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LG Electronics LS120HP(AS-H121E1H0) Display Function, Self-diagnosis Function, Heating Model

Models: LS120CP(AS-C121E1H0) LS120HP(AS-H121E1H0) LS180CP(AS-C183DM0) LS240HP(AS-H2435DM0) LS090CP(AS-C0914DH0) LS090HP(AS-H091E1H0) LS240CP(AS-C2435DM0) LS180HP(AS-H1835DM0)

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Operation

Display Function

1. Heating Model

2. Cooling Model

Operation Indicator

Operation Indicator

• Cooling, Soft Dry, Fan, Heating

• Cooling, Soft Dry, Fan

Deicer Indicator

Compressor on Indicator

• Hot-start, Deice

Self-diagnosis Function

Error

Error Display LED

Error contents

SVC check point

Code

(Indoor body operation LED)

• Indoor room temperature

• Indoor Thermistor

1

(once)

thermistor open/short

assembly check

• Indoor pipe temperature

3sec

3sec

3sec

thermistor open/short.

Copyright ©2007 LG Electronics. Inc. All right reserved.	- 39 -
Only for training and service purposes	LGE Internal Use Only
Only for training and service purposes

Image 39

LG Electronics LS120HP(AS-H121E1H0) manual Display Function, Self-diagnosis Function, Heating Model, Thermistor open/short

Contents

SVC MANUALExploded View Table of Contents Be sure not to do Be sure to follow the instruction Safety PrecautionsInstallation Do not modify or extend the power cord Operation There is risk of explosion or fire Oxygen deficiency could occur Low refrigerant levels may cause product failure Keep level even when installing the product On the product. outdoor unit OccupantsSalt spray directly Solvents, etc Disuse Do not drink the water drained from the unitReplace all the batteries in the remote Model Btu Series DimensionsSymbols Used in this Manual Indoor Unit Model Btu Series Dimension Mminch 109042.9 30011.8 1787.0 9k, 12k Outdoor Unit 18k, 24k Introduction Features Read carefully, and then follow step by step InstallationInstallation Parts Installation Tools Installation Map Operation Indication LampsAdditional drain pipe This Product Contains R-410A Refrigerant Confirm The Refrigerant Outdoor unit Rooftop InstallationsSelect The Best Location Indoor unit Evap Moz/ft Piping Length And Elevation Drill a Hole In The Wall How To Mount Installation Plate Putting nut on Flaring WorkCut the pipes and the cable Burrs removal Connecting The Piping Indoor unit installationIndoor Tighten the flare nut with a wrench Wrap the insulation material around the connecting portion Insert the connecting cable into the indoor unit Indoor unit installationConnecting cable Connection Indoor Incorrect case Correct case Connection Of Piping -Outdoor Connection Of The Drain Hose Capacity Connection Of The Cable Installation Avoid these situations Checking The DrainageDrain piping Drain hose should point downward for easy drain flow Forming The Piping Preparation Dry nitrogen gas cylinder to this service portAir Purging Air purging With Vacuum Pump Finishing the job Evacuation Btu/h Charging Evaluation of the performance Prepare remote controlTest Running Settlement of outdoor unit Function of Controls Cooling Mode OperationHealthy Dehumidification Mode Operation Defrost Control Heating Mode Operation Jet Cool Mode Operation H/P Model Sleep Timer OperationChaos Natural Wind Mode Jet Cool Mode Operation C/O Model Protection of the evaporator pipe from frosting Forced operationTest operation Auto restart Thermistor open/short Display FunctionSelf-diagnosis Function Heating Model Remote Control Operations To remove the Grille from the Chassis Disassembly To remove the Evaporator When repair, do not damage the Caution label To remove the Motor Cover Cooling & Heating Models Troubleshooting GuideRefrigeration Cycle Diagram Cooling Only Models Way Valve Liquid Side Way, 3-way Valve Pumping Down Procedure Balance Refrigerant of the 3-way Valve Vacuum pump After Evacuation Gas Charging Additional gas charging Method of using graphMethod of using equation According to Indoor & Outdoor Temperature Trouble analysis Cycle Parts Product does not operate at all Electronic Parts 9k model Electronic Parts 18k model Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive.9k Model Compressor/Outdoor Fan are unable to drive.18k Model Nector When indoor Fan does not operate When Vertical Louver does not operate When a comunication error occurs Indoor Unit Phenomena in case of connecting error Outdoor Unit Electric Control Device Schematic Diagram Outdoor 9k, 12k Outdoor 18k, 24k Models 9k, 12k, 18k, 24k Wiring Diagram Models 9kC/O Models 12kH/P, 12kC/O, H/P Models 18kC/O Models 18kH/P, 24kC/O, H/P Components Location Main P.W.B Assembly TOP View Bottom View TOP View Bottom View Outdoor9k, 12k Outdoor18k, 24k 6871A20680 6871A20681 Cooling Only Product Specifications LS090HP LS120HP LS180HP LS240HP Cooling & Heating Exploded View Outdoor Unit 9k, 12k C/O Seriess Outdoor Unit 9k, 12k H/P Seriess Outdoor Unit 18kC/O Seriess W0CZZB Outdoor Unit 24kC/O Seriess Outdoor Unit 18k, 24k H/P Seriess No MFL32351801 December