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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 suspended air conditioner
MFL68525413 www.lg.com
P/NO : MFL68525413 |
Copyright © 2018 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.
•Installation MUST comply with local building codes.
If there is no local codes, comply with the Nation Electrical Code NFPA 70/ANSI C1-1003, Canadian Electrical Code Part1 CSA C.22.1. or current edition.
•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.
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.
•Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. Moisture may condense and wet or damage furniture.
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4 |
IMPORTANT SAFETY INSTRUCTIONS |
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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 electric 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. 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 turning 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 smell 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 should 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 to 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 should step on or fall onto the outdoor unit. This could result in personal injury and product damage.
! CAUTION
Installation
•This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.
•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.
IMPORTANT SAFETY INSTRUCTIONS |
5 |
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• Do not install the product where the noise or hot air from the outdoor unit could damage the |
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neighborhoods. It may cause a problem for your neighbors. |
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• Use two or more people to lift and transport the product. Avoid personal injury. |
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• Do not install the product where it will be exposed to sea wind (salt spray) directly. It may |
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cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, |
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could cause product malfunction or inefficient operation. |
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Operation
•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 being supervised not to play with appliance.
•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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6 |
TABLE OF CONTENTS |
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TABLE OF CONTENTS
2TIPS FOR SAVING ENERGY
3IMPORTANT SAFETY INSTRUCTIONS
7BEFORE USE
7Preparing for operation
7Usage
7Cleaning and maintenance
7Service
8PRODUCT INTRODUCTION
8Name and function of parts
9Operation Indication Lamps
10 Wireless Remote Controller
12 OPERATING INSTRUCTION
12 How to insert the Batteries
12Wireless Remote Controller Maintenance
13INSTALLATION INSTRUCTIONS
13 |
Installer Setting - Setting Address of Central Control |
13 |
Installer Setting - Checking Address of Central Control |
14 |
OWNER'S INSTRUCTION |
14 |
Cooling Mode -Standard Operation |
14Cooling Mode - Power Cooling
15Heating Mode
16Auto Changeover Mode
16Auto Changeover Mode - Setting the Mode Change Temperature
17Auto Operation Mode
18Dehumidification Mode
19Fan Mode
20Temperature Setting/Room Temperature checking
21Airflow setting
21Celsius/fahrenheit switching
22Timer
23MAINTENANCE AND SERVICE
23Indoor Unit
24Operation tips!
25Troubleshooting Tips! Save time and money!
25 Call the service immediately in the following situations
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.
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8 PRODUCT INTRODUCTION
PRODUCT INTRODUCTION
Name and function of parts
4 6 7
2
1 4
3
8
1 Indoor unit
2 Outdoor unit
3 Remote controller
4 Inlet air
5 Discharge air
6 Refrigerant piping, connection electric wire
7 Drain pipe
8Ground wire
Wire to ground outdoor unit to prevent electrical shocks.
Operation Indication Lamps
PRODUCT INTRODUCTION 9
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Forced operation : Operation procedures when remote control can’t be used. |
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Defrost Mode : Lights up during defrost mode or hot start operation. |
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(heat pump model only) |
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Timer : Lights up during timer operation. |
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Signal Receptor : Receives the signal from remote control (signal receiving sound: two short |
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beeps and one long beep) |
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Filter sign : Lights up after 2400 hours from the time of first operation. |
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On/Off : Lights up during system operation. |
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10 PRODUCT INTRODUCTION
Wireless Remote Controller
This air-conditioner is equipped with wireless remote controller basically. But if you want to be available with wired remote controller, you pay for it.
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VANE ANGLE button (Useless) |
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Used to set each vane angle. |
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FUNCTION SETTING button (Useless) |
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Used to set or clear auto clean, smart clean, |
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electric heater or individual vane angle control. |
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ON/OFF button |
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Used to turn on/off the unit. |
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JET COOL button |
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Speed cooling operates super high fan speed. |
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LEFT/RIGHT AIRFLOW button (Useless) |
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Used to set the desired left/right(horizontal) |
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airflow direction. |
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UP/DOWN AIRFLOW button |
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Used to stop or start louver movement and |
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set the desired up/down airflow direction. |
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ON TIMER button |
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Used to set the time of starting operation. |
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SLEEP TIMER button |
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Used to set the time of sleeping operation. |
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(Refer to timer setting) |
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SET / CLEAR button |
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Used to SET / CLEAR the timer. |
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Used to set the current time (if it input for 3 |
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seconds) |
Operation Mode
Cooling Mode
Auto Mode or Auto Changeover
Dehumidification mode
Heating Mode
Fan Mode
• Cooling Model(), Heat Pump Model(
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10PLASMA button (Useless)
Used to start or stop the plasma-purification function.
11ROOM TEMPERATURE SETTING button Used to select the room temperature.
12OPERATION MODE SELECTION button Used to select the operation mode.
13INDOOR FAN SPEED SELECTION button Used to select fan speed in four steps low, medium, high and auto.
14ROOM TEMPERATURE CHECKING button Used to check the room temperature.
15OFF TIMER button
Used to set the time of stopping operation.
16TIMER SETTING(Up/Down)/LIGHT button Used to set the timer.
Used to adjust the brightness.(if it is not time adjust mode)
17RESET button
Used to reset the remote controller.
PRODUCT INTRODUCTION 11
! CAUTION
Caution of handling the Remote Controller
-Aim at the signal receiver on the wired remote controller so as to operate.
