LG W121CE Owner's Manual

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 : WINDOW

EN ENGLISH

MODELS

W121CE SL0 W122CE SL0

*MFL70643102*

MFL70643102

Rev.03_092820

www.lg.com

TABLE OF CONTENTS

3 SAFETY INSTRUCTIONS

4 IMPORTANT SAFETY INSTRUCTIONS

12 PRODUCT OVERVIEW

12 Exterior Parts 12 Interior Parts

13 INSTALLATION

13 Circuit Breaker Installation 13 Installation Overview 14 How to Install the Unit 14 Preparation of the Cabinet 14 Drainage (Optional) 15 Installation of the Cabinet 15 Space for Outside Air Flow 16 Installations of the unit into the Cabinet

17 OPERATION

17 Control Panel and Remote Control 18 Wireless Remote Control 19 Ventilation 19 Air Direction 19 Slinger Fan

20 MAINTENANCE

20 Air Filter

21 TROUBLESHOOTING

21 Before Calling for Service 21 Normal Sounds You May Hear

SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USE

Your safety and the safety of others are very important.

We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.

This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or injure you and others. All safety messages will follow the safety alert symbol and either the word WARNING or CAUTION.

These words mean:

WARNING

You may be killed or seriously injured if you do not follow instructions.

CAUTION

You may be injured or cause damage to the product if you do not follow instructions.

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what may happen if the instructions are not followed.

The following symbols are displayed on units.

This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is is leaked and exposure to an external ignition source, there is a risk of fire.

This symbol indicates that the Operation Manual should be read carefully.

This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual.

This symbol indicates that information is available such as the Operating Manual or Installation Manual.

SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

WARNING

injury to persons when using this product, follow basic precautions, including the following:

INSTALLATION

●Before use, the appliance must be properly installed as described in this manual.

●Contact the authorized service technician for repair or maintenance of this unit.

●Contact the installer for installation of this unit.

●The air conditioner is not intended for use by young children or invalids without supervision.

●Keep any required ventilation openings clear of obstruction.

●Compliance with national gas regulations shall be observed.

●When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.

and authorized personnel only.

●Connect to a properly rated, protected, and sized power circuit to avoid electrical overload.

●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.

●Do not turn on the circuit breaker or power under condition that front grille, cabinet, control box are removed or opened. Otherwise, it may cause fire, electric shock, explosion or death.

●If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified person in order to avoid a hazard.

●Use a dedicated circuit.

●Do not disassemble or modify the product.

●Adhere to all industry recommended safety procedures including the use of long-sleeved gloves and safety glasses.

●Use care when unpacking and installing. The edges of the product may be sharp.

●Disconnect the power cord or circuit breaker before installing or servicing the appliance.

●Keep packaging materials out of the reach of children. These materials can pose a suffocation risk to children.

●Store and install the product where it will not be exposed to temperatures below freezing or exposed to outdoor weather conditions.

other appliance.

SAFETY INSTRUCTIONS

OPERATION

●Use this appliance only for its intended purpose.

●Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled,

or has missing or broken parts, including a damaged cord or plug.

●Repair or immediately replace all power cords that have become frayed or otherwise damaged.

Do not use a cord that shows cracks or abrasion damage along its length or at either end.

●Do not run cord under carpets or mats where it could be stepped on and damaged.

●Keep the cord out from under heavy objects like tables or chairs.

●Do not place the power cord near a heat source.

●Do not use an adaptor or plug the product into a shared outlet.

●Do not tamper with controls.

●If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance,

unplug it immediately, and contact an LG Electronics Customer Information Center.

straight out from the outlet.

●Do not grasp the power cord or touch the appliance controls with wet hands.

●If water enters the product, turn off the power at the main circuit, then unplug the product and call for service.

●If the product has been submerged, contact the LG Electronics Customer Information Center for instructions before resuming use.

●Unplug the product when unused for long periods.

●Unplug the product before cleaning.

●In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a window or door to ventilate the area immediately.

●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 the 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.

●The interior of the product must only be cleaned by a LG Electronics Customer Information Center or a dealer.

●Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage,

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

sure the receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND)

PRONG FROM THE POWER PLUG.

hazards, we strongly discourage the use of an adapter plug.

●Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded

to make sure the receptacle is properly grounded.

●Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter ground terminal might break. Do not use the appliance with a broken adapter plug.

- Situations when the appliance will be disconnected often; Do not use an adapter plug in these situations. Unplugging the power cord frequently can lead to an eventual breakage of the ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet instead.

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SAFETY INSTRUCTIONS

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.

●Do not install the appliance in an area where it is directly exposed to sea air (salt spray).

− Saline conditions are a cause of corrosion. (Particularly, corrosion of the condenser and

evaporator can damage the appliance or impair its performance.)

●Set up windbreak in front of the outdoor unit if installing it in coastal areas.

− Avoid direct exposure to salt winds.

− Install a firm and stiff concrete-wind shield that can withstand salt winds.

OPERATION

●This appliance is not intended for use as a precision refrigeration system. Do not use it for special purposes such as maintaining pets, food, precision machinery, or art objects.

●When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord.

●Make sure the air inlet and outlet are free from obstructions.

●Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents.

●Do not step on or place heavy objects on top of the appliance.

●Do not drink water drained from the appliance.

are used simultaneously.

●Remove the batteries if the remote control is not to be used for an extended period of time.

●Never mix different types of batteries, or old and new batteries for the remote control.

consult a doctor.

●Do not recharge or disassemble the batteries.

MAINTENANCE

●Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water. Use a smooth cloth.

SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

WARNING

Checks to the area

Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.

Work procedure

Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.

General work area

All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.

Checking for presence of refrigerant

The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.

Presence of fire extinguisher

If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

No ignition sources

No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which flammable refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. “No Smoking” signs shall be displayed.

Ventilated area

Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

Checks to the refrigeration equipment

Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer’s technical department for assistance.

The following checks shall be applied to installations using flammable refrigerants:

– The actual refrigerant charge is in accordance with the room size within which the refrigerant containing

parts are installed.

– The ventilation machinery and outlets are operating adequately and are not obstructed.

– If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence

of refrigerant.

– Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be

corrected.

– Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any

substance which may corrode refrigerant containing components, unless the components are constructed of

materials which are inherently resistant to being corroded or are suitably protected against being so corroded.

Checks to electrical devices

Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised.

SAFETY INSTRUCTIONS

Initial safety checks shall include: – Capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. – No live electrical components and wiring are exposed while charging, recovering or purging the system. – Continuity of earth bonding.

Repairs to sealed components

During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being

worked upon prior to any removal of sealed covers, etc.

If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.

Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected.

This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.

Ensure that apparatus is mounted securely.

Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres.

Replacement parts shall be in accordance with the manufacturer’s specifications.

Repair to intrinsically safe components

Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use.

Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere.

The test apparatus shall be at the correct rating.

Replace components only with parts specified by the manufacturer.

Other parts may result in the ignition of refrigerant in the atmosphere from a leak.

Cabling Check

Cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans.

Detection of flammable refrigerants

Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.

Leak detection methods

The following leak detection methods are deemed acceptable for systems containing flammable refrigerants.

Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.)

Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used.

Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed.

Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work.

If a leak is suspected, all naked flames shall be removed/extinguished.

If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak.

Oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing process.

Removal and evacuation

When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to:

– Remove refrigerant.

– Purge the circuit with inert gas.

– Evacuate.

– Purge again with inert gas.

– Open the circuit by cutting or brazing.

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