LG AMNQ12GL2A0 Owner’s Manual

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OWNER’S MANUAL

AIR

CONDITIONER

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

CEILING CONCEALED DUCT

Original instruction

*MFL67798205*	www.lg.com
Rev. : 00(06T18)	Copyright © 2016 - 2018 LG Electronics Inc. All Rights Reserved.

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2	TIPS FOR SAVING ENERGY

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

•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.

•Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

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

•Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.

•Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS	3

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product

! WARNING

It can result in serious injury or death when the directions are ignored

! CAUTION

It can result in minor injury or product damage when the directions are ignored

This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

!WARNING

•Always ground the product. There is a risk of electric shock.

•Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse. There is risk of fire or electric shock .

•Do not use a multi consent. Always use this appliance on a dedicated cicuit and breaker. Otherwise it can cause electric shock or fire.

•For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself. There is risk of fire or electric shock.

•Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire. There is risk of fire or electric shock.

•Install the panel and the cover of control box securely. There is risk of fire or electric shock due to dust , water etc.

•Use the correctly rated breaker or fuse. There is risk of fire or electric shock.

•Do not modify or extend the power cable. If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced. There is risk of fire or electric shock.

•For installation, removal or reinstall , always contact the dealer or an Authorized Service Center. There is risk of fire, electric shock, explosion, or injury.

•Do not install the product on a defective installation stand. Be sure that the installation area does not deteriorate with age. It may cause product to fall.

•Never install the outdoor unit on a moving base or a place from where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.

•When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again. There is risk of fire or eletric shock.

•Be sure to check the refrigerant to the used. Please read the label on the product. Incorrect refrigerant used can prevent the normal operation of the unit.

•Don't use a power cord, a plug or a loose socket which is damaged. Otherwise it may cause a fire or electrical shock.

•Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out. There is risk of electric shock or fire.

•Do not place a heater or other heating appliances near the power cable. There is risk of fire and electric shock.

•Do not allow water to run into electric parts. Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.

•Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.

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	4	IMPORTANT SAFETY INSTRUCTIONS
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		• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed prop-
		erly so that there is no force pulling the cable from the connection terminals. Improper or loose
		• Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after in-
		stallation or svc and then tear away and thraw away the plastic packaging bags. Children may play
		with them and cause injury.
		• Make sure to check that the power cable plug is not dirty, loose or broken and then only insert
		the plug completely. Dirty, loose or broken power plug can cause electric shock or fire.
		• In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components.
		Be sure to discharge the capacitor completely before conducting the repair work.
		An charged capacitor can cause electrical shock.
		• When installing the unit, use the installation kit provided with the product. Otherwise the unit may
		fall and cause severe injury.
		• Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the
		equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation
		or fire.
		• Do not use the product in a tightly closed space for a long time. Perform ventilation regularly. Oxy-
		gen deficiency could occur and hence harm your health.
		• Do not open the front grille of the product during operation. (Do not touch the electrostatic filter, if
		the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.
		• If strange sounds, smell or smoke comes from product.Immediately turn the breaker off or discon-
		nect the power supply cable. There is risk of electric shock or fire.
		• Ventilate the product room from time to time when operating it together with a stove, or heating
		element etc. Oxygen deficiency can occur and hence harm your health.
		• Turn the main power off and unplug the unit when cleaning or repairing the product. There is risk
		of electric shock.
		• When the product is not to be used for a long time, disconnect the power supply plug or turn off
		the breaker. There is risk of product damage or failure, or unintended operation.
		• Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit. This
		could result in personal injury and product damage.
		• Take care to ensure that power cable could not be pulled out or damaged during operation. There
		is risk of fire or electric shock.
		• Do not place ANYTHING on the power cable. There is risk of fire or electric shock.
		• Do not plug or unplug the power supply plug to turn the unit ON/OFF. There is risk of fire or elec-
		tric shock.
		• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the
		product on. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.
		• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control
		box cover are removed or opened. Otherwise, it may cause fire, electric shock, explosion or death.
		• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress
		air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion. There is
		the risk of death, injury, fire or explosion.

! CAUTION

• Two or more people must lift and transport the product. Avoid personal injury.

• Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product.

• Install the drain hose to ensure that the condensed water is drained away properly. A bad connection may cause water leakage.

• Keep level even when installing the product. To avoid vibration or noise.

• Do not install the product where the noise or hot air from the outdoor unit could damage or disturb

IMPORTANT SAFETY INSTRUCTIONS	5

the neighborhoods. It may cause a problem for your neighbors and hence dispute.

•Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product.

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

•Do not block the inlet or outlet of air flow. It may cause product failure.

•Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

•Do not touch the metal parts of the product when removing the air filter. There is risk of personal injury.

•Do not step on or put anyting on the product. (outdoor units) There is risk of personal injury and failure of product.

•Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.

•Do not insert hands or other objects through the air inlet or outlet while the product is operating. There are sharp and moving parts that could cause personal injury.

•Be cautious when unpacking and installing the product. Sharp edges could cause injury.

•If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas. The refrigernat gas can cause frostbite (cold burn)

•Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.

•Do not mix air or gas other than the specified refrigerant used in the system. If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

•If the refrigerant gas leaks during the installation, ventilate the area immediately. Otherwise it can be harmfull for your health.

•Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

•Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or product failure.

•Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire. They may burn or explode.

•If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

•If you eat the liquid from the batteries, brush your teeth and see doctor.

Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazard.

•Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. Moisture may condense and wet or damage furniture.

•Do not expose your skin or kids or plants to the cool or hot air draft. This could harm to your health.

•Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.

•Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height. Be careful and avoid personal injury.

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

•Young children should be supervised to ensure that they do not play with the air conditioner.

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6	TABLE OF CONTENTS

TABLE OF CONTENTS

2TIPS FOR SAVING ENERGY

3IMPORTANT SAFETY INSTRUCTIONS

7	BEFORE USE
7	Preparing for operation
7	Usage
7	Cleaning and maintenance

7Service

8PRODUCT INTRODUCTION

8Name and function of parts (CEILING CONCEALED DUCT)

9What to do before operation

10Wired Remote Controller

11OPERATING INSTRUCTIONS

11Standard Operation - Standard Cooling

12Standard Operation - Power Cooling

12Standard Operation - Heating Mode

13Standard Operation - Dehumidification Mode

13Auto Changeover Mode

14Standard Operation - Fan Mode

15Standard Operation - Auto Operation Mode

16Standard Operation - Airflow Setting

17Standard Operation - Temperature Setting/Room Temperature Check

18Function Setting - Child Lock

19Function Setting - Change Temp

20Function Setting - Filter Sign Clear

21Function Setting - Vane Angle Control

22Function Setting - Changing Current Time

24Programming - Simple Reservation

25Programming : Weekly Reservation

27Programming - Sleep Reservation

28Programming - ON Reservation

30Programming - OFF Reservation

32Programming : Holiday Reservation

33 MAINTENANCE AND SERVICE

33Indoor Unit

34Operation Tips!

34When the air conditioner is not going....

35Troubleshooting Tips! Save time and money!

35 Call the service immediately in the following situations

BEFORE USE	7

BEFORE USE

Preparing for operation

•Contact an installation specialist for installation.

•Use a dedicated circuit.

Usage

•Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time.

•Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or other heating devices.

•Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices, food, pets, plants, and art objects). Such usage could damage the items.

Cleaning and maintenance

•Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling sharp metal edges.

•Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leading to possible electric shock.

•When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit.

Service

For repair and maintenance, contact your authorized service dealer.

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8 PRODUCT INTRODUCTION

PRODUCT INTRODUCTION

Name and function of parts (CELING CONCEALED DUCT)

	1		1: Indoor unit
	4Air intake 6	7
			2: Outdoor unit
			3: Remote controller
			4: Inlet air
	Remote		5: Discharge air
	Controller
	3		6: Refrigerant piping, connection electric wire
			7: Drain pipe
			8: Ground wire
		8	wire to ground outdoor unit to prevent electrical
			shocks.

PRODUCT INTRODUCTION 9

What to do before operation

If your installation has a customized control system, ask your LG dealer for

A	the operation that corresponds to your system.

1 2

1: Unit with remote controller

2: Unit without remote controller (when used as simultaneous operation)

B	1
1

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10 PRODUCT INTRODUCTION

Wired Remote Controller

	1
	8
	7	14
	9
		2
	10
		4
	11
	12	5
	13	6
	15	3

Please attach the inform label inside of the door. Please choose proper language depend on your country.

1 OPERATION INDICATION SCREEN

2 SET TEMPERATURE Button

3 FAN SPEED Button

4 ON/OFF Button

5 OPRATION MODE SELECTION Button

6WIRELESS REMOTE CONTROLLER RECEIVER

•Some products don't receive the wireless signals.

7 AIR FLOW Button

8 SUBFUNCTION Button

9 FUNCTION SETTING Button

10VENTILATION Button

11RESERVATION

12UP,DOWN,LEFT,RIGHT Button

•To check the indoor temperature, press

button.