-Be sure that there are no obstructions between the remote controller and the signal receptor.
-Do not drop or throw the remote controller.
-Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source.
-Block a strong light over the signal receptor with a curtain or etc. so as to prevent the abnormal operation. (ex:electronic quick start, ELBA, inverter type fluorescent lamp)
!NOTE
-The wireless remote controller do not operate the swirl mode.
-The actual product can be different from above contents depending upon model type.
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12 OPERATING INSTRUCTION
OPERATING INSTRUCTION
How to insert the Batteries
Remove the battery cover by pulling it according to the arrow direction.
Insert new batteries making sure that the (+) and (-) of battery are installed correctly.
Reattach the cover by sliding it back into position.
! NOTE
-Always use/replace both batteries of same type.
-If the system is not to be used for a long time, remove the batteries to save their working life.
-If the display screen of remote controller starts, fading replace both of the batteries.
Wireless Remote Controller
Maintenance
Choose a suitable place where its safe & easy to reach.
Fix the holder to wall etc with the supplied screws firmly.
Slide the remote controller inside the holder.
! NOTE
-Remote controller should never be exposed to direct sunlight.
-Signal transmitter & receiver should always be clean for proper communication. Use a soft cloth to clean them.
-In case some other appliances also get operated with remote control, change their position or consult your serviceman.
INSTALLATION INSTRUCTIONS 13
INSTALLATION INSTRUCTIONS
Installer Setting - Setting Address of Central Control
1 With the MODE button pressed, press the RESET button.
2 By using the temperature setting button, set the indoor unit address.
• Setting range : 00 ~ FF
3 After setting the address, press the ON/OFF button toward the indoor unit 1 time.
4 The indoor unit will display the set address to complete the address setting.
- The address display time and method can differ by the indoor uint type.
5 Reset the remote controller to use the general operation mode.
RESET button
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Installer Setting - Checking Address of Central Control
1 With the FUNC. button pressed, press the RESET button.
2Press the ON/OFF button toward the indoor unit 1 time, and the indoor unit will display the set address in the display window.
- The address display time and method can differ by the indoor unit type.
3 Reset the remote controller to use the general operation mode.
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14 OWNER'S INSTRUCTION
OWNER'S INSTRUCTION
Cooling Mode - |
Cooling Mode - Power Cooling |
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Standard Operation |
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1 |
Press the ON/OFF button. |
1 |
Press the ON/OFF button. |
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The unit will respond with beep sound. |
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The unit will respond with beep sound. |
2 |
Press MODE button to select Cooling |
2 |
Press MODE button to select Cooling |
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Mode. |
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Mode. |
3 |
Set the desired temperature by pressing |
3 |
Press the JET COOL button. The unit will |
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TEMP button. |
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operate in super high fan speed in cooling |
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Press ROOM TEMP button to check the |
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mode. |
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room temperature. When setting the |
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To cancel the Power Cooling Mode press |
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desired temperature is higher than room |
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the JET COOL or FAN SPEED or TEMP. |
temperature, cooling wind isn’t blow out. |
again and the unit will operate in high fan |
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- Setting Temp. Range : 18~30 °C(64~86 °F) |
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speed in Cooling Mode. |
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Heating Mode
This Function is only for H/P model.
OWNER'S INSTRUCTION 15
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1Press the ON/OFF button.
The unit will respond with beep sound.
2Press MODE button to select Pleating Mode.
3Set the desired temperature by pressing TEMP button.
Press ROOM TEMPERATURE CHECKING button to check the room temperature. When setting the desired temperature is lower than room temperature, heating wind isn't blow out.
•Setting Temp. Range in Heating Mode : 16~30°C (60°F~86°F)
4Set the fan speed again. You can select the fan speed in four steps - low, medium, high, or chaos. Each time the button is pressed, the fan speed mode is shifted.
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16 OWNER'S INSTRUCTION
Auto Changeover Mode
This Function is only available on some products.
1 Press the ON/OFF button.
The unit will respond with beep sound.
2 Press MODE button to select Auto Changeover Mode.
3 Set the desired room temperature.
• Setting Temp. Range in Auto Changeover
Mode : 18~30°C (64~86°F)
4 You can select the fan speed in four steps - low, medium, high and chaos. Each time the button is pressed, the fan speed mode is shifted.
During Auto changeover Mode
- The air conditioner changes the operation mode automatically to keep indoor temperature.
When room temperature vary
over ±2 °C(4 °F) with respect to setting temperature, air conditioner keeps the room temperature within ±2 °C(4 °F) with respect to setting temperature by auto changeover mode.
Auto Changeover Mode - Setting the Mode Change Temperature
This Function is to set the operating mode of the Auto Changeover Mode.
1In Auto Changeover Mode, Press FUNCTION button to select Setting the Mode Change Temperature. When function setting button is pressed, it repeats in the order of Auto Clean → Smart Clean → Mode Change Temperature → Sub function setting mode clear.
2Press the TEMPERATURE SETTING button to set desired Mode Change Temperature. (Default value is 2°C(4°F).)
The Mode Change Temperature is the difference of temperature when from cooling mode to heating mode or from heating mode to cooling mode.
Ex) When setting temperature is 25 °C(76 °F) and room temperature is 20 °C(68 °F), then operating mode is heating. If you set the mode change temperature to 2 °C(4 °F), when the room temperature up to 27 °C(25 °C + 2 °C)(80 °F(76 °F + 4 °F)), the unit start cooling operation.