LG VM121H6 Owner's Manual

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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 : WALL MOUNTED

MODELS
Indoor Unit	Outdoor Unit
VM122H6 NJM0(USNW122J3W1)	VM122H6 USM0(USUW122J3W1)
VM122C6 NJM0(USNQ122J3W1)	VM122C6 USM0(USUQ122J3W1)
VM121H6 NJM0(USNW121J3W1)	VM121H6 USM0(USUW121J3W1)
VM121C6 NJM0(USNQ121J3W1)	VM121C6 USM0(USUQ121J3W1)
VM182H6 NKM0(USNW182K3W1)	VM182H6 USM0(USUW182K3W1)
VM182C6 NKM0(USNQ182K3W1)	VM182C6 USM0(USUQ182K3W1)
VM182H6 NKM1(USNW182K3W2)	VM182H6 USM1(USUW182K3W2)
VM182C6 NKM1(USNQ182K3W2)	VM182C6 USM1(USUQ182K3W2)
VM242H6 NKM0(USNW242K3W1)	VM242H6 USM0(USUW242K3W1)
VM242C6 NKM0(USNQ242K3W1)	VM242C6 USM0(USUQ242K3W1)

www.lg.com

P/NO : MFL70382901

Copyright © 2017 - 2019 LG Electronics Inc. All Rights Reserved

Rev.02_071919

TABLE OF CONTENTS

This manual is produced for a group of products and may contain images or content different from the model you purchased.

This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS .......................................	3
IMPORTANT SAFETY INSTRUCTIONS.................................................	4
OPERATION .............................................................	8
Notes for Operation .................................................................................	8
Parts and Functions.................................................................................	8
Wireless Remote Control.........................................................................	9
Restarting the Air Conditioner Automatically .........................................	12
Using the Mode Function.......................................................................	12
Using the Jet Mode Function.................................................................	14
Using the Fan Speed Function..............................................................	14
Using the Air Flow Direction Function....................................................	14
Setting the On/Off Timer........................................................................	15
Using the Sleep Function(Optional).......................................................	16
Using the Simple Timer Function(Optional)...........................................	16
Using the Energy Display Function(Optional)........................................	16
Using the Light Off Function(Optional) ..................................................	17
Using the Comfort Air Function(Optional)..............................................	17
Using the Energy Saving Function(Optional) ........................................	17
Using the Energy Control Function(Optional)........................................	17
Using the Comfort Sleep Function(Optional).........................................	18
Using Special Functions........................................................................	18
Smart Appliance Connectivity................................................................	20
MAINTENANCE......................................................	21
Clean the Air Filter.................................................................................	22
Clean the Micro Dust, Triple and Allergy Filter (Optional) .....................	23
TROUBLESHOOTING ...........................................	24

SAFETY INSTRUCTIONS

The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance.

The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.

This symbol is displayed to indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.

WARNING

This indicates that the failure to follow the instructions can cause serious injury or death.

CAUTION

This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

WARNING

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

•Before accessing the terminals, all power circuits must be disconnected.

•Fixed installations will incorporate disconnect means in accordance with installation rules.

•The appliance must be installed in accordance with national regulations for electrical installations.

Children in the Household

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.

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3

IMPORTANT SAFETY INSTRUCTIONS

WARNING

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

Installation

•Do not install the air conditioner on an unstable surface or in a place where there is danger of it falling.

•Contact an authorized service center when installing or relocating the air conditioner.

•Install the panel and the cover of the control box safely.

•	quids or gases

such as gasoline, propane, paint thinner, etc., are stored.

•Make sure that the pipe and the power cable connecting the indoor and outdoor units are not pulled too tight when installing the air conditioner.

•Use standard circuit breaker and fuse that conform to the rating of the air conditioner.

• refrigerant.

• air; using

•The indoor/outdoor wiring connections must be secured tightly, and the cable should be routed properly so that there is no force pulling the cable from the connection terminals. Improper or loose connections can cause heat generation

•Install dedicated electric outlet and circuit breaker before using the air conditioner.

•Do not connect the ground wire to a gas pipe, a lightning rod, or a telephone ground wire.

Operation

•Be sure to use only those parts listed in the service parts list. Never attempt to modify the equipment.

•Make sure that children do not climb on or hit the outdoor unit.

•Dispose of the batteries in a place where there is no danger of

•

•Cut off the power supply if there is any noise, smell, or smoke coming from the air conditioner.

