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Piping diagrams – LG LA125HV User Manual

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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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2. Piping Diagrams

Indoor Unit

Outdoor Unit

Heat
Exchanger
(Evaporator)

Heat
Exchanger
(Condenser)

EEV

Compressor

Accumulator

Gas Side

3-Way Valve

2-Way Valve

Liquid Side

Cooling

Heating

Reversing Valve

Th1

Th2

Th5

Th4

Th3

LOC.

Description

PCB Connector

Th1

Thermistor for indoor air temperature

CN_TH1(INDOOR)

Th2

Thermistor for evaporating temperature

CN_TH2(INDOOR)

Th3

Thermistor for discharge pipe temperature

CN_D_PIPE(OUTDOOR)

Th4

Thermistor for condensing temperature

CN_TH1(OUTDOOR)

Th5

Thermistor for outdoor air temperature

* EEV : Electronic Expansion Valve.