LG MFL68887501 Air Conditioner Owner’s Manual

Please read this manual carefully before operating your set and retain it for future reference.
Ceiling Concealed Duct – High / Middle Static
Original instruction

www.lg.com

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

WARNING

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 turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened.
– Otherwise, it may cause fire, electric shock, explosion or death.
Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion.
– There is the risk of death, injury, fire or explosion.

Operation

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.
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 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 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.

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.
Contact the authorized service technician for repair or maintenance of this unit.
Contact the installer for installation of this unit.
When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.
Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.
The user must carry out checks and cleaning of routine to avoid defective performance.
– In a special situation, only service personnel can carry out repair work.

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 anything 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.
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.

Prior to Operation

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.

Current

Maintenance and Service

CAUTION

Before performing any maintenance, turn off the main power to the system.

Grille, Case, and Remote Controller

Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.

NOTICE

Power supply must be disconnected before cleaning the indoor unit.

Air Filters

The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary.

Never use any of the followings:
Water hotter than 40 °C Could cause deformation and/or discoloration.
Volatile substances. Could damage the surfaces of the air conditioner.

Remove the Air filters.
◆ Take hold of the tab and pull slightly forward to remove the filter. CAUTION
When the air filter is to be removed, do not touch the metal parts of the indoor unit. It may cause an injury.
Clean dirt from the air filter using a vacuum cleaner or washing with water.
◆ If dirt is conspicuous, wash with a neutral detergent in lukewarm water.
◆ If hot water (50 °C or more) is used, it may be deformed.
After washing with water, dry well in the shade.
◆Do not expose the air filter to direct sunlight or heat from a fire when drying it.
Install the air filter.

When the air conditioner is not going to be used for a long time.

Helpful information

The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6 % of the electricity used to operate the air conditioner will be wasted.

Operation Tips

Troubleshooting Tips! Save time and money!

Check the following points before requesting repairs or service…. If the malfunction persists,
please contact your dealer.

NOTICE

WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT. The indoor side is not water resistant and should not be exposed to excess water.

Model (s) :
*RNU07GBHA4, *RNU09GBHA4, *RNU12GBHA4, *RNU15GBHA4, *RNU18GBHA4,
*RNU24GBHA4, *RNU28GBHA4, *RNU07GM1A4, *RNU09GM1A4, *RNU12GM1A4
*RNU15GM1A4, *RNU18GM1A4, *RNU24GM1A4, *RNU07GM2A4, *RNU09GM2A4,
*RNU12GM2A4, *RNU15GM2A4, *RNU28GM2A4, *RNU36GM2A4, *RNU42GM2A4,
*RNU18GM3A4, *RNU24GM3A4, *RNU28GM3A4, *RNU48GM3A4, *RNU48GM3B4,
*RNU54GM3A4, *RNU54GM3B4, *RNU76GB8A4, *RNU96GB8A4
* : A,C

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LG MFL68887501 Air Conditioner Owner’s Manual

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