•	thinner near

the air conditioner.

4

• Contact an authorized service center when the air conditioner is submerged by		<![if ! IE]> <![endif]>ENGLISH
• Do not use the air conditioner for an extended period time in a small place
	without proper ventilation.
• In the event of a gas leak (such as Freon, propane gas, LP gas, etc.) ventilate
• To clean the interior, contact an authorized service center or dealer. Using harsh
	detergents may cause corrosion or damage to the unit.
•	heating appliance

such as a heater are used simultaneously.

•

•Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operating.

•Make sure that the power cable is neither dirty, loose, nor broken.

•Never touch, operate, or repair the air conditioner with wet hands.

•Do not place any objects on the power cable.

•Do not place a heater or other heating appliances near the power cable.

•Do not modify or extend the power cable. Scratches or peeling insulation on the

replaced.

•Cut off the power supply immediately in the event of a blackout or a thunderstorm.

Maintenance

•Do not clean the appliance by spraying water directly onto the product.

•Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops.

Technical Safety

•Installation or repairs made by unauthorized persons can pose hazards to you and others.

•The information contained in the manual is intended for use by

service technician who is familiar with the safety procedures and equipped with the proper tools and test instruments.

•Failure to read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

•The appliance shall be installed in accordance with national wiring regulations.

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

•This appliance must be properly grounded to minimize risk of electric shock.

•Do not cut or remove the grounding prong from the power plug.

5

•Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, uninsulated, and the wall receptacle is grounded through house wiring.

•If you have any doubt whether the air conditioner is properly grounded, have the

•The refrigerant and insulation blowing gas used in the appliance require special disposal procedures. Consult a service agent or a similarly qua

before disposing of them.

•If the supply cord is damaged, it must be replaced by the manufacturer or its hazard.

CAUTION

To reduce the risk of minor injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following:

Installation

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

•Install the drain hose properly for the smooth drainage of water condensation.

•Exercise caution when unpacking or installing the air conditioner.

•Do not touch the leaking refrigerant during installation or repair.

•Transport the air conditioner with two or more people or use a forklift.

•Install the outdoor unit such that it is protected from direct sunlight. Do not place the indoor unit in a place where it is directly exposed to sunlight via the windows.

•Safely dispose of packing materials such as screws, nails or batteries using proper packaging after installation or repair.

•Install the air conditioner in a place where the noise from the outdoor unit or the exhaust fumes will not inconvenience the neighbors. Failure to do so may result

Operation

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

• conditioner.

•Be sure to check if there is a refrigerant leak after installing or repairing the air conditioner.

•Do not place any object on the air conditioner.

6

• Never mix different types of batteries, or old and new batteries for the remote		<![if ! IE]> <![endif]>ENGLISH
	control.
• Do not let the air conditioner run for a long time when humidity is very high or
	when a door or a window has been left open.
•	ttery. If your clothes

•Do not expose people, animals, or plants to the cold or hot wind from the air conditioner for extended periods of time.

•

thoroughly and consult a doctor.

•Do not drink the water drained from the air conditioner.

•Do not use the product for special purposes, such as preserving foods, works of art, and etc. It is an air conditioner for consumer purposes, not a precision refrigeration system. There is risk of damage or loss of property.

•Do not recharge or disassemble the batteries.

Maintenance

•Never touch the metal parts of the air conditioner when removin

•Use a sturdy stool or ladder when cleaning, maintaining, or repairing the air conditioner at a height.

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

7

OPERATION

Notes for Operation

Suggestion for Energy Saving

•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.

•

.

•Speed up the fan to cool or warm indoor air quickly, within a short period of time.

•Open windows regularly for ventilation. The indoor air quality may deteriorate if the air conditioner is used for long durations.

•

weaken the cooling / dehumidifying functions.

Parts and Functions

Indoor Unit Outdoor Unit

1	Air Filter					1											Air Intake Vents
2	Air Intake					2											Air Outlet Vents

3Front Cover

4On/Off Button

5

6

7 Air Outlet

NOTE

•The number and location of operation lamps may vary according to the model of the air conditioner.

•The feature may be changed according to the type of model.

8

Wireless Remote Control

Inserting Batteries

If the display screen of the remote control begins to fade, replace the batteries. Insert AAA (1.5 V) batteries before using the remote control.

1	Remove the battery cover.
2	Insert the new batteries and make sure that the
	+ and - terminals of the batteries are installed

correctly.

