OWNER’S MANUAL AIR CONDITIONER Read this owner’s manual thoroughly before operating the appliance and keep it handy for reference at all times. TYPE: ROOM AIR CONDITIONER ENGLISH FRANÇAIS ESPAÑOL www.lg.com MFL67646805 Rev.04_111120 http://www.lghvac.com Copyright © 2020 LG Electronics Inc. All Rights Reserved.
TABLE OF CONTENTS TABLE OF CONTENTS 3 SAFETY INSTRUCTIONS 3 IMPORTANT SAFETY INSTRUCTIONS 7 PRODUCT OVERVIEW 9 PREPARING FOR INSTALLATION 9 9 Contents of Installation Kit Tools and Materials Needed 10 INSTALLATION 10 11 12 12 14 15 How to Install the Unit How to connect power supply cord Disassembly Instructions Electrical Data Electrical Safety Subbase (Optional) 17 OPERATION 17 18 19 20 25 Before Operation Manual Controls Control Panel Additional Controls Self-Diagnosis 27 SMART FUN
SAFETY INSTRUCTIONS 3 SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE We have provided many important safety instructions in this manual and on your appliance. Always read and follow all safety instructions. ! This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or injure you and others. All safety instructions will follow the safety alert symbol and either the word WARNING or CAUTION.
SAFETY INSTRUCTIONS • Always plug into a grounded outlet. • Do not under any circumstances, cut or remove the third (ground) prong from the power cord. • When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord. • Plug in the power plug properly. • Do not modify or extend the power cord. • Do not start/stop operation by plugging/unplugging the power cord.
SAFETY INSTRUCTIONS GROUNDING INSTRUCTIONS • The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER PLUG.
SAFETY INSTRUCTIONS 6 ! CAUTION To reduce the risk of minor or moderate injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following: INSTALLATION • Take care when installing the product that exhaust or condensation does not damage nearby property. • Follow installation instructions exactly to avoid excessive vibration or water leakage.
PRODUCT OVERVIEW 7 PRODUCT OVERVIEW WARNING • This air conditioner should be installed in accordance with the National Electric Code. Expanded Metal Grille Should be applied for better performance in PTAC and PTHP Units. For Installation purpose and better appearance Aluminum Rear Grille or Architecture Rear Grille can be applied in PTAC and PTHP Units.
PRODUCT OVERVIEW 6 3 7 8 9 5 10 2 4 11 12 1 16 13 15 14 20 19 18 17 1 Front Grille 6 Fan 11 Control Box 16 Evaporator 2 Air Filter 7 Cover 12 Compressor 17 Vent Door 3 Discharge Grill 8 Brace 13 Base pan 18 Rear,Grille 4 Door 9 Shroud 14 Bracket 19 Condenser 5 Mesh, Metal 10 Fan 15 Pan drain 20 Valve, Drain
PREPARING FOR INSTALLATION 9 PREPARING FOR INSTALLATION Contents of Installation Kit ENGLISH Wire Nuts (7) Screws (6) Insulation Strip Wall thermostat harness Tools and Materials Needed Phillips-head screwdriver Utility Knife Nipper pliers
INSTALLATION The insulation strip is provided with the box. INSTALLATION 5 How to Install the Unit 1 After assembly of sleeve & front grille, the gap should be over 20” from both sleeve & grille. (See the figure 1.) Measure the wall sleeve and air conditioner dimensions. You can install the new air conditioner according to these installation instructions to achieve the best performence.
INSTALLATION How to connect power supply cord 1 4 Replace cover with screws. Tighten securely. 5 Slide the unit into the wall sleeve and secure with 4 screws through the unit flange holes. 6 Reinstall the front grille by hooking the top over the unit top, then pushing it in at the bottom. Remove cover by removing 2 screws from front. 3 Connect accessory power supply cord, and attach power cord to base pan with screws. * You need to attach ground wire to cover with a ground screw.
INSTALLATION Disassembly Instructions Front grille 1 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. • To adjust the air direction, remove the front grille. Remove the 4 screws that fasten the discharge grille to the front grille. Rotate the discharge grille 180°, then assembly the discharge grille to the front grille with 4 screws.
INSTALLATION Use Wall Receptacle Standard 208/230V, 3-wire grounding receptacle rated 20A Standard 208/230V, 3-wire grounding receptacle rated 30A ! Applied Model Use 15 AMP. time delay fuse or 15 AMP. Circuit breaker. LP073IHP.AK3GEUS (Y4NV07ANLK0.AK3GEUS), LP093IHP.AK3GEUS Use 20 AMP. time delay fuse or 20 AMP. (Y4NV09ANLK0.AK3GEUS), Circuit breaker. LP123IHP.AK3GEUS (Y4NV12ANLK0.AK3GEUS), LP153IHP.AK3GEUS (Y4NV15ANLK0.AK3GEUS) Use 30 AMP. time delay fuse or 30 AMP. Circuit breaker.
