LG UVNH18GJLA2 User Manual

Multi Air Conditioner
SVC MANUAL(General)
MODEL : Multi-Inverter Type(R410A)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
CONFIDENTIAL
Copyright © 2016 - 2020 LG Electronics Inc. All rights reserved. Only training and service purposes.

LG UVNH18GJLA2 Specifications

General

Cooling Capacity	18000 BTU/h
Energy Efficiency Rating	A++
Inverter	Yes
Refrigerant	R32
Power Supply	220-240V, 50Hz
Indoor Unit Noise Level	19 dB (Low)
Warranty	10 years (Compressor)

Summary

Part 1 General Information

Safety Precautions

Essential safety warnings and precautions for servicing and operating the unit.

Part 2 Functions & Controls

List of Functions & Controls

Part 4 Test Run

Pre-Test Run Checks

Essential checks for refrigerant leakage, connections, and insulation resistance.

Test Run Flow Chart

Test Run Procedure

Part 5 Trouble Shooting

Self-diagnosis Function

The unit's ability to diagnose and report errors via LED indicators.

Pump Down Procedure

Procedure to collect refrigerant in the ODU for system maintenance or replacement.

Evacuation Process

Process of removing all refrigerant and air from the system to create a vacuum.

Gas Charging

Instructions for charging the system with the correct amount of refrigerant after evacuation.

Electronic Parts Issues

Troubleshooting Indoor Errors

Detailed steps for diagnosing and fixing common indoor unit error codes.

Troubleshooting Outdoor Errors

Detailed steps for diagnosing and fixing common outdoor unit error codes.