Installing the Remote Control Holder

To protect the remote control, install the holder where there is no direct sunlight.

1	Choose a safe and easily accessible location.
2	screwdriver.

Operating method

Point the remote control towards the signal receiver at the right side of the air conditioner to operate it.

NOTE

•The remote control may operate other electronic devices if it is directed towards them. Make sure to point the remote control towards the air conditioner signal receiver.

•For proper operation, use a soft cloth to clean the signal transmitter and receiver.

•In case of a function not provided in the product, no buzzer sound occurs from the product when a button for such function on the remote control is

pressed except for Air Flow Direction(), Energy Display(kW [3 s]).

Setting the Current Time				<![if ! IE]> <![endif]>ENGLISH
1	display screen.
	Insert batteries.
	• The icon below blinks at the bottom of the
2	Press	or	button to select the minutes.
3	Press SET/CANCEL

NOTE

•The On/Off Timer is available after setting the current time.

Using the °C/°F Conversion Function(Optional)

This function changes unit between °C and °F.

• Press and hold SWING button about 5 seconds.

↔ [5s]

Operating the Air Conditioner

Without the Remote Control

You can use the ON/OFF button of the indoor unit to operate the air conditioner when the remote control is unavailable.

1	Open the front cover (Type1) or horizontal
	vane(Type2).
2	Press the ON/OFF button.

Type1

ON/OFF

Type2

ON/OFF

NOTE

•The stepping motor may be broken, if the horizontal vane opens rapidly.

•The fan speed is set to high.

•The feature may be changed according to the type of model.

•The temperature cannot be altered when using this emergency On/Off button.

•For cooling-only models, the temperature is set to 22 °C.

•For cooling & heating models, the temperature is

set from 22 °C to 24 °C.	9

Using Wireless Remote Control

You can operate the air conditioner more conveniently with the remote control.

*	*
*

	Button	Display	Description
		Screen
2		-	To turn on/off the air conditioner.
			To adjust the desired room
			temperature in cooling, heating or
			auto changeover mode.
			To select the cooling mode.
			To select the heating mode.
	MODE
1			To select the fan mode.
			To select the auto changeover/auto
			operation mode.
	JET		To change room temperature quickly.
	MODE
	FAN		To adjust the fan speed.
RESET	SPEED
			vertically or horizontally.
			To turn on/off air conditioner
			automatically at desired time.
	SET/	-	To set/cancel the special functions
	CANCEL		and timer.
		-	To cancel the timer settings.
		-	To adjust time.
	*LIGHT	-	To set the brightness of the display
	OFF		on the indoor unit.
	ROOM		To display the room temperature.
	TEMP
	°C↔°F[5 s]		To change unit between °C and °F.
	*ENERGY		To minimize power consumption.
	SAVING

NOTE

• * buttons may be changed according to the type of model.

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*	*
*

2

1

RESET

	Button	Display	Description	<![if ! IE]> <![endif]>ENGLISH
		Screen
	*COMFORT
	AIR
	kW[3 s]	-	To set whether or not to display
			information regarding energy.
	*ENERGY		To bring the effect of the power
	CTRL		saving.
	*COMFORT		To make the comfortable sleep
	SLEEP		environment.
	DIAGNOSIS	-	To conveniently check maintenance
	[5 s]		information of a product.
			To purify the air by removing particles
			that enters the indoor unit.
			To reduce noise from outdoor units.
			To keep your skin moisturized by
			generating ion clusters.
			To lower indoor humidity quickly.
			To maintain a minimum room
			temperature and prevent objects in
			the room from freezing.
			To fan away a mosquito.
			To remove moisture generated inside
			the indoor unit.
			To make the comfortable sleep
			environment.
	RESET	-	To Initialize the remote control
			settings.

NOTE

•Some functions may not be supported, depending on the model.

•* buttons may be changed according to the type of model.

11

Restarting the Air Conditioner

Automatically

When the air conditioner is turned on again after a power failure, this function restores the previous settings.

Disabling Auto Restart

1	Open the front cover (Type1) or horizontal
	vane(Type2).
2	Press the ON/OFF button and hold it for 6

seconds, then The unit will beep twice and the lamp will blink twice 4 times.

• To re-enable the function, press the ON/OFF button and hold it for 6 seconds. The unit will beep twice and the lamp will blink 4 times.

Using the Mode Function

This function allows you to select the desired function.

