LG Electronics LA120CPI, LA120HPO, LA090HPO Dimensions, Symbols Used in this Manual, Indoor Unit

Page 9

Dimensions

Dimensions

Symbols Used in this Manual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the air conditioner.

NOTICE This symbol indicates special notes.

Indoor Unit

W

Hanger Hole

D

H

Pipe Hole

Fix Hole

Model

Dimension		INDOOR UNIT
Dimension
W	mm(inch)	600(23.6)
H	mm(inch)	600(23.6)
D	mm(inch)	146(5.7)

Service Manual 9

Image 9

Contents Room Air Conditioner Table of Contents Installation Safety PrecautionsDo not use damaged power cords, plugs, or a loose socket Install the panel and the coverOperation Do not install the product on a defective installation standDo not place a heater or other When flammable gas leaks, turnDo not use the product in a tight Sounds, odors, or smoke comesThat water is drained away prop Keep level even when installingDo not use the product for spe Product when removingCial purposes, such as preserv Ing foods, works of art, etc. It is aDisuse Outlet while the air conditioner isIt is not sanitary and could cause Dimensions Symbols Used in this ManualIndoor Unit 9k, 12k Models Outdoor UnitModels Product SpecificationsInstallation Installation PartsInstallation Tools Installation Map This Product Contains R-410A Refrigerant Confirm The RefrigerantSelect the best Location Rooftop InstallationsIndoor unit Outdoor unitPiping Length and Elevation Oil trap should be installed every 16.4~23feets 5~7 metersOpen panel front Preparing Work for InstallationCover pipe and cover side remove Drain hose junctionPipe and the wire. Refer to installation Fixing Indoor UnitCase of nothing wrong, connect Flaring Work Flaring work and connection of pipingCheck Connecting the PipingIndoor Foamed polyethylene or equivalent is recommendedIndoor unit tubing Flare nut Pipings Wrap the insulation material around the connecting portionBad case For right piping. Follow the instruction below Good caseConnection of Piping -Outdoor Connecting the Cables How to connect wiring to the terminals Connection method of the connecting cableExampleConnecting the cable between indoor unit and outdoor unit Checking the Drainage To check the drainageDrain piping Forming the Piping Air Purging Air purgingAir purging with vacuum pump Soap water method EvacuationFinishing the job Charging Panel Front Assembly Test Running Prepare remote controllerSettlement of outdoor unit Evaluation of the performancePump Down Pump Down ProcedureHow to replace picture & photograph Functions OperationChaos Swing Mode Time delay Safety ControlCooling Operation Mode Function of main controlAuto Operation for Cooling Auto Operation Electronic control modeHealthy Dehumidification Auto Operation for Dehumidificationonly Heating ModelAuto Operation for Heatingonly Heating Model Hot-Start Control Heating Operation Modeonly Heating ModelCooling or Heating Mode with Sleep Mode Auto Control Cooling Mode with the Sleep ModeHeating Mode with the Sleep Modeonly Heating Model Forced Operation Auto restartCooling Heat pump Model Test operationDisplay Function Signal ReceptorSelf-diagnosis Function Operation Indication LampsRemote Control Operations ControlsNd F Button Disassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Evaporator. Remove hole tubing holde Before removing the Turbo FanTo remove the Motor Heat Pump/Cooling Only SeriesIndoor Unit Schematic DiagramHeat Pump Series/ Cooling Only Series Outdoor Unit No A20999A PCB ASSEMBLY, Main Top View Bottom View Indoor Unit P.W.B. AssemblyNo A20901C PCB ASSEMBLY, Main Top View Bottom View Outdoor Unit P.W.B. AssemblyDisplay P.W.B. ASM No A20921A PCB AssemblyWiring Diagram Outdoor UnitCooling Only Models, & Heating Models Refrigeration Cycle Diagram Troubleshooting GuidePiping Length and Elevation Way Valve ProcedurePumping Down Air purging of the charge hoseRe-air purging Gas leakage Balance refrigerant of the 3-way valveAll amount of refrigerant leaked EvacuationAfter Evacuation Gas ChargingConnect the charge hose to the charging cylinder Purge the air from the charge hoseMethod of using equation Method of using graphAccording to Indoor & Outdoor Temperature Additional gas chargingTrouble analysis Cycle PartsProduct does not operate at all Electronic Parts 9k modelProduct is not operate with the remote controller Compressor/Outdoor Fan are unable to drive Nector When indoor Fan does not operateWhen Vertical Louver does not operate When a comunication error occurs Indoor Unit Phenomena in case of connecting errorOutdoor Unit RY-COMP-B Voltage of Connectors according to Indoor Fan SpeedIndoor Unit Exploded ViewOutdoor Unit Parts ListIndoor Replacement Parts ListParts ListOutdoor December No A20926C