W18AU - Air Conditioning LG - Free user manual and instructions

USER MANUAL W18AU LG

AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference.

2. Operating Instructions

3. Care and Maintenance

Write the model and serial numbers here:Model #Serial #You can find them on a label on the side of each unit.Dealer's NameDate PurchasedInside you will find many helpful hints on how to useand maintain your air conditioner properly. Just a littlepreventive care on your part can save you a greatdeal of time and money over the life of your airconditioner.You'll find many answers to common problems in thechart of troubleshooting tips. If you review our chart ofTroubleshooting Tips first, you may not need to callfor service at all.• Contact the authorized service technician for repairor maintenance of this unit.• Contact the installer for installation of this unit.• The air conditioner is not intended for use by youngchildren or invalids without supervision.• Young children should be supervised to ensure thatthey do not play with the air conditioner.• When the power cord is to be replaced, replacementwork shall be performed by authorized personnelonly.• Installation work must be performed in accordancewith the national wiring standards by authorizedpersonnel only.WARNING WARNING WARNING CAUTION Never Do This Always Do This Precautions Safety Precautions

ENGLISH To prevent injury and property damage, follow these instructions.Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which isindicated by the following symbols.■ The following items are classified by these symblos.Plug in the power plugproperly.Do not operate or stop theunit by inserting or pullingout the power plug.Do not damage or use anunspecified power cord.• Otherwise, it will cause electricshock or fire due to heatgeneration or electric shock.• It will cause electric shock or firedue to heat generation.• It will cause electric shock or fire. In the supply cord is damaged, it mut bereplaced by the manufacturer or itsservice agent or a similarly quallfiedperson in order to avoid a hazard.(Y Attachment)Do not modify power cordlength or share the outletwith other appliances.Do not operate with wethands or in dampenvironment.Do not direct airflow atroom occupants only.• It will cause electric shock or firedue to heat generation.• It may cause electric shock. • This could damage your health.Always perform groundingwork.Do not allow water to runinto electric parts.Always install air leakagebreaker and a dedicatedswitching board. No grounding may cause electricshock.• It may cause failure of machineor electric shock.• No installation may cause fireand electric shock accident.Unplug the unit if strangesounds, smell, or smokecomes from it.Do not use the socket if it isloose or damaged.Do not open the entranceduring operation.• It may cause fire and electricshock accident.• It may cause fire and electricshock.• It may cause electric shock.Keep firearms away.Do not use the power cord close tothe heating tools.Do not use the power cord nearflammable gas or combustibles, suchas gasoline, benzene, thinner, etc.• It may cause fire. • It may cause fire and electricshock.• It may cause an explosion or fire.This symbol shows the possibility of death or serious injury.This symbol indicates the possibility of injury or damage to property.CAUTION CAUTION WARNING WARNING

Never touch the metal parts of the unit when removing the filter. Do not clean the air conditioner with water. Ventilate well when used together with a stove, etc.

• They are sharp and may cause injury.

• Water may enter the unit and degrade the insulation. It may cause an electric shock.

• An oxygen shortage may occur. When cleaning the unit, first make sure the power and breaker are turned off. Do not put a pet or house plant where it will be exposed to direct air flow. Do not use appliance for special purpose such as animals or vegetables, precision machine, or conservation of art articles.

• Since the fan rotates at high speed during operation, it may cause injury.

• This could injure the pet or plant. • It may cause damage of animals or vegetables or loss of property. Stop operation and close the window in storm or hurricane. Hold the plug by the head of the power plug when taking it out. Turn off the main power switch when not using it for a long time.

• Operation with windows opened may cause wetting of indoor and soaking of household furniture.

• It may cause electric shock and damage.

• It may cause failure of product or fire. Do not place obstacles around the absorption inlet or instead of blowing-out inlet. Ensure that an installation console of the outdoor appliance is not damaged due to the use for a long time. Always insert the filters securely. Clean it once every two weeks.

• It may cause failure of appliance or accident.

• If leaving appliance damaged, there is concern of damage due to the falling of product.

