LG ARNH963K2A2 - Finish Up Procedures; Accessory Installation Procedures; Independent Power Module Installation (K2)

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Installation
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Independent Power Module (K2 Only)
The Independent Power Module is supplied with the Hydro Kit Medium Temperature (K2) unit. The Independent Power Module protects from
a plate heat exchanger burst. If a power outage occurs during normal operation, a plate heat exchanger burst could happen during oil-return
and defrosting cycle in cooling mode.
Wiring Pre-Check
•Verify power wiring and communication cable are all properly terminated.
•Testthelinevoltagewiringinsulation.ConductaMeg-ohmtestreachingavalueof2.0MΩorhigher.Testtheinsulationresistancebetween
the Hydro Kit power wiring terminal block and ground using a DC meg-ohm tester (DC 500V).
1. Open the front panel of the Hydro Kit and the control box
cover.
2. Secure the power module to the wall of the Hydro Kit control
panel (Figure 33).
3. Route the power module wiring harness #2 through an opening
in the bottom of the control panel (Figure 34).
FINISH UP
Accessory Installation
Power Module
Harness #1
Harness #2
EEV
Valve
Power Module
Harness #1
Harness #2
Installation
Figure 33: Securing Power Module to Control Panel
Figure 34: Routing Module Wiring