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OWNER'S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : Room Air Conditioner
P/NO : 3828A20255J
http://www.lghvac.com
www.lg.com

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Summary of Contents for LG LP073HD3A

  • Page 1 OWNER’S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : Room Air Conditioner http://www.lghvac.com www.lg.com P/NO : 3828A20255J...
  • Page 2: Table Of Contents

    Packaged Terminal Air Conditioner/Heat Pump Owner's Manual TABLE OF CONTENTS FOR YOUR RECORDS Safety Precautions......3 Write the model and serial numbers here: Before Operation......7 Model # Serial # You can find them on a label on the side of each unit. Introduction ........8 Dealer's Name Date Purchased...
  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
  • Page 4 Safety Precautions n Operation Do not place objects on the Use a dedicated circuit for Take the power plug out if power cord. Protect the this appliance. necessary, holding the end cord from being pinched or of the plug and do not touch damaged.
  • Page 5 Safety Precautions Do not operate or stop the Do not damage or use an Do not operate with wet unit by inserting or pulling unspecified power cord. hands or in damp out the power plug. environment. • It will cause electric shock or fire •...
  • Page 6 Safety Precautions n Operation Do not put a pet or house plant Do not block the inlet or outlet of Use a soft cloth to clean. Do not where it will be exposed to direct air flow. use wax, thinner, or a strong air flow.
  • Page 7: Before Operation

    Before Operation Before Operation Preparing for Operation 1. Contact an installation specialist for installation. This is NOT a do-it-yourself project. 2. Plug in the power plug properly. 3. Use a dedicated circuit. 4. Do not use an extension cord. Consult a professional installer or electrician. 5.
  • Page 8: Introduction

    VERTICAL AIR DEFLECTOR SLEEVE ASSEMBLY (Aluminum Rear Grille) (Horizontal Louver) (Including Aluminum Rear Grille) AIR FILTER INLET GRILLE (Air Intake) EXPANDED METAL GRILLE (For Superior Performance) LG PTAC and PTHP test condition is recommended with expanded metal grille 8 Room Air Conditioner...
  • Page 9: Electrical Safety

    Electrical Safety Electrical Safety Electrical Data Power cord may include a current 115V~ 230V~ 265V~ interrupter device. A test and reset button is provided on the plug case. The device should be tested on a periodic basis by first pressing the TEST button and then the RESET button.
  • Page 10 Electrical Safety Electrical Safety IMPORTANT (PLEASE READ CAREFULLY) Attaching the adapter ground terminal to the wall FOR THE USER'S PERSONAL SAFETY, THIS receptacle cover screw does not ground the APPLIANCE MUST BE PROPERLY GROUNDED appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded through the house wiring.
  • Page 11: Installation

    ") fill the gap with putty. To maintain the best performance NOTICE INSULATION SLEEVE WALL of LG PTAC COOLED HEAT 1. An insulation strip must be attached. The RADIATION insulation strip is provided with the box. INTAKE 2. After assembly of sleeve & Front grille, the 1/4"...
  • Page 12 Installation • UNIT INSTALLATION 1. Remove the shipping screw from the ventilation door. 2. Remove the front gille by pulling it out at the bottom to release it, then lift it up along the unit top front. 3. Slide the unit into the wall sleeve and secure with 6 screws through the unit flange holes.
  • Page 13: Control Locations

    Control Locations Control Locations Manual Controls TEMPERATURE CONTROL OPERATION MODE SELECTOR Set the Thermostat control to the desired Turns air conditioner off. temperature mark 5 (the mid-point is a good LOW FAN Low speed fan operation without cooling. starting position). If the room temperature is not HIGH FAN High speed fan operation without cooling.
  • Page 14 Control Locations Electronic Controls The controls will look like one of the following. FAN SPEED • Every time you push this button, it cycles through the settings as follows: {High(F2) ’ Low(F1) ’ High(F2) ’ Low(F1)} E/SAVE HEAT HIGH HIGH POWER COOL COOL...
  • Page 15 Control Locations Self-Diagnosis FUNCTION: If the unit has a malfunction, a green OPERATION LED located on the Display PCB used by the unit to indicate the errors. USE: If the customer has to register a complaint to the service center, he can be very clear about registering the complaint that what is happening &...
  • Page 16 Control Locations Additional Controls • REMOVING THE FRONT GRILLE Additional controls are available after removing the front grille and option cover of control box. To remove the front grille, pull out the bottom of front grille and then lift up. To replace the front grille, place the tabs over the top of the unit and push the bottom of front grille until the clips snap...
  • Page 17 Control Locations • REMOVING THE FRONT GRILLE Additional controls are available after removing the front grille and option cover of control box. To remove the front grille, pull out the bottom of front grille and then lift up. To replace the front grille, place the tabs over the top of the unit and push the bottom of front grille until the clips snap into place.
  • Page 18 Control Locations • REMOTE/LOCAL CONTROL When remote/local switch #1 is on, it allow the unit to operate by the Remote Wall Thermostat. The unit control by knobs are not available. • ENERGY SAVER The energy saver switch #2 is on. This switch is set at cycle fan to provide continuous fan operation in cool or heat modes.
  • Page 19 Control Locations • REMOTE/LOCAL CONTROL When remote/local switch #1 is on, it allow the unit to operate by the control of Remote Wall Thermostat. The unit control by knobs are not available. • ENERGY SAVER The energy saver switch #2 is on. This switch is set at continuous fan to provide continuous fan operation in cool or heat modes.
  • Page 20 Control Locations Disassembly Instructions - Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. 1. Remove the front grille. 2. To remove the front grille, pull out the bottom of the front grille and then lift up. Re-install the component by referring to the removal procedure.
  • Page 21: Maintenance And Service

    Maintenance and Service Maintenance and Service TURN THE AIR CONDITIONER OFF AND REMOVE THE PLUG FROM THE POWER OUTLET. Air Filter Cleaning The air filter should be checked at least twice a month to see if cleaning is necessary. Trapped particles in the filter will build up and block the airflow. This reduces the cooling capacity and also causes an accumulation of frost on the cooling coils.
  • Page 22 Maintenance and Service Drainage The base pan may overflow due to high humidity. To drain the excess water, remove the drain cap from the back of the unit. Drain Cap Chassis The chassis must be cleaned every four months or more often as the atmospheric conditions require.
  • Page 23 Maintenance and Service Common Problems and Solutions Troubleshooting Tips save time and money! Review the chart below first and you may not need to call for service. Normal Operation • You may hear a pinging noise caused by water being picked up and thrown by the slinger fan against the condenser on rainy days or when the humidity is high.
  • Page 24 Maintenance and Service COMPLAINT CAUSE REMEDY n Grommets • Check grommets; if worn or missing, replace them. n Fan • If cracked, out of balance, or partially missing, replace it. Fan motor noise. n Loose set screw • Tighten it. n Worn bearings •...
  • Page 25 Maintenance and Service COMPLAINT CAUSE REMEDY n Voltage • Check the voltage. See the limits on the preceding page. If not within limits, call an electrician. n Overload • Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.) n Fan motor •...