LG PRARH1 Installation Manual page 8

Assembly Diagram
n 1 Way CST
Step1. Open front panel.
Step3. Open the cover of PRARH1 and connect wires.
Note: While connecting the PRARH1, attach insulation at the rear of the control box cover
where it receives screws as shown in Fig. A.
Please clean up the remaining wires after installation.
※ Wiring
Auxiliary Heater communication lines
(under AC24V,over AWG24)
These wires should not make
contact with high voltage lines.
To indoor unit PCB
(CN-PTC)
8 Auxiliary Heater Relay Kit
Step2. Assemble PRARH1 with cabinet.
Step4. Assemble control box cover and front panel.
Aux heater
communication
lines
Insulation
Fig. A
screw
Control box cover