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— answers from the official manualAnswers from the official manual.
Common questions
Common Questions
41 total 1
What is the correct temperature range for the thermostat on the remote control?
The thermostat can be set between 16°C and 30°C (61°F to 81°F). The unit takes an average of 30 minutes to adjust the room temperature by 1°C (1.8°F). Note that when using the On/Off Timer, temperature increases only by 2°C and no longer increases thereafter. (Page 10)
2
How do I use the timer on my LWG07-Series Air Conditioner?
The timer can control operation times within 12 hours. If you set the timer switch at the '1' position, the unit will stop automatically after 1 hour. To operate the unit continuously, set the timer switch to the 'CONSTANT' position, and to stop all operations immediately, set it to the 'STOP' position. (Page 7)
3
Is it safe to clean my air conditioner with water?
Do not use water to clean the inside of the air conditioner, as water exposure can destroy the insulation and may cause electric shock. For the grille and case, use water and mild detergent only, and do not use bleach or harsh abrasives. Always turn off the power and unplug the unit before cleaning. (Pages 4, 11)
4
What is the safe operating temperature range for cooling mode?
In Cooling Mode, the indoor temperature range is between 21°C (minimum) and 32°C (maximum), while the outdoor temperature range is between 21°C (minimum) and 43°C (maximum). Operating outside these temperature ranges is not specified as safe or supported by the unit. (Page 5)
5
Why should I wait 3 minutes before switching back to a cool setting?
When the air conditioner has been performing its cooling operation and is then turned off or set to the fan position, you must wait at least 3 minutes before resetting to the cooling operation again. This precaution also applies after a power failure to prevent the compressor from overloading. Ignoring this warning could cause damage to the unit. (Pages 7, 19)
6
What should I do if ice or frost appears on my air conditioner?
Ice may block airflow and prevent the unit from properly cooling the room. Set the fan to MED or HIGH while setting the thermostat to 1 or 2 until the ice melts. Possible causes include a dirty air filter or cold air escaping into the room. (Page 17)
Show 35 more questions
What temperature range can the thermostat be set to using the remote control?
How do I clean the exterior grille and case of the air conditioner?
What type of batteries does the remote control require, and are rechargeable batteries acceptable?
What safety precautions should I follow when cleaning the air filter?
Why is my LG LWG07-Series air conditioner not cooling the room?
Why do I hear a clicking sound from my LG LWG07-Series air conditioner?
Is it normal to see water dripping from the back of my LG LWG07-Series air conditioner?
How do I set up and install batteries in the remote control of the LG LWG07-Series?
How do I adjust the temperature range on the LG LWG07-Series remote control?
What safety precautions should I follow when cleaning my LG LWG07-Series air conditioner?
How should the LG LWG07-Series air conditioner be installed in terms of positioning and tilt?
How long should I wait before switching the LG LWG07-Series back to cooling mode after turning it off or switching to fan mode?
Why is ice forming on my air conditioner, and how do I fix it?
How should the unit be tilted during installation, and why?
Why is my air conditioner not cooling the room effectively?
How do I change the batteries in the remote control?
What is the correct way to set the thermostat for normal cooling conditions?
Can I clean the inside of my air conditioner with water?
What safety precautions should I follow when using or installing the air conditioner?
How often should I clean the air filter?
What should I do if the air conditioner doesn't cool properly?
What does it mean when I hear a pinging noise from the air conditioner?
How should I set up the drainage system for the air conditioner?
Why is there water dripping from the rear of the unit?
How do I adjust the airflow direction of the air conditioner?
What is the correct temperature range for the thermostat?
How often should I clean the air filter on my LG LWG07-Series air conditioner?
How often should I clean the air filter on my LWG07-Series air conditioner?
What should I do if my air conditioner stops working after a power failure?
Why does my air conditioner make a pinging noise or drip water from the back?
What is the correct thermostat setting for normal cooling?
What should I do after a power failure before restarting the air conditioner?
What should I do if my LG LWG07-Series air conditioner stops working after a power outage?
What is the proper way to clean the air conditioner?
How do I set up the remote control batteries?