INSTALLATION Electrical Safety IMPORTANT (PLEASE READ CAREFULLY) FOR THE USER'S PERSONAL SAFETY, THIS APPLIANCE MUST BE PROPERLY GROUNDED The power cord(sold separately) of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded.
INSTALLATION 15 Subbase (Optional) The Subbase kit consists of two leveling legs for sleeve support and an accurate unit for leveling during installation. Also, the subbase is pre-wired and is grounded by means of a grounding screw. Part No.
INSTALLATION Installation Procedure: Inside Wall 1. Disconnect all power to unit. 2. Mark the hole location on sleeve then drill 1/8in holes. See Figure 2 for hole dimensions on sleeve. 3. (Optional) Adjustable side extension panels can be attached to cover open space left between subbase and wall. 1/8” Hole 4. Attach side extension panels to subbase using one black screw on each side so that panel end extends dimensions from the subbase. SIDE VIEW OF WALL SLEEVE 1 3/16 ” 5.
OPERATION OPERATION Before Operation • Contact an installation specialist for installation. This is NOT a do-it-yourself project. • Plug in the power plug properly. • Use a dedicated circuit. • Do not use an extension cord. Consult a professional installer or electrician. • Do not start/stop operation by plugging/unplugging the power cord. • If the cord/plug is damaged, replace it with only an authorized replacement part.
OPERATION 18 Manual Controls Enclosed outdoor area Greenhouse Effect VENTILATION To use ventilation door, remove the screw which fasten the ventilation door.(See Figure 5) The ventilation lever is located to the upper right side of the unit. The ventilation lever must be in the CLOSE position in order to maintain the best cooling & heating conditions. When outdoor air is necessary in the room, set the ventilation lever to the OPEN position.
OPERATION 19 Control Panel 6 ENGLISH 5 4 1 Power Press to turn the air conditioner ON or OFF. 2 Delay ON/OFF Timer Delay ON - When the air conditioner is off, set it to automatically turn on from 1 to 24 hours later, at its previous mode and fan settings. Delay OFF - When the air conditioner is on, set it to automatically turn off from 1 to 24 hours later. NOTE • Each press of the Timer button advances the timer by 1 hour. After the last press the display returns to the temperature setting.
OPERATION Additional Controls Digital Controls Simultaneously press this the letter in the display. , buttons and hold for 3 seconds to enter the setup ready state with The 1st Digit number is changed sequentially from 1 to 6 when the desired setting option. Select the 2nd digit value through the option. button is pressed to select buttons and set the desired setting value for each Automatically save previous setting value when Option is changed by the button.
OPERATION 21 MODE 1: Control Type The unit control by buttons are not available. Press the ∧ pad to select Remote. The default setting for Mode 1 is Local, Wifi and LG Exclusive Wired Remote Controller. Local/Wifi/LG Exclusive Wired Remote Controller Remote MODE 2: Energy Saver Press MODE until a 2 appears in the first digit of the display for Energy Saver mode. Energy Saver mode is set at cycle fan to provide continuous fan operation in cool or heat modes.
OPERATION MODE 4: Temperature Limiting Press MODE until a 4 appears in the first digit of the display for Temperature Limiting mode. Temperature Limiting can save money by limiting the lowest temperature for cooling and the highest temperature for heating. This temperature limiting is not available with the Remote Wall Thermostat. Press the ∨ or ∧ pad to change 2nd Digit number. 2nd Digit 0 1 2 3 4 5 6 7 Cooling 54°F(12.2°C)~86°F(30.0°C) 56°F(13.3°C)~86°F(30.0°C) 58°F(14.4°C)~86°F(30.0°C) 60°F(15.
OPERATION 23 Front desk control Wire # AWG #22 #20 #18 #16 Maximum Length 600 ft (180 m) 900 ft (270 m) 1500 ft (450 m) 2000 ft (610 m) Front Desk Control Front Desk Control FD2 FD1 DR2 DR1 MS2 MS1 (Molex Housing Spec 396-06V) Remote wall thermostat When the wires are connected, the unit will be controlled by a remote wall thermostat. The thermostat connections supply the 24 Volt AC. When you install the digital/electronic thermostat, you must set it to 24 Volt AC.
OPERATION Simple wired remote controller(optional) When the cable is connected, the unit will be controlled by a Simple wired remote controller. You need to purchase additional accessory remote controller to use this unit.
OPERATION 25 Self-Diagnosis FUNCTION 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 & by referring the user's manual the customer can clearly define the problem. So that the engineer should go fully prepared with the prescribed tools to be used regarding that problem. It also keeps the customer aware about the unit. Here are some of the problems defined below for which the LED indicates by flashing.
OPERATION NOTICE Function Description This feature prevents over heating of unit by electrical heater located inside of the unit at the reOver heating Protection mote mode (when the unit is connected with wall thermostat). Freeze Protection Remote Mode This feature prevents freezing of room at low temperature.
SMART FUNCTIONS SMART FUNCTIONS 27 2 Turn off the Mobile data or Cellular Data on your smartphone. 3 Connect your smartphone to the wireless router. LG ThinQ Application ENGLISH *You need to purchase additionnal accessory Wifi module to use this function. This feature is only available on models with the or ThinQ logo. The LG ThinQ application allows you to communicate with the appliance using a smartphone.
