LG MU2R15 INSTALLATION INSTRUCTIONS

		<![if ! IE]> <![endif]>ЯЗЫК РУССКИЙ
		<![if ! IE]> <![endif]>УКРАÏНСЬКА
	INSTALLATION MANUAL	<![if ! IE]> <![endif]>ТІЛІ ҚАЗАҚ
		<![if ! IE]> <![endif]>МОВА БЕЛАРУСКАЯ
	AIR
		<![if ! IE]> <![endif]>O‘
	CONDITIONER	<![if ! IE]> <![endif]>ZBEK
		<![if ! IE]> <![endif]>TILI

Please read this installation manual completely before installing the product. Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

Please retain this installation manual for future reference after reading it thoroughly.

MULTI

Original instruction

[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA

MFL68883815	www.lg.com
Rev.02_100820	Copyright © 2017 - 2020 LG Electronics Inc. All Rights Reserved.

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<![endif]>ROMÂNĂ LIMBA POLSKI NEDERLANDS ČEŠTINA ΕΛΛΗΝΙΚΆ DEUTSCH FRANÇAIS ESPAÑOL ITALIANO ENGLISH

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2 IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

Read the precautions in this manual carefully before operat-

This appliance is filled with flammable

ing the unit.

refrigerant (R32)

This symbol indicates that the

This symbol indicates that a service

Operation Manual should be

personnel should be handling this

read carefully.

equipment with reference to the Installation Manual.

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

!WARNING

•Installation or repairs made by unqualified persons can result in hazards to you and others.

•Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

•The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

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

•Compliance with national gas regulations shall be observed.

Installation

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

•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.

	IMPORTANT SAFETY INSTRUCTIONS	3
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	• 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 scratches 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 dam-
	age or injury or even death of a person.
	• 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.
	• 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 or fire.
	• Safely dispose off the packing materials. Like screws, nails,
	batteries, broken things etc after installation or svc and then
	tear away and throw away the plastic packaging bags. Children
	may play with them and cause injury.
	• Be sure to check the refrigerant to be used. Please read the
	label on the product. Incorrect refrigerant used can prevent the
	normal operation of the unit.
	• 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.

	4	IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH	• 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.
	• The appliance shall be stored in a room without continuously
	operating ignition sources (for example: open flames, an oper-
	ating gas appliance or an operating electric heater)
	• Do not use means to accelerate the defrosting process or to
	clean, other than those recommended by the manufacturer.
	• Do not pierce or burn refrigerant cycle part.
	• Be aware that refrigerants may not contain an odour.
	• Keep any required ventilation openings clear of obstruction.
	• The appliance shall be stored in a well-ventilated area where the
	room size corresponds to the room area as specified for operation.
	• Refrigerant tubing shall be protected or enclosed to avoid damage.
	• Flexible refrigerant connectors (such as connecting lines be-
	tween the indoor and outdoor unit) that may be displaced dur-
	ing normal operations shall be protected against mechanical
	damage.
	• A brazed, welded, or mechanical connection shall be made be-
	fore opening the valves to permit refrigerant to flow between
	the refrigerating system parts.
	• Mechanical connections shall be accessible for maintenance
	purposes.

Operation

•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 electric shock.

•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 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.

	IMPORTANT SAFETY INSTRUCTIONS	5
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	• 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 com-
	bustibles near the product. There is risk of fire.
	• Do not use the product in a tightly closed space for a long
	time. Perform ventilation regularly. Oxygen 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 sound, smell or smoke comes from product.Immedi-
	ately turn the breaker off or disconnect 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 defi-
	ciency can occur and hence harm your health.
	• 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.
	• When flammable gas leaks, turn off the gas and open a win-
	dow for ventilation before turning on the product. Do not use
	the telephone or turn switches on or off. There is risk of explo-
	sion or fire.
	• Make sure to ventilate sufficiently when this air conditioner
	and a heating appliance such as a heater are used simultane-
	ously. Failure to do so may result in fire, serious injury, or prod-
	uct failure.
	• Periodic ( more than once/year ) cleaning of the dust or salt
	particles stuck on the heat exchanger by using water.

	6	IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH	• Dismantling the unit, treatment of the refrigerant oil and even-
	tual parts should be done in accordance with local and national
	standards.

! CAUTION

Installation

• 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 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.

• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.

• Wear adequate personal protection equipment (PPE) when installing, maintaining or servicing the product.