Full Manual
20 pages
Page 1
Important
Please read through this manual. It contains valuable information about your air conditioner. This manual may help save time and money by explaining proper product maintenance and preventing improper use.Precautions
Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation. LG is not responsible for any damages caused by misuse of the product. Model: LWG07-Series LWG09-Series LWC07-Series LWC09-Series LWC12-Series LWC14-Series LWC15-Series LWC18-Series LWC21-Series LWC22-Series LWC24-Series LWM14-Series LWM15-Series LWM18-Series LWM21-Series LWM22-Series LWM24-Series LWN18-Series LWN22-Series LWN24-SeriesLg
Window-Type Air ConditionerOwner'S Manual
Lg
Prior to installation, this air-conditioning unit must be submitted for approval by the utility service which provides electricity (EN 61000-3 Norm.)English
Italiano
Español
Français
Deutsch
Page 2
F or Your Records R ead This Manual
Caution
2 Window-Type Air Conditioner Owner’s ManualTable Of Contents
Page 3
Warning
Warning
Warning
Caution
Never Do This Always Do This Precautions Safety Precautions 3English
To prevent injury and property damage, follow these instructions. Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which is indicated by the following symbols. I The following items are classified by these symblos. Plug in the power plug properly. Do not operate or stop the unit by inserting or pulling out the power plug. Do not damage or use an unspecified power cord. Page 4
Caution
Caution
Warning
Warning
4 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. Page 5
Prior to Operation Safety Precautions 5
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 appliances Do not use an extension cord. Do not start/stop operation by plugging/unplugging the power cord. 6 5 4 3 2 1 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). Usage in such a manner could harm such property. 3 2 1 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. 3 2 1 Service For repair and maintenance, contact your authorized service dealer. Page 6
Off
Med
Fan
High
Cool
Low
Fan
Low Cool
Med
Cool
5 4 3 2 1 9 8 7 6 Auto Swing Operation Thermostat On OffOff
Med
Fan
High
Cool
Low
Fan
Low Cool
Med
Cool
5 4 3 2 1 9 8 7 6 On Off Auto Swing Operation Thermostat Operation Thermostat Med Fan Off Low Fan High Cool Med Cool Low Cool 6 7 8 9 5 1 2 3 4 Off On Auto Swing 6 Location and Function of Controls Operating Instructions Controls The controls will look like one of the following. Page 7
English
I 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.I 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.I 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. 7 o Page 8
Thermostat Operation
Fan
Fan
Thermostat Warmer Cooler Heater Operation 8 Controls I 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.I 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.I 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.I 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. o The controls will look like one of the following. Page 9
3 4 1 3 5 5 4 1 2 2 3 4 1 3 5 5 4 1 2 2 1 5 2 4 3 7 1 5 2 4 3 7 1 7 5 6 4 2 3 1 7 5 6 4 2 3 1 7 5 4 2 3 1 7 5 4 2 3 Remote Control Operations Operating Instructions 9
English
The remote control and control panel will look like one of the following pictures.Power
Operation starts when this button is pressed and stops when you press the button again.Operation Mode Selector
Heating function is only available in some models. Select cooling mode to cool the room. Select heating mode to heat the room. Select fan mode for basic ventilating fan operation.On/Off Timer
The 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. 3 2 1 Page 10
10
Fan Speed Selector
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
7 6 5 4 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. 3 2 1 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. Page 11
Close
Vent
Open
Adjusting the Air Flow Direction Operating Instructions Care and Maintenance Care and Maintenance 11English
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. Page 12
Fig. 4 Fig. 3 Fig. 2
Drain
Pan
Drain Hose
Fig. 1Cabinet
Screw
Drain pipe Drain cap 12 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. Let it dry before replacing it. 5 4 3 2 1 Drainage (Optional) 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. 5 4 3 2 1 Page 13
1 3 2 8 7 14 11 12 10 6 9 13 4 5 1 9 7 14 13 10 11 12 4 3 2 8 6 5 Hardware Installation Hardware Installation 13
English
Product FeaturesCaution
This appliance should be installed in accordance with national wiring regulations. This guide acts as a guide to help to explain product features.1. Cabinet
2. Front Grille
3. Air Filter
4. Air Intake (Inlet Grille)
5. Air Discharge
6. Vertical Air Deflector
(Horizontal Louver)
7. Evaporator
8. Horizontal Air Deflector
(Vertical Louver)
9. Control Panel
10. Power Cord
11. Compressor
12. Base Pan
13. Brace
14. Condenser
Page 14
Main Power source Circuit Breaker Use a circuit breaker or time delay fuse. Note : Use 20A circuit breaker for some models (21k ~ 26k Btu/h). 14 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).
Page 15
10~15mm Over 50cm
Heat
Radiation
Fence
Awning
Foam
Cooled
Air
70-150cm Level 1/4 Bubble Shipping screws White styrofoam block Installation Steps Hardware Installation 15English
Select the Best Location Measure the space for installation to assure a good fit. The air conditioner must be installed firmly into place to prevent vibration and noise. Avoid exposure to direct sunlight. Remove all obstacles from the rear of the unit. There must be at least 50cm (20in.) of cleared space around the rear of the unit. Obstacles restricting the airflow may reduce the cooling efficiency of the unit. The unit should be installed with a slight tilt towards the outside (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 air discharge. 4 3 2 1 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) 4 3 2 1 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 in reverse mode (in Reverse Cycle models only). To drain the excess water, remove the drain cap from the back of the unit and secure the drainpipe as follows: Page 16
Note: Unit May Be Supported By A
Solid Frame From Below Or
By A Hanger From A Solid
Overhead Support.
Flash Or Seal Around External
Wall Frame Or Architrave
Sturdy Timber
Frame All Round
Unit
Drain Chute
External Support
Frame At Balance
Point Of Rac
Preferred method of installation into a timber framed wall, partition or window.Alternatively, Brackets
As Illustrated Below
May Be Used.
Timber Framed
Wall Or Partition
Alternative method of installation if external support cannot be provided.Flash Or Seal Around External
Wall Frame Or Architrave
Ensure Louvres
Are Entirely
Outside The Wall.
Drain Chute
Sturdy Timber
Frame
Steadying Bracket
(One Per Side)
Solid Timber Support
Timber Framed
Wall Or Partition
100mm minimumAir In
Air In
Air In
Air Out
Option A
100mm 100mmLouvre
Front
45° Brick Cut Away
To Clear Louvres
45° Brick Cut Away
To Clear Louvres
Brick
Wall
Brick
Wall
Air In
Air In
Air Out
Top
View
Option B
16 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. 6 5 4 3 2 1 Page 17
English
17 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. 5 4 3 2 1 Power Cord Screw Screw The Foam Page 18
18 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. Separate the hinged part by removing the screws using a flat-head screwdriver. Turn the inlet grille upside down and insert the hooks into the 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 the bottom side. (Factory configured) 3 2 1
Page 19
Common Problems and Solutions Common Issues 19
English
Before calling for service, please review the following list of common problems and solutions. The air conditioner is operating normally when: Page 21
P/No.: 3828A20141B Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.