• Operation without filters may cause failure. Do not use strong detergent such as wax or thinner but use a soft cloth. Do not place heavy object on the power cord and take care so that the cord should not be pressed. Do not drink water drained from air conditioner.

• Appearance may be deteriorated due to change of product color or scratching of its surface.

• There is danger of fire or electric shock.

• It contains contaminants and will make you sick. Ventilate before operating air conditioner when gas goes out. Do not disassemble or modify products randomly.

• It may cause explosion, fire and, burn. • It may cause failure and electric shock. Use caution when unpacking and installing. Sharp edges could cause injury. If water enters the product, turn the power switch of the main body of appliance off. After taking the power-plug out from the socket, contact with the service center.Prior to Operation Safety Precautions

ENGLISH Preparing for operation Contact an installation specialist for installation.Plug in the power plug properly.Do not use a damaged or non-standard power cord. Do not share the same outlet with other appliancesDo not use an extension cord.Do not start/stop operation by plugging/unplugging the power cord.

Usage Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do notexpose 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 otherheating devices.Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices,food, pets, plants, and art objects). Usage in such a manner could harm such property.

Cleaning and maintenance Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling sharpmetal edges.Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leadingto possible electric shock.When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at avery high speed during operation. There is a possibility of injury if the unit’s power is accidentallytriggered on while cleaning inner parts of the unit.

Service For repair and maintenance, contact your authorized service dealer.OFF MED FAN HIGH COOL LOW FAN LOW COOL MED COOL

Location and Function of Controls Operating Instructions Controls The controls will look like one of the following.ENGLISH ■ OPERATION High Cool ( ), Med Cool ( ) and Low Cool ( ) provide cooling with different fan speeds. Med Fan ( ) or Low Fan ( ) provides air circulation and filtering without cooling. Off ( ) turns the air conditioner off. NOTE: If you move the switch from a cool setting to off or to a fan setting, wait at least 3 minutes before switching back to a cool setting. Cooling Descriptions For Normal Cooling- Select High Cool or Med Cool with the Operation knob at the midpoint of Thermostat knob. For Maximum Cooling- Select High Cool with the Operation knob at the highest number available on your Thermostat knob. For Quieter & Nighttime Cooling- Select Low Cool with the Operation knob at the midpoint of Thermostat knob. ■ THERMOSTAT The THERMOSTAT is used to maintain the room temperature. The compressor will cycle on and off to keep the room at the same level of comfort. When you turn the knob to a higher number(the right side) and the indoor air will become cooler. The 5 or 6 position (the middle position of arc) is a normal setting for average conditions. ■ AUTO SWING Auto swing switch controls the horizontal air direction by air swing system (not on all models). ON ( ) : Auto swing is operated. OFF ( ) : Auto swing is not operated. CAUTION When the air conditioner has been performed its cooling operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation again.

AUTO SWING (for some models) ON ( ) : Air swing is operated while OPERATION knob is set to the COOL or HEAT position. OFF ( ) : Stops the operation of air swing.

• THERMOSTAT Turn the thermostat control to the desired setting. The control position is a normal setting for average conditions. You can change this setting, if necessary, in accordance with your temperature preference. The thermostat automatically controls cooling or heating, but the fan runs continuously whenever the air conditioner is in operation. If the room is too warm, turn the thermostat control clockwise. If the room is too cool, turn the thermostat control counterclockwise.

• HEATER ( ) LAMP When the unit sets heating operation condition, the green lamp is lighted. When the frost settles on the heat exchanger of the outside, defrosting is made automatically and the green lamp is turned off. The unit may give a "hiss" and the fan motor stops for 1 to 10 minutes. This should not be regarded as a problem. After defrosting, the heating operation begins again.

• OPERATION OFF ( ) : Turns the air conditioner off. LOW FAN ( ) : Permits the low fan speed operation without cooling (heating). LOW COOL ( ) : Permits cooling with the low fan speed operation. HIGH COOL ( ) : Permits cooling with the high fan speed operation. LOW HEAT ( ) : Permits heating with the low fan speed operation. HIGH HEAT ( ) : Permits heating with the high fan speed operation. CAUTION When the air conditioner has been performed its cooling operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation again.