Cooling Only Model

Cooling Mode

Auto Operation(AI) Mode

Fan Mode

Type1

ON/OFF

Type2

ON/OFF

NOTE

•The feature may be changed according to the type of model.

•If you press and hold the ON/OFF button for 3 – 5 seconds, instead of 6 seconds, the unit will switch to the test operation. In the test operation, the unit blows out strong cooling air for 18 minutes and then returns to factory default settings.

Cooling & Heating Model

Cooling Mode

Auto Changeover Mode

Heating Mode

Fan Mode

Cooling Mode

1	Turn the appliance on.
2	Press MODE button repeatedly to select the
	Cooling Mode.
	•	is displayed on the display screen.
3	Press	or	button to set the desired

temperature.

12

Heating Mode

1	Turn the appliance on.
2	Press MODE button repeatedly to select the
	Heating Mode.
	•	is displayed on the display screen.
3	Press	or	button to set the desired

temperature.

This mode removes excess moisture from a highly humid environment or during the rainy season,

in order to prevent molding from setting in. This mode adjusts the room temperature and the fan speed automatically to maintain the optimal level of humidity.

1	Turn the appliance on.
2	Press MODE button repeatedly to select the
	•	is displayed on the display screen.

NOTE

•In this mode you cannot adjust the room temperature, it is adjusted automatically.

•The room temperature is not displayed on the display screen.

•In the dehumidification mode, compressor and indoor fan will not operate when the room temperature is below 24 °C

Fan Mode

This mode only circulates the indoor air without changing the room temperature.

1	Turn the appliance on.
2	Press MODE button repeatedly to select the Fan
	Mode.
	•	is displayed on the display screen.
3	Press FAN SPEED button to adjust the fan
	speed.

	Auto Changeover Mode			<![if ! IE]> <![endif]>ENGLISH
	Cooling & Heating Model
	This mode changes the mode automatically to
	maintain the set temperature at ±2 °C.
	1	Turn the appliance on.
	2	Press MODE button repeatedly to select the Auto
		Changeover Mode.
		•	is displayed on the display screen.
	3	Press	or button to set the desired
		temperature.
	4	Press FAN SPEED button to adjust the fan
		speed.

Cooling Only Model

This mode automatically sets the fan speed and temperature depending on the room temperature.

1	Turn the appliance on.
2	Press MODE button repeatedly to select the Auto
	Operation.
	•	is displayed on the display screen.
3	Press	or	button to select the desired
	operation code if the temperature is higher or

lower than the desired temperature.

Code	Description
2	Cool
1	Cool slightly
0	Maintain room temperature
-1	Heat slightly
-2	Heat

NOTE

• In this mode, you cannot adjust the fan speed, but

13

Using the Jet Mode Function

Changing Room Temperature Quickly

This function allows you to cool indoor air quickly during the summer or warm it quickly during winter.

•Cooling & Heating model : The Jet Mode function is available with Cooling, Heating and

•Cooling Only model : The Jet Mode function is

1	Turn the appliance on.
2	Press MODE button repeatedly to select the
	desired mode.
3	Press JET MODE button.
	•	is displayed on the display screen.

NOTE

•Jet Heating Mode is not available on some models.

•In Jet Cooling Mode, strong air blows out at temperature of 18 °C for 30 minutes.

•In Jet Heating Mode, strong air blows out at temperature of 30 °C for 30 minutes.

•This function may operate differently from the remote control display.

Using the Fan Speed

Function

Adjusting the Fan Speed

•Press FAN SPEED button repeatedly to adjust the fan speed.

Display Screen

Speed

High

Medium - High

Medium

Medium - Low

Low

-Natural Wind

NOTE

•The fan speed of natural air adjusts automatically.

→ →

•The fan speed icons are displayed on some indoor units.

→ → → →

•Indoor unit display is displayed only 5 seconds and return to the setting temperature on some models.

Using the Air Flow Direction

Function

vertically (horizontally).

•Press () button repeatedly and select the desired direction.

−Select () to adjust the direction of the air

NOTE

•

be supported, depending on the model.

•

product failure.

•If you restart the air conditioner, it starts to operate

the remote control. When this occurs, press or

again.

•This function may operate differently from the remote control display.

14

Setting the On/Off Timer

This function sets the air conditioner to turn on/off automatically at desired time.

Setting the On Timer

1 Press button repeatedly.

•The icon below blinks at the bottom of the display screen.

