Communication Pcb Setting - LG PRCKD40E Installation Manual

Communication PCB setting

Communication PCB setting
Rotary/Dip switch setting
Inside CONTROL KIT
Rotary switch #1
Pipe temperature sensor #1 IN
• Adjust Dip switch depending on the
connection of Outdoor unit communication
cable.
Outdoor unit communication
cable connection
ON
OFF 1 2 3 4
Dip switch
- No. 1 ~ No. 4 OFF
CAUTION
I 2 units of EXPANSION KIT and Outdoor units are connected to 1 unit of communication cable, and
each must be classified and connected.
Ex) Connect all of EXPANSION KIT #1, Outdoor unit #1, Outdoor unit communication cable #1 and
pipe temperature sensor IN/OUT #1 to one.
I The number of Rotary switch number of A and B part must be set differently.
I Rotary switch setting value is used as Outdoor unit address setting.
32 AHU CONTROL KIT
Outdoor unit
communication cable #1
Pipe temperature sensor #1 OUT
(Communication PCB)
Outdoor unit communication
cable not connected
ON
OFF 1 2 3 4
Dip switch
- No. 4 ON
Outdoor unit
communication cable #2
Pipe temperature sensor #2 IN
Pipe temperature sensor #2 OUT
• Adjust Rotary switch of the part connected to
Outdoor unit communication cable.
0
Rotary switch #2
Rotary switch change of
each part must be
different.
7