#4
Outdoor unit not
connected
* Rotary switch setting value is used for setting the address
of Outdoor unit.
Communication PCB setting
#1
#2
(Outdoor unit)
Dip switch Rotary switch
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
Installation Manual 33
#3
0
1
2
3