LG PRARH1 Installation Manual page 9

n 2 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)
Step2. Assemble PRARH1 with cabinet.
Step4. Assemble control box cover and front panel.
Aux heater
communication
lines
Assembly Diagram
Insulation
Fig. A
screw
Control box cover
Installation Manual 9