Panel Front Assembly | LG Electronics LA120CPO, LA120HPO, LA090HPO

Air purgingd

PanelFrontAssembly

1. First, Check the side cover assembly exactly, and fix the power cord in the bottom groove of cover side left.

2.Assemble connecting lead wire with controller, fix the upper part of panel front, and match the lower part of panel front.

3.Screw up panel front, and suspend the hook of panel front in the groove.

Panel Front

Connector

32Room Air Conditioner

Image 32

LG Electronics LA120CPO, LA120HPO, LA090HPO, LA120HPI, LA120CPI service manual Panel Front Assembly

Contents

Room Air Conditioner Table of Contents Safety Precautions InstallationDo not use damaged power cords, plugs, or a loose socket Install the panel and the cover Do not install the product on a defective installation stand Operation When flammable gas leaks, turn Do not place a heater or otherDo not use the product in a tight Sounds, odors, or smoke comes Keep level even when installing That water is drained away prop Product when removing Do not use the product for speCial purposes, such as preserv Ing foods, works of art, etc. It is a It is not sanitary and could cause DisuseOutlet while the air conditioner is Indoor Unit DimensionsSymbols Used in this Manual Outdoor Unit 9k, 12k Models Product Specifications Models Installation Tools InstallationInstallation Parts Installation Map Confirm The Refrigerant This Product Contains R-410A Refrigerant Rooftop Installations Select the best LocationIndoor unit Outdoor unit Oil trap should be installed every 16.4~23feets 5~7 meters Piping Length and Elevation Preparing Work for Installation Open panel frontCover pipe and cover side remove Drain hose junction Case of nothing wrong, connect Pipe and the wire. Refer to installationFixing Indoor Unit Flaring work and connection of piping Flaring Work Connecting the Piping CheckIndoor Foamed polyethylene or equivalent is recommended Wrap the insulation material around the connecting portion Indoor unit tubing Flare nut Pipings For right piping. Follow the instruction below Good case Bad case Connection of Piping -Outdoor Connecting the Cables Connection method of the connecting cableExample How to connect wiring to the terminals Connecting the cable between indoor unit and outdoor unit Drain piping Checking the DrainageTo check the drainage Forming the Piping Air purging with vacuum pump Air PurgingAir purging Finishing the job Soap water methodEvacuation Charging Panel Front Assembly Prepare remote controller Test RunningSettlement of outdoor unit Evaluation of the performance Pump Down Procedure Pump Down How to replace picture & photograph Operation Functions Time delay Safety Control Chaos Swing ModeCooling Operation Mode Function of main control Auto Operation Electronic control mode Auto Operation for Cooling Auto Operation for Heatingonly Heating Model Healthy DehumidificationAuto Operation for Dehumidificationonly Heating Model Heating Operation Modeonly Heating Model Hot-Start Control Heating Mode with the Sleep Modeonly Heating Model Cooling or Heating Mode with Sleep Mode Auto ControlCooling Mode with the Sleep Mode Auto restart Forced OperationCooling Heat pump Model Test operation Signal Receptor Display FunctionSelf-diagnosis Function Operation Indication Lamps Nd F Button Remote Control OperationsControls To remove the Control Box DisassemblyTo remove the Grille from the Chassis To remove the Motor To remove the Evaporator. Remove hole tubing holdeBefore removing the Turbo Fan Schematic Diagram Heat Pump/Cooling Only SeriesIndoor Unit Heat Pump Series/ Cooling Only Series Outdoor Unit Indoor Unit P.W.B. Assembly No A20999A PCB ASSEMBLY, Main Top View Bottom View Outdoor Unit P.W.B. Assembly No A20901C PCB ASSEMBLY, Main Top View Bottom View No A20921A PCB Assembly Display P.W.B. ASM Wiring Diagram Outdoor UnitCooling Only Models, & Heating Models Troubleshooting Guide Refrigeration Cycle Diagram Piping Length and Elevation Procedure Way ValvePumping Down Air purging of the charge hose Re-air purging Balance refrigerant of the 3-way valve Gas leakage Evacuation All amount of refrigerant leaked Gas Charging After EvacuationConnect the charge hose to the charging cylinder Purge the air from the charge hose Method of using graph Method of using equationAccording to Indoor & Outdoor Temperature Additional gas charging Cycle Parts Trouble analysis Electronic Parts 9k model Product does not operate at all Product is not operate with the remote controller Compressor/Outdoor Fan are unable to drive When indoor Fan does not operate Nector When Vertical Louver does not operate When a comunication error occurs Phenomena in case of connecting error Indoor Unit Outdoor Unit Voltage of Connectors according to Indoor Fan Speed RY-COMP-B Exploded View Indoor Unit Outdoor Unit Replacement Parts List Parts ListIndoor Parts ListOutdoor December No A20926C