The controls will look like one of the following. Thermostat Operation9

The remote control and control panel will look like one of the following pictures.POWEROperation starts when this button is pressed and stops when you press the button again. OPERATION MODE SELECTORHeating function is only available in some models.Cooling mode Heating modeFan mode ON/OFF TIMERThe timer can be set to start and stop the unit in hourly increments (up to 12 hours).Temperature increases only by 2°C and no longer increase thereafter.

Dry mode is used to remove humidity from the room without additional cooling. Once the set temperature is reached, the compressor and circulation fan turns off. Fan speed is pre-set and cannot be adjusted. Dry modeSelect cooling mode to cool the room.Select heating mode to heat the room.Select fan mode for basic ventilating fan operation. Remote Control Operations Operating Instructions ENGLISH10

For increased power while cooling or heating, select a higher fan speed. Cooling Model: 3 steps{High[F3] ➔ Low[F1] ➔ Med[F2] Heating Model: 2 steps{High[F2] ➔ Low[F1] TEMPERATURE CONTROL The thermostat monitors room temperature to maintain the desired temperature. The thermostat can be set between 16°C~30°C (61°F~81°F). The unit takes an average of 30 minutes to adjust the room temperature by 1°C (1.8°F). AUTO SWING BUTTON (available in some models) Allows the unit to automatically swing its louvers left and right during operation. If the option is de-selected, the louvers will stop in their last position and orient the airflow in the corresponding direction. REMOTE SENSOR

Push out the cover on the back of the remote control with your thumb Pay attention to polarity and insert two new AAA 1.5V batteries. Reattach the cover.

In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. NOTE: Do not use rechargeable batteries. Make sure that both batteries are new.

• In order to prevent discharge, remove the batteries from the remote control if the air conditioner is not going to be used for an extended period of time Keep the remote control away from extremely hot or humid places. To maintain optimal operation of the remote control, the remote sensor should not be exposed to direct sunlight.

• The remote control can be mounted on a wall using the mountable holder. Inserting the Remote Control Batteries Auto RestartCLOSE VENT OPEN Adjusting the Air Flow Direction Operating Instructions Care and Maintenance Care and Maintenance

ENGLISH Vent Control The vent control is located above the control knobs. For maximum cooling efficiency, CLOSE the vent. This will allow internal air circulation. OPEN the vent to discharge stale air. Adjusting the air flow Direction Airflow can be adjusted by changing the direction of the air conditioner°s louvers. This can also increase the cooling efficiency of the air conditioner. Adjusting Horizontal Air Flow Direction Adjusting the vertical louvers left and right will change horizontal airflow. Adjusting Vertical Air flow Direction Adjusting the horizontal louvers up and down will change vertical airflow. The louvers can be adjusted by nudging the back or up and down of the vertical louvers. Recommended Orientation of louvers Adjust louvers to face upwards when cooling to maximize cooling efficiency. Turn the power off and unplug the power plug before cleaning the air conditioner. Grille and Case Use water and mild detergent when cleaning. Do not use bleach or harsh abrasives. Rear Coils Check the rear coils on a regular basis. It should be professionally steam- cleaned if it is clogged with dirt or soot. Professional cleaning service is available at your local dealer or service center. To open the vent, pull the lever toward you. To close it, push it in.Fig. 4 Fig. 3 Fig. 2 DRAIN PAN DRAIN HOSE Fig. 1 CABINETSCREWDrain pipeDrain cap

Air Filter The air filter behind the inlet grille should be checked and cleaned at least once every 2 weeks (or as necessary) to maintain optimal performance of the air conditioner. How to remove the air filter The grille may be opened from the top or bottom for easy maintenance after installation. Open the inlet grille by pulling off the exposed door on the bottom or top of the unit (based on installation). Refer to the Using the reversible inlet grille in the Hardware Installation Guide section if you want to change the opening side. Pull the tab slightly to release the filter. Pull the filter in the same direction as the opening. Clean the filter with warm, soapy water. The water should be below 40°C (104°F). Rinse off and gently shake off excess water from the filter. L et it dry before replacing it.