2	Press	or	button to select the minutes.
3	Press SET/CANCEL

•After setting the timer, current time and icon are displayed on the display screen indicating that the desired time is set.

Canceling the On Timer

1 Press button repeatedly.

•The icon below blinks at the bottom of the display screen.

2 Press SET/CANCEL button to cancel the setting.

	Setting the Off Timer		<![if ! IE]> <![endif]>ENGLISH
	1 Press	button repeatedly.

• The icon below blinks at the bottom of the display screen.

2	Press	or	button to select the minutes.
3	Press SET/CANCEL

• After setting the timer, current time and icon are displayed on the display screen indicating that the desired time is set.

NOTE

•This function is disabled when you set Simple Timer.

Canceling the Off Timer

1 Press button repeatedly.

•The icon below blinks at the bottom of the display screen.

2 Press SET/CANCEL button to cancel the setting.

Canceling the Timer Setting

• Press button to cancel all timer settings.

15

Using the Sleep

Function(Optional)

This function turns off the air conditioner automatically when you go to sleep.

1	Turn the appliance on.
2	Press	button repeatedly.

• The icon below blinks at the bottom of the display screen.

3	Press	or	button to select the hour (up
	to 7 hours).
4	Press SET/CANCEL
	• is displayed on the display screen.

NOTE

• is displayed on some indoor units.

•Indoor unit display is displayed from 1H to 7H, which is displayed only 5 seconds and then return to the setting temperature.

•

temperature increases by 1 °C after 30 minutes and additional 1 °C after another 30 minutes for a more comfortable sleep.

•The temperature increases up to 2 °C from the preset temperature.

•Although the remark for fan speed on the display screen may be changed, the fan speed is adjusted automatically.

Using the Simple Timer

Function(Optional)

This function turns off the air conditioner automatically when you go to sleep.

1 Turn the appliance on.

2 Press button repeatedly.

•The icon below blinks at the bottom of the display screen.

3 Press or button to select the hour (up to 7 hours).

4 Press SET/CANCEL

• is displayed on the display screen.

NOTE

• This function is disabled when you set Off Timer.

Using the Energy Display

Function(Optional)

This function displays the amount of electricity generated on the indoor display as the product operates.

Display the Current Energy Usage

1	Turn the appliance on.
2	Press kW [3 s] button and hold it about 3 seconds.
	• The instantaneous power consumption(	or
	kWhkW ) is displayed for a while on some indoor
	units.

16

Display the Cumulative Energy

Usage(Optional)

1	Turn the appliance on.
2	Press	kW [3 s] button and hold it about 3 seconds
	twice.

• The cumulative power consumption(kWkWh) is displayed for a while on some indoor units.

NOTE

•It is not displayed on the wireless remote control.

•kW refers to instantaneous power consumption.

•kWh refers to cumulative power consumption.

•If it is more than 99 kWh, which is the range of expression, maintain it as 99 kWh.

•Power off resets its value.

•Display wattage under 10 kW with 0.1 kW(h) unit, and display one over 10 kW with 1 kW(h) unit.

•The actual power may differ from the power displayed.

Using the Light Off

Function(Optional)

Display Screen Brightness

You can set the brightness of the indoor unit display screen.

• Press LIGHT OFF button.

Using the Comfort Air

Function(Optional)

Comfort Vane Operation

This function conveniently sets the vane to a preset

directly onto the occupants in the room. 1 Turn the appliance on.

2	Press COMFORT AIR button repeatedly and					<![if ! IE]> <![endif]>ENGLISH
	select the desired direction.
	•		or		is displayed on the display screen.
NOTE
•		or			is displayed on some indoor units.

•This function is disabled when you press MODE or

JET MODE button.

•This function is disabled and auto swing of vertical direction is set up when you press SWING button.

↔ [5s]

•When this function is off, the horizontal vane operates automatically depending on the set mode.

Using the Energy Saving

Function(Optional)

This function minimizes power consumption during Cooling and increases the set temperature to the optimal level for a more comfortable environment. The temperature automatically settles at 22 °C,

if room ambient temperature is below 22 °C. The temperature remains constant if it is above 22 °C.

1	Turn the appliance on.
2	Press MODE button repeatedly to select the
	Cooling Mode.
3	Press ENERGY SAVING button.
	• is displayed on the display screen.

Using the Energy Control

Function(Optional)

1	Turn the appliance on.
2	Press ENERGY CTRL button.
	• Press ENERGY CTRL button repeatedly to

select each step.

17