13ROOM TEMPERATURE Button

14SETTING/CANCEL Button

15EXIT Button

*Some functions may not be operated and displayed depending on the product type.

!NOTE

•Display temperature can be different from actual room temperature if the remote controller is installed at the place where sun-rays are falling directly or the place nearby heat source.

•The actual product can be different from above contents depending upon model type.

•When using simultaneous operation system, whenever press remote controller button, system will approximately operate after 1~2 minutes.

OPERATING INSTRUCTIONS	11

OPERATING INSTRUCTIONS

Standard Operation - Standard Cooling

It cools the room by comfortable and clean wind.

1 Pressindoor. button to turn on the

2 Press button to select Cooling operation mode.

3 Adjust the desired temperature by pressing buttons. Press button to check the Room temperature.

When setting the desired temperature higher than room temperature, only ventilation wind is blow out instead of cooling wind.

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12 OPERATING INSTRUCTIONS

Standard Operation - Power Cooling

It makes the room cool using pleasant and fresh air quickly.

1 indoor.Press	button to trun on the
Press	button to select
2 cooling operation mode.
Press	button continuously
3 until 'Po' displayed.

	What is Power Cooling?
	• Desired temperature: Po (actually 18 °C)
	• Wind flow: power wind	It make room temperature
		} drop fast by running
	• Wind direction: fix to air-cooling position

Partial product has no power air-cooling function.

Standard Operation - Heating Mode

It supplies warm wind to the indoor.

1 indoorPress		button to turn on the
2	Press	button to select
	Heating mode.

(To check the indoor temperature, press the room temperature button.

3 Adjust the desired temperature by pressing buttons.

When setting the desired temperature lower than room temperature, there is only ventilation wind.

•Heating drive only operates at the cooling and heating model.

•Heating doesn't operate at cooling exclusive model.

OPERATING INSTRUCTIONS	13

Standard Operation - Dehumidification Mode

It removes humidity while air-cooling weakly.

1 indoor.Press		button to turn on the
2	Press	button to select
	Dehumidification mode.
	The temperature setting can not be
	adjusted during operation this mode
	Press the	button to select
3 airflow rate feeble			weak
	medium	strong	automatic.
	(The initial wind powerfulness of
	humidity removal drive is 'weak'.)

•In rainy season or high humidity climate, it is possible to operate simultaneously dehumidifier and cooling mode to remove humidity effectively.

•The menu item of wind powerfulness might not be partially selected according to the product.

Auto Changeover Mode

1 Press button to turn on the indoor.

2 Press button to select Auto Changeover Mode.

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3 The setting temperature as the right side picture can be set in both cooling/ heating model.

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14 OPERATING INSTRUCTIONS

Standard Operation - Fan Mode

It blows the air as it is in the indoor, not the cold wind.

1 Pressindoor. button to turn on the

2 PressMode. button to select Fan

3 Every time pressing button, you can select wind flow in order of

feeble →weak → medium → strong → automatic. When running ventilation,

compressor of AHU doesn't work.

•Ventilation drive does not release cool wind but general fan

•Because it releases the wind that has no temperature difference from the room, it functions to circulate the inside air.

•The menu item of wind powerfulness might not be partially selected according to the product.

OPERATING INSTRUCTIONS	15

Standard Operation - Auto Operation Mode

1 Pressindoor. button to turn on the

2 Press button to select Artificial intelligence Mode.

3 You can adjust the temperature as the picture on the right for cooling and heating model.

	For the case of
	4 cooling exclusive,
	as the picture on
	the right, you can	When cold
	adjust the
		When cool
	temperature from
		When appropriate
	hot to cold, from
		When warm
	"-2" to "2" based
		When hot
	on "00".

During operating Auto Operation mode:

•We can use the FAN SPEED button

•We can change manually to other operation mode.

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16 OPERATING INSTRUCTIONS

Standard Operation - Airflow Setting

Wind powerfulness : You can simply adjust desired wind powerfulness.

1 Please setup desired wind powerfulness by wind powerfulness button.

• Every time you press wind

powerfulness, you can select the wind flow in order of ‘feeble →weak →weak medium → medium → medium strong → strong → power → automatic’.

•The menu item might not be partially selected according to product function.

Wind direction : You can simply adjust desired wind direction.

Please set desired wind direction
1 by pressing	button.

You can select wind direction of (comfortable wind → Up/Down and Right/Left → Right/Left → Up/Down) by pressing button.

Partial item of wind directions might not be selected according to product function.