The base pan may overflow due to high humidity. To drain the excess water, remove the drain cap from the back of the unit and secure the drainpipe. Take the drain pan which is shipped in the air discharge or on the barrier. Remove the rubber plug from the bottom of the base pan. Install the drain pan over the corner of the cabinet where you removed the plug with 4 (or 2) screws. Connect the drain hose to the outlet located at the bottom of the drain pan. You can purchase the drain hose or tubing locally to satisfy your particular needs. (Drain hose is not supplied). Select the most appropriate connection from among the following figures (by considering the hole of the unit) to fit drain pan to your own unit. Drainage (Optional)

ENGLISH Product Features CAUTION This appliance should be installed in accordance with national wiring regulations. This guide acts as a guide to help to explain product features.

Circuit Breaker Installation and Parts for Installation Read thoroughly and follow all directions provided. A circuit breaker must be installed between the power source and the unit if the plug is not used (see illustration below).10 ~15mmOver 50cm HEAT RADIATIONFENCEAWNING FOAM COOLED AIR 70-150cmLevel1/4 BubbleShipping screwsWhite styrofoam block Installation Steps Hardware Installation

ENGLISH Select the Best Location Measure the space for installation to assure a good fit.The air conditioner must be installed firmly into place toprevent vibration and noise.Avoid exposure to direct sunlight.Remove all obstacles from the rear of the unit. Theremust be at least 50cm (20in.) of cleared space aroundthe rear of the unit. Obstacles restricting the airflowmay reduce the cooling efficiency of the unit.The unit should be installed with a slight tilt towards theoutside (approx. 3°) to allow condensed water to drain.(About 10~15mm or 1/4 bubble with level)NOTE: The external grille must be exposed outside for airdischarge.

Remove the Air Conditioner From the Case Remove 2 shipping screws from the back of the case.Remove the 2 screws on each side of the case. Keep these for later use.Slide out the air conditioner from the case by pulling the base-pan handle while bracing the case.Remove the white Styrofoam shipping block from the compressor. (Applicable for some models)

Attaching the Drain Pan (Optional) The drain pan is used to collect condensed water.The base-pan may overflow due to high humidity. The base-pan may also collect excess water when inreverse mode (in Reverse Cycle models only). To drain the excess water, remove the drain cap from the backof the unit and secure the drainpipe as follows:1. Remove the drain pan located in the air discharge or on the barrier.2. Remove the rubber cap from the hole on the base-pan. (Not applicable to all models)3. Install the drain pan to the left corner of the cabinet with 2-4 screws.4. Connect the drain hose to the hole located on the bottom of the drain pan.You can purchase the drain hose or tubing locally to satisfy your particular needs. (Drain hose not included)NOTE: UNIT MAY BE SUPPORTED BY ASOLID FRAME FROM BELOW ORBY A HANGER FROM A SOLIDOVERHEAD SUPPORT.FLASH OR SEAL AROUND EXTERNALWALL FRAME OR ARCHITRAVESTURDY TIMBERFRAME ALL ROUND UNIT DRAIN CHUTEEXTERNAL SUPPORTFRAME AT BALANCEPOINT OF RAC Preferred method of installation into a timber framed wall, partition or window. ALTERNATIVELY, BRACKETSAS ILLUSTRATED BELOWMAY BE USED.TIMBER FRAMEDWALL OR PARTITION Alternative method of installation if external support cannot be provided. FLASH OR SEAL AROUND EXTERNALWALL FRAME OR ARCHITRAVE ENSURE LOUVRESARE ENTIRELYOUTSIDE THE WALL.DRAIN CHUTESTURDY TIMBERFRAMESTEADYING BRACKET(ONE PER SIDE)SOLID TIMBER SUPPORTTIMBER FRAMEDWALL OR PARTITION100mm minimumAIR INAIR INAIR INAIR OUTOPTION A100mm100mmLOUVREFRONT45° BRICK CUT AWAYTO CLEAR LOUVRES45° BRICK CUT AWAYTO CLEAR LOUVRESBRICK WALL BRICK WALL