Operation

•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.

IMPORTANT SAFETY INSTRUCTIONS		7
• Use a soft cloth to clean. Do not use harsh detergents, sol-		<![if ! IE]> <![endif]>ENGLISH

vents 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 anything 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 leaking refrigerant gas. The refrigerant 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 harmful 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.

	8	IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH	• If you swallow the battery fluid from a leak, wash out the in-
	side of your mouth thoroughly and then consult a doctor. Fail-
	ure to do so may result in serious health complications.
	• Do not let the air conditioner run for a long time when the hu-
	midity is very high and a door or a window is left open. Mois-
	ture 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 sani-
	tary 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 appliance shall be stored so as to prevent mechanical
	damage from occurring.
	• Servicing shall only be performed as recommended by the
	equipment manufacturer. Maintenance and repair requiring the
	assistance of other skilled personnel shall be carried out under
	the supervision of the person competent in the use of flamma-
	ble refrigerants.
	• The installation of pipe-work shall be kept to a minimum
	• When mechanical connectors are reused indoors, sealing parts
	shall be renewed.
	• When flared joints are reused indoors, the flare part shall be re-
	fabricated.
	• This appliance is not intended for use by persons (including chil-
	dren) 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 super-
	vised to ensure that they do not play with the appliance.
	• This appliance can be used by children aged from 8 years and
	above and persons with reduced physical, sensory or mental
	capabilities or lack of experience and knowledge if they have
	been given supervision or instruction concerning use of the ap-
	pliance in a safe way and Understand the hazards involved.
	Children shall not play with the appliance. Cleaning and user
	maintenance shall not be made by children without supervision

					TABLE OF CONTENTS	9
	TABLE OF CONTENTS
	2	IMPORTANT SAFETY	22		INSTALLATION PI485
		INSTRUCTIONS
			23		TEST RUNNING
	10	INSTALLATION
			24		FUNCTION
	11	INSTALLATION OF OUT-
			24		DIP S/W Setting
		DOOR UNIT	26		Forced Cooling Operation
	11	Select the best location	26		Wiring Error Check
	13	Piping length and elevation	27		Saving Power Consumption
	13	Refrigerant charge	28		Night Quiet Mode
	14	FLARING WORK AND	29		Mode Lock
			30		MAX COMBINATION
		CONNECTION OF PIPING
					CAPACITY
	14	Preparation of Piping
	15	Connection of piping - Outdoor	31		INSTALLATION GUIDE AT
	16	CONNECTING THE CABLE
					THE SEASIDE
		BETWEEN INDOOR UNIT
			31		SEASONAL WIND AND
		AND OUTDOOR UNIT
					CAUTIONS IN WINTER
	16	Connect the cable to the Indoor unit
			32		Model Designation
	17	Connect the cable to the Outdoor unit
			32		Airborne Noise Emission

19FORMING THE PIPING

20AIR PURGING AND EVACUATION

20Checking method

21Evacuation

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10 INSTALLATION

INSTALLATION

Installation Parts

Installation plate

Type "B" screws

Type "A" screw (6 EA)	Type "A" screw (8 EA)	Type "A" screw (7 EA)	Type "A" screw and plastic anchors

Holder Remote Control

Clearance of side discharge unit [Unit : mm(inch)]

Do not install the product where sufficient ventilation is not secured.

The performance may be decreased or the product may not be operated.

-13/16) 300(11ore m or

s orles 6) 1 -11/ 500(19

30
or	0(
	11-
	m	13	/16)
	ore

60	0(23-
or		19	/32)
		more

	more
	or
	3/8)
	-
	(39
	0
	0
	0
	1
	16)
-13/
11	e
mor
300(or

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			le					<![if ! IE]> <![endif]>r
		or						<![if ! IE]> <![endif]>o
-11/16)								<![if ! IE]> <![endif]>m
19								<![if ! IE]> <![endif]>ro
0(								<![if ! IE]> <![endif]>)
50								<![if ! IE]> <![endif]>8
								<![if ! IE]> <![endif]>/3-93 (0001
								<![if ! IE]> <![endif]>H
							-13/16)
							300(11or
								more
LD						-3/8)
				39
	00(					more
10
				or

300(11-13/16) or more

2000(78-3/4) or more

600(23-19/32) or more

1000(39-3/8) or more

η In case of series or another installation, please refer to related PDB.