*Some functions may not be operated and displayed depending on the product type.

OPERATING INSTRUCTIONS 17

Standard Operation - Temperature Setting/Room Temperature Check

Temperature Setting

1 We can simply adjust the desired temperature.

• Press the buttons to adjust the desired temperature.

: Increase 1 ˚C or 2 ˚F per one time

pressing

: Decrease 1 ˚C or 2 ˚F per one time pressing

• Room temp: Indicate the current room temperature.

• Set temp: Indicate the temperature that user want to set.

* Depend on what kind of controller, the desired temperature can be adjusted at 0.5 ˚C or 1 ˚F.

Cooling operation:

- The cooling mode doesn't work if desired temperature is higher than room temperature Please lower the desired temperature.

Heating operation:

- The heating mode doesn't work if desired tempera ture is lower than room temperature Please increase the desired temperature.

Room Temperature Check

1 Whenever press button, the room temperature will displayed within 5 seconds.

After 5 seconds, it turns to display the desired temperature.

Because of location of remote controller, the real room temperature and the this displayed value can be different.

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• 5 °C is proper for the difference between room and outside temperature.

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18 OPERATING INSTRUCTIONS

Function Setting - Child Lock

It is the function to use preventing children or others from careless using.

Press	button repeatedly
1 until the	is flashing.
If moving to 'setup' icon area by
2 using	button, 'setup' icon
blinks, and child lock function is
setup if pressing		button at
that time.

3 When cancelling lock function, if moving to 'cancel' icon by pressing button and then, pressing button, child lock function is cancelled.

4	Press						button to exit.
	After				setup, it automatically gets out of

setup mode if there is no button input for 25 seconds.

When exiting without pressing set button, the manipulated value is not reflected.

OPERATING INSTRUCTIONS 19

Function Setting - Change Temp

Change temperature is the function to setup air-cooling and heating drive automatically changeable according to the temperature at artificial intelligence drive mode.

1	Repeat pressing	button until
	icon flash.

2	Press	button to change.
	Converting temp value : 1~7
	Press	button to complete
3 and active the setting process.

4 system will automatically release without any input after 25 seconds.

Press

button to exit or

When exiting without pressing set button, the manipulated value is not reflected.

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20 OPERATING INSTRUCTIONS

Function Setting - Filter Sign Clear

This function is to clear the indicator of indoor filter cleaning.

1 Press button repeatedly until the is flashing.

2

When the is flashing, press the to clear this display

•When filter is covered by dust, it will reduce cooling/heating efficiency and accumulate more electric power. Therefore. do clean the filter whenever cleaning time is expired.

* Filter cleaning indication is automatically cancelled without the separate cancellation after certain period of time.

OPERATING INSTRUCTIONS	21

Function Setting - Vane Angle Control

This function is to adjust angle at which airflow is blow out.

* Some functions may not be operated and displayed depending on the product type.

1 Repeat pressing button until icon flash.

2	Press	button to select active vane :
	1 / 2 / 3 / 4 / All / Standard
	Select Vane number using		buttons.
	Vane number : No. 1, 2, 3,		all, or

standard

- Selected vane is in operation.

- Please verify the operating vane. - To set the angle of all the vanes,

select 'all'.

- To set as the factory default settings, select 'standard'.

3 Select wind angle using button, and press button.

- The boundary of wind angle settings can be changed to 5 levels or 6 levels according to the product.

- When selecting 'standard' for Vane number, the wind angle does not move.

4 Set the wind angles for the remaining vanes as the same as above.

There are products with vanes with no. 1 and no. 2 only according to the product types.

5	Press	button to exit.
	After setup, it automatically
	gets out of setup mode if there
	is no button input for 60 seconds.
	When exiting without pressing set
	button, the manipulated value is not
	reflected.
	Press	button to complete and

6 active the setting process. (Airflow direction function will be released whenever setting vane angl

7 Press button to exit or system will automatically release without any input after 25 seconds.

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22 OPERATING INSTRUCTIONS

Function Setting - Changing Current Time

1 Please press function setup button. If pressing function setup button repeatedly, it moves to time setup menu.

‘Time setup’ icon is indicated at that time and date blinks at current time indication area.

Ex) Changing Current Time as

'Monday / AM 10:20'.

2 Pressday. key to adjust the current

3 Press key to move to AM/ PM setting mode (the 'AM/ PM segment will flash).

4 Setting AM/ PM value by pressing button.

5 Press button to move to 'Hour' setting mode. (the 'Hour' segment will flash)

6 Settingbutton. Hour value by pressing