Installation of the Housing Installations of the unit into the Housing Installations of the unit into the wall Step 1 Remove the air conditioner from it’s packaging and slide the air conditioner out of it’s housing. Step 2 Prepare the hole in the wall so that the bottom of the housing is well supported, the top has minimum clearace and the air inlet louveres have clearance as shown. Holes from the outside through to the cavity should be sealed. The housing should slope down towards the rear by about 5mm to allow water formed during operation to drain. Step 3 Install the housing into the wall and secure. Ensure the foam seals are not damaged. Flash, seal or fill gaps around the inside and outside to provide satisfactory appearance and protection against the weather, insects and rodents. Slide the unit into the housing until it is firmly against the rear of the housing. Care is required to ensure the foam sealing strips on the housing remain in position. Connect the air conditioner to the power and coil excess cord length beneath the air conditioner base or control box. Engage the Chassis Lock into the bottom housing rail and secure to the base with the screw provided. Remove the front panel from i’s carton and plastic bag and fit as per the Operating Instruction. Switch unit on. Check for operation of the unit and check for vibration in the installation. Fit the drain chute to the housing and run a drain line to a suitable location if required.

Install the Air Conditioner in the Case Slide the air conditioner into the case. Reinstall the 2 screws removed earlier on each side of the case. CAUTION: The power cord must be connected to an independent circuit. The green wire must be grounded. Stuff the foam between the top of the unit and the wall to prevent air and insects from getting into the room. Before installing the front grille, pull out the vent control lever located above the unit control knobs, as shown. (for some models) Attach the front grille to the case by inserting the tabs on the grille into the slots on the front of the case. Push the grille in until it snaps into place. When you detach the front grille from the case, push the grille to your right side and pull it toward you. Lift the inlet grill and secure the front grille with a screw(L:10mm). Lower the inlet grille into place.

Power Cord Screw Screw The Foam18 Reversible Inlet Grille Hardware Installation Using the Reversible Inlet Grille (on some models) Opening the front grille from the top of the unit: Disassemble the inlet grille from the front grille. Separatethe hinged part by removing the screws using a flat-headscrewdriver.Turn the inlet grille upside down and insert the hooks intothe lower holes of the front grille.Insert the filter.Opening the front grille from the bottom of the unit:No change is required if you want to remove the filter from thebottom side. (Factory configured)

1Common Problems and Solutions Common Issues

ENGLISH Before calling for service, please review the following list of common problems and solutions. The air conditioner is operating normally when:

• You hear a pinging noise. This is caused by water being picked up by the condenser on rainy days or in highly humid conditions. This feature is designed to help remove moisture in the air and improve cooling efficiency.

• You hear the thermostat click. This is caused by the compressor cycle starting and stopping.

• You see water dripping from the rear of the unit. Water may be collected in the base pan in highly humid conditions or on rainy days. This water overflows and drips from the rear of the unit.

• You hear the fan running while the compressor is silent. This is a normal operational feature. The air conditioner may be operating abnormally when: Problem Possible Causes What To Do ■ The air conditioner is unplugged or not plugged in completely ■ The fuse is blown/circuit breaker is triggered ■ Power failure. ■ Air flow is restricted ■ The THERMOSTAT may not be set cool enough ■ The air filter is dirty. ■ The air conditioner was just turned on. ■ Cold air is escaping. ■ Cooling coils are iced up ■ The cooling coils are iced over.

• Make sure the plug is completely plugged into the outlet

• Check the fuse/circuit breaker box and replace the fuse or reset the breaker

• In the event of a power failure, set the power control to OFF. When the power is restored, wait 3 minutes to restart the air conditioner to prevent the compressor from overloading

• Make sure there are no curtains, blinds, furniture or other obstacles in front of the air conditioner

• Turn the knob to a higher setting. The highest setting provides maximum cooling

• Clean the filter at least every 2 weeks. Refer to the Care and Maintenance section (p.11) of the manual.

• After the air conditioner is turned on, you need to give the air conditioner some time to cool the room.

• Check for open furnace floor resisters and cold air returns.

• CLOSE the air conditioner vent

• See “Ice appears on the air conditioner” below

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