LG PRCKD42E Owner's Manual page 24

OUTDOOR UNIT COMMUNICATION LINE CONNECTION
24
OUTDOOR UNIT COMMUNICATION LINE
CONNECTION
Cautions on connecting the communication module with out-
door unit
- 2 communication PCBs are installed on the Control Kit. Each PCB can be connected to up to 3
outdoor units and Expansion Kits.
Therefore, make sure the communication cables of each outdoor unit and pipe temperature sen-
sor wires of Expansion Kit are not mixed when connecting the outdoor units.
C12A C12B
Outdoor Unit #1 Outdoor Unit #2
(Outdoor Unit #4) (Outdoor Unit #5)
C13A C13B C14A C14B
Outdoor Unit #3
(Outdoor Unit #6)
<Expansion Kit #1(#4)>
<Expansion Kit #2(#5)>
<Expansion Kit #3(#6)>
Pipe Temperature Sensor IN
Pipe Temperature Sensor OUT
Communication Cable
Pipe