Communication Pcb Setting - LG PRCKD21E Installation Manual

COMMUNICATION PCB SETTING

38
COMMUNICATION PCB SETTING
Rotary/Dip switch setting
Rotary switch#1
Pipe temperature
sensor #1 IN
- According to outdoor unit communication
line connection, adjust Dip switch.
Outdoor unit communi-
cation line connection
A / B
Dip switch No. 1~4 OFF
CAUTION
!
• 2 EXPANSION KITs and outdoor units are connected to 1 communication PCB, and each
shall be classified and connected.
Ex) EXPANSION KIT #1, outdoor unit #1, outdoor unit communication line #1, and pipe tem-
perature sensor IN/OUT #1 shall be all connected the same way(A part).
• The number of rotary switch of A and B part shall be set differently.
• Rotary switch set value is used for outdoor unit address setting.
CONTROL KIT inside
Outdoor unit
communication
line#1
Pipe temperature
sensor #1 OUT
Pipe temperature
Outdoor unit communi-
cation line not connected
A / B
Dip switch No.4 ON
Outdoor unit
communication
Rotary switch#2
line#2
Pipe temperature
sensor #2 OUT
sensor #2 IN
- Adjust rotary switch of the part where out-
door unit communication line is connected.
0
The rotary switch
number of each part
shall be different
7