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OWNER’S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
CEILING CASSETTE - 4WAY
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www.lg.com |
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MFL42763413 |
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Rev.01_062719 |
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Copyright © 2013 - 2019 LG Electronics Inc. All Rights Reserved. |
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2 |
TIPS FOR SAVING ENERGY |
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TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:
•Do not cool excessively indoors. This may be harmful for your health and may consume more electricity.
•Block sunlight with blinds or curtains while you are operating the air conditioner.
•Keep doors or windows closed tightly while you are operating the air conditioner.
•Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
•Speed up the fan to cool or warm indoor air quickly, in a short period of time.
•Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.
•Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
IMPORTANT SAFETY INSTRUCTIONS |
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IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product
! WARNING
It can result in serious injury or death when the directions are ignored
! CAUTION
It can result in minor injury or product damage when the directions are ignored
! WARNING
•Installation or repairs made by unqualified persons can result in hazards to you and others.
•The product shall be installed according to the Wiring regulations of the corresponding country.
•The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.
•Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
•This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
Installation
•Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. There is risk of fire or electric shock.
•For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product. There is risk of fire or electric shock.
•Always ground the product. There is risk of fire or electric shock.
•Install the panel and the cover of control box securely. There is risk of fire or electric shock.
•Always install a dedicated circuit and breaker. Improper wiring or installation may cause fire or electric shock
•Use the correctly rated breaker or fuse. There is risk of fire or electric shock.
•Do not modify or extend the power cable. There is risk of fire or electric shock.
•Do not install, remove, or re-install the unit by yourself (customer). There is risk of fire, electric shock, explosion, or injury.
•Be cautious when unpacking and installing the product. Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.
•For installation, always contact the dealer or an Authorized Service Center. There is risk of fire, electric shock, explosion, or injury.
•Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product.
•Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
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4 |
IMPORTANT SAFETY INSTRUCTIONS |
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• Do not let the air conditioner run for a long time when the humidity is very high and a door or |
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a window is left open. Moisture may condense and wet or damage furniture. |
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Operation
•Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.
•Do not place anything on the power cable. There is risk of fire or electric shock.
•Do not plug or unplug the power supply plug during operation. There is risk of fire or electric shock.
•Do not touch(operate) the product with wet hands. There is risk of fire or electrical shock.
•Do not place a heater or other appliances near the power cable. There is risk of fire and electric shock.
•Do not allow water to run into electric parts. It may cause There is risk of fire, failure of the product, or electric shock.
•Do not store or use flammable gas or combustibles near the product. There is risk of fire or failure of product.
•Do not use the product in a tightly closed space for a long time. Oxygen deficiency could occur.
•When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. Do not use the telephone or turn switches on or off. There is risk of explosion or fire
•If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.
•Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives. There is risk of property damage, failure of product, or electric shock.
•Do not open the inlet grill of the product during operation.(Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.
•When the product is soaked (flooded or submerged), contact an Authorized Service Center. There is risk of fire or electric shock.
•Be cautious that water could not enter the product. There is risk of fire, electric shock, or product damage.
•Ventilate the product from time to time when operating it together with a stove, etc. There is risk of fire or electric shock.
•Turn the main power off when cleaning or maintaining the product. There is risk of electric shock.
•When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.
•Take care to ensure that nobody could step on or fall onto the outdoor unit. This could result in personal injury and product damage.
IMPORTANT SAFETY INSTRUCTIONS |
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! CAUTION
Installation
•Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product.
•Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage.
•Keep level even when installing the product. To avoid vibration or water leakage.
•Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors.
•Use two or more people to lift and transport the product. Avoid personal injury.
•Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.
Operation
•Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.) This could harm to your health.
•Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of property.
•Do not block the inlet or outlet of air flow. It may cause product failure.
•Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.
•Do not touch the metal parts of the product when removing the air filter. They are very sharp! There is risk of personal injury.
•Do not step on or put anyting on the product. (outdoor units) There is risk of personal injury and failure of product.
•Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.
•Do not insert hands or other objects through the air inlet or outlet while the product is operated. There are sharp and moving parts that could cause personal injury.
•Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.
•Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.
•Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or explosion
•Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. They may burn or explode.
•If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.
•If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.