SMART FUNCTIONS • Smartphone user interface (UI) may vary depending on the mobile operating system (OS) and the manufacturer. • If the security protocol of the router is set to WEP, you may fail to set up the network. Please change it to other security protocols (WPA2 is recommended) and register the product again. Installing the LG ThinQ Application Search for the LG ThinQ application from the Google Play Store or Apple App Store on a smartphone.
SMART FUNCTIONS Smart Diagnosis This feature is only available on models with the or logo. NOTE • For reasons not attributable to LGE’s negligence, the service may not operate due to external factors such as, but not limited to, Wi-Fi unavailability, WiFi disconnection, local app store policy, or app unavailability. • The feature may be subject to change without prior notice and may have a different form depending on where you are located.
MAINTENANCE 30 MAINTENANCE ! WARNING • Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops. Cleaning the Front Grille and discharge air grille • The Front Grille and discharge air grille can be cleaned with a mild soap or detergent. Under no circumstances should hydrocarbon based cleaners (e.g. acetone, benzene, naphtha, gasoline, etc.) be used to clean the front or air grilles. • Use care when cleaning the control area.
MAINTENANCE Vent Filter 3 Slide the unit out of the wall sleeve far enough so that the vent filter is accessible as shown in Figure A. Remove the shipping screw from the ventilation door. Cleaning the Vent Filter 1 Remove the front grille as described in front grille Removal. Figure A 4 Remove the vent filter by unscrewing the two screws at the top of the filter and gently pulling the filter away from the partition panel. Refer to Figure B.
MAINTENANCE Unit The Unit must be cleaned every four months or more often as the atmospheric conditions require. Use water and detergent to clean the base pan and coils. The use of harsh cleaning materials may cause a deterioration of the coil fins or endplates. Do not use a high pressure cleaner as it could cause severe damage to the PTAC fins and coils. A hose is okay to use to clean the coils, but make sure to cover the control with a blanket or plastic bag to keep it dry.
TROUBLESHOOTING 33 TROUBLESHOOTING Before Calling for Service Normal Sounds You May Hear 1 2 5 3 4 1 High Pitched Chatter Today's high efficiency compressors may have a high pitched chatter during the cooling cycle. 2 Sound of Rushing Air At the front of the unit, you may hear the sound of rushing air being moved by the fan. 3 Gurgle/Hiss Gurgling or hissing noise may be heard due to refrigerant passing through evaporator during normal operation.
TROUBLESHOOTING Problem Possible Cause The air conditioner is unplugged. Solutions Make sure the air conditioner plug is pushed completely into the outlet. The fuse is blown/circuit breaker is Check the house fuse/circuit breaker box and replace the tripped. fuse or reset the breaker. Air conditioner does not start. Power failure. If power failure occurs, turn the mode control to off.
TROUBLESHOOTING Problem Possible Causes 35 Solutions Mobile data for your smartphone is turned on. The wireless network name (SSID) is Your home appliance set incorrectly. and smartphone is not connected to the Wi-Fi network. The router frequency is not 2.4 GHz. The distance between the appliance and the router is too far. Turn off the Mobile data of your smartphone and register the appliance using the Wi-Fi network.
WARRANTY WARRANTY (USA) ARBITRATION NOTICE: THIS LIMITED WARRANTY CONTAINS AN ARBITRATION PROVISION THAT REQUIRES YOU AND LG TO RESOLVE DISPUTES BY BINDING ARBITRATION INSTEAD OF IN COURT, UNLESS YOU CHOOSE TO OPT OUT. IN ARBITRATION, CLASS ACTIONS AND JURY TRIALS ARE NOT PERMITTED. PLEASE SEE THE SECTION TITLED “PROCEDURE FOR RESOLVING DISPUTES” BELOW.
WARRANTY 37 WARRANTY (CANADA) PROCEDURE FOR RESOLVING DISPUTES: EXCEPT WHERE PROHIBITED AT LAW, ALL DISPUTES BETWEEN YOU AND LG ARISING OUT OF OR RELATING IN ANY WAY TO THIS LIMITED WARRANTY OR THE PRODUCT SHALL BE RESOLVED EXCLUSIVELY THROUGH BINDING ARBITRATION, AND NOT IN A COURT OF GENERAL JURISDICTION. EXCEPT WHERE PROHIBITED AT LAW, YOU AND LG BOTH IRREVOCABLY AGREE TO WAIVE THE RIGHT TO A JURY TRIAL AND TO BRING OR PARTICIPATE IN A CLASS ACTION. Definitions.
WARRANTY Opt Out. You may opt out of this dispute resolution procedure. If you opt out, neither you nor LG can require the other to participate in an arbitration proceeding. To opt out, you must send notice to LG no later than 30 calendar days from the date of the first consumer purchaser’s purchase of the product by either (i) sending an e-mail to optout@lge.com, with the subject line: “Arbitration Opt Out;” or (ii) calling 1-800-980-2973.
