LG Multi V Service Manual

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Copyright © 2020 LG Electronics Inc.
All rights reserved. Only training and service purposes.
Function
3.4 Pressure switch
- Main has pressure sensing switch in series between compressor and power relay.
- The state of pressure sensing switch is normally on. It has small electric current from 220 V AC. Never touch the
connecting terminal with hand nor short two wires directly.
3.2 Discharge temperature control
n Outdoor unit control
SC : Sub Cooling, SH : Super Heating
3.3 Inverter protection control
- Cooling mode
Temperature Range Compressor Sub cooling EEV IDU EEV
Tdis >113 ℃ (235.4 ℉) -5 Hz / 10 seconds SC,SH decrease control SH decrease control
Tdis >110 ℃ (230 ℉) -5 Hz / 30 seconds SC,SH decrease control SH decrease control
Tdis≥ 105 ℃ (221 ℉) Frequency holding SC,SH decrease control SH decrease control
Tdis≤ 100 ℃ (212 ℉) +3 Hz or less SC,SH decrease control SH decrease control
Tdis >100 ℃ (212 ℉) Normal control SC,SH decrease control SH decrease control
- Heating mode
Normal Operation Frequency Down System Stop
AC input Current 27 A or less 29 A or more 31 A or more
Compressor Current 34 A or less 35 A or more 46 A or more
Normal Operation Frequency Down System Stop
AC input Current 30 A or less 32 A or more 34 A or more
Compressor Current 34 A or less 35 A or more 46 A or more

LG Multi V Specifications

General

Brand	LG
Model	Multi V
Category	Air Conditioner
Language	English