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<![endif]>ENGLISH
6 |
TABLE OF CONTENTS |
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TABLE OF CONTENTS
2 |
TIPS FOR SAVING EN- |
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Installer Setting - Checking Address of |
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ERGY |
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Central Control |
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OWNER'S INSTRUC- |
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3 IMPORTANT SAFETY IN- |
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TION |
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STRUCTIONS |
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Cooling Mode - Standard Operation |
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BEFORE USE |
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Cooling Mode - Power Cooling |
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Preparing for operation |
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Auto Operation Mode |
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Usage |
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Dehumidification Mode |
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Cleaning and maintenance |
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Fan Mode |
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Service |
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Temperature Setting/Room Tempera- |
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PRODUCT INTRODUC- |
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ture checking |
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Airflow Setting |
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TION |
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Plasma Purification(Optional) |
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8 Name and function of parts |
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Celsius/Fahrenheit Switching |
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Notes for Operation |
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Individual vane angle control |
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Parts and Functions |
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Timer |
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Forced Operation |
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MAINTENANCE AND |
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Operating Method |
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SERVICE |
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Operation Indication Lamps |
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Indoor Unit |
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Auto Restart Function |
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Wireless Remote Controller |
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Purifying filter(Optional) |
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OPERATING INSTRUC- |
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Operation Tips! |
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When the air conditioner is not |
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TION |
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going.... |
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How to insert the Batteries |
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Troubleshooting Tips! Save time and |
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14 Wireless Remote Controller Mainte- |
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money! |
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nance |
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Call the service immediately in the fol- |
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INSTALLATION IN- |
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lowing situations |
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STRUCTIONS
15Installer Setting - How to enter installer setting mode
16Installer Setting - Installer Setting Code Table
17Installer Setting - Setting Address of Central Control
BEFORE USE |
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BEFORE USE
Preparing for operation
•Contact an installation specialist for installation.
•Use a dedicated circuit.
Usage
•Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time.
•Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or other heating devices.
•Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices, food, pets, plants, and art objects). Such usage could damage the items.
Cleaning and maintenance
•Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling sharp metal edges.
•Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leading to possible electric shock.
•When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit.
Service
For repair and maintenance, contact your authorized service dealer.
If anyone other than a licensed Professional installs, repairs, or alters LG Electronics Air Conditioning Products, the warranty is voided.
- All costs associated with repair are then the full responsibility of the owner.
<![endif]>ENGLISH
<![endif]>ENGLISH
8 PRODUCT INTRODUCTION
PRODUCT INTRODUCTION
Name and function of parts
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1.Indoor unit
2.Outdoor unit
3.Remote controller
4.Inlet air
5.Discharge air
6.Refrigerant piping, connection electric wire
7.Drain pipe
8.Ground wire
Wire to ground outdoor unit to prevent electrical shocks.
PRODUCT INTRODUCTION 9
Notes for Operation
Suggestion for Energy Saving
•Do not over-cool the space. This may be harmful for your health and may consume more electricity.
•Block sunlight with blinds or curtains while you are operating the air conditioner.
•Keep doors or windows closed tightly while you are operating the air conditioner.
•Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
•Speed up the fan to cool or warm indoor air quickly, within a short period of time.
•Open windows regularly for ventilation. The indoor air quality may deteriorate if the air conditioner is used for long durations.
•Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or reduce the unit performance.
Parts and Functions
Type 1
5 6 7 8 9 10
Type 2
1 2
3
4 
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Front Panel |
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Timer |
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Air Discharge |
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Remote Sensor |
3 |
Air Inlet |
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Filter Sign |
4 |
Signal Receiver |
10 |
On/Off |
5 |
Forced Operation |
11 |
Lamp |
6 |
Defrost Mode |
12 |
Forced Operation Button |
!NOTE
•The number and location of operation lamps may vary according to the model of the air conditioner.
•The feature may be changed according to the type of model.
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10 PRODUCT INTRODUCTION
Forced Operation
Forced operation is used when the remote controller can’t be used.
1 The operation will be started if the ON/OFF button is pressed.
Type 1 |
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Type 2 |
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Forced Operation Button |
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Forced Operation Button |
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Room Temp. |
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24 °C |
21 °C≤ Room Temp. |
Room Temp. < 21 °C |
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< 24 °C |
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Operating mode |
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Cooling |
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Healthy |
Heating |
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Dehumidification |
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Indoor FAN Speed |
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High |
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High |
High |
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Setting Temperature |
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22 °C |
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23 °C |
24 °C |
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Heat pump Model |
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Room Temp. |
≥ |
24 °C |
21 °C≤ Room Temp. |
Room Temp. < 21 °C |
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< 24 °C |
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Operating mode |
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Cooling |
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Healthy |
Heating |
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Dehumidification |
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Indoor FAN Speed |
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High |
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High |
High |
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Setting Temperature |
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22 °C |
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23 °C |
24 °C |
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Test Operation
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room temperature, and resets after 18 minutes. During test operation, if the remote controller signal is received, the unit can be set by the remote controller. If you want to use this operation, Press and hold the ON/OFF button for 3 ~ 5 seconds, then the buzzer sound 1 will ‘beep’. If you want to stop the operation, re-press the button.
Operating Method
The signal receiver is inside the unit.
•Point the remote control towards the signal receiver at the right side of the air conditioner to operate it.
−There should not be any obstacles blocking the remote controller.
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