LG A5UW30GFA2 INSTALLATION MANUAL

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INSTALLATION MANUAL

AIR

CONDITIONER

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

www.lg.com

MFL68883811

Rev.01_111920

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2	IMPORTANT SAFETY INSTRUCTIONS

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

!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.

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.

•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.

IMPORTANT SAFETY INSTRUCTIONS		3

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• For installation, removal or reinstall , always contact the dealer or an

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.

•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.

•Always install a dedicated circuit and breaker. Improper wiring or installation may cause fire or electric shock.

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 electirc 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.

	4	IMPORTANT SAFETY INSTRUCTIONS

<![if ! IE]> <![endif]>ENGLISH	• 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.
	• 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.Immediately turn
	the breaker off or disconnect the power supply cable. There is risk of elec-
	tric 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.
	• 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 fail-
	ure, 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 elec-
	tric shock.
	• When flammable gas leaks, turn off the gas and open a window for venti-
	lation before turning on the product. Do not use the telephone or turn
	switches on or off. There is risk of explosion or fire.

! 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.

IMPORTANT SAFETY INSTRUCTIONS		5

could damage or disturb the neighborhoods. It may cause a problem for		<![if ! IE]> <![endif]>ENGLISH

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

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.

• Please install safely at a place that can sufficiently endure the weight of the product.

If the strength is not sufficient, the product may fall and cause injury.

• The user must carry out checks and cleaning of routine to avoid defective performance. In a special situation, only service personnel can carry out repair work.

• If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent.

• Do not install the unit in potentially explosive atmospheres.

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.

•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 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.

	6	IMPORTANT SAFETY INSTRUCTIONS
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	• Do not mix air or gas other than the specified refrigerant used in the sys-

tem. 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.

• 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 hazards.

• 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.

• 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.

				TABLE OF CONTENTS	7
TABLE OF CONTENTS

2	IMPORTANT SAFETY		25 TEST RUNNING
	INSTRUCTIONS		26	FUNCTION
8	INSTALLATION
		26		DIP S/W Setting
		27		Forced Cooling Operation
9	INSTALLATION OF
		28		Wiring Error Check
	INDOOR, OUTDOOR	28		Saving Power Consumption
	UNIT	29		Night Quiet Mode
		30		Mode Lock
9	Select the best location
		30		SLC (Smart Load Control) Mode
10	Foundation for Installation
10	Piping length and elevation			18~40(1Ø) kBtu/h
		31		PCB Display(14/16/18/21k Model Only)
11	Refrigerant charge
		32		MAX COMBINATION
11	Drill a hole in the wall
12	FLARING WORK AND			CAPACITY
	CONNECTION OF PIPING	33		INSTALLATION GUIDE AT
12	Flaring work			THE SEASIDE
13	Connection of piping - Indoor
		33		SEASONAL WIND AND
15	Connection of piping - Outdoor
16	CONNECTING THE CABLE			CAUTIONS IN WINTER
	BETWEEN INDOOR UNIT	34		Airborne Noise Emission
		34		Limiting concentration
	AND OUTDOOR UNIT

16	Connect the cable to the Indoor unit
18	Connect the cable to the Outdoor unit

20CHECKING THE DRAINAGE AND FORM-

ING THE PIPINGS

20Checking the Drainage

21Forming the Piping

22AIR PURGING AND EVAC-

UATION

22Checking method

23Evacuation

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24 INSTALLATION PI485

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8 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.

s orles -11/16) 500(19

more or

3/8) - 39 ( 0 0 0 1

			-13/16)
			300(11ore
			m
			or
		ss	<![if ! IE]> <![endif]>e
	le		<![if ! IE]> <![endif]>r
	or		<![if ! IE]> <![endif]>o
	-11/16)		<![if ! IE]> <![endif]>mr
500(19			<![if ! IE]> <![endif]>o8)
			<![if ! IE]> <![endif]>/3-93 (000 1
			<![if ! IE]> <![endif]>H
			-13/16)
			300(11or
			more
LD		-3/8)
	1000(39more
		or

or300(11-
more13/16)				113/16)
600(				113/16)
		23		-
		23		more
or		-		300(1or
or			19/	32)
	more			32)

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.

INSTALLATION OF INDOOR, OUTDOOR UNIT	9

INSTALLATION OF INDOOR, OUTDOOR UNIT

Read completely, then follow step by step.

You need to select adequate installation location considering the following conditions, and make sure to acquire the consent of the user.

Select the best location

Indoor unit

1 Do not have any heat or steam near the unit.

2Select a place where there are no obstacles in front of the unit.

3Make sure that condensation drainage can be conveniently routed away.

4 Do not install near a doorway.

5Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.

6Use a stud finder to locate studs to prevent unnecessary damage to the wall.

! CAUTION

Install the indoor unit on the wall where the height from the floors more than 2.3 meters. (ART COOL Type Only 1.5m)

More than
10cm	More than 20cm
	More than 20cm

More than

10cm

More than 2.3m

More than

10cm

More than 20cm

More than 10cm

More than 2.3m

More than

10cm	More than 20cm

More than 10cm

More than 2.3m

More	More than 20cm
than 50cm

than 50cm

More than 1.

Outdoor unit

1If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

2Ensure that the spaces indicated by arrows around front, back and side of the unit.

3Do not place animals and plants in the path of the warm air.

4Take the air conditioner weight into account and select a place where noise and vibration are minimum.

5Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.

6Place that can sufficiently endure the weight and vibration of the outdoor unit and where even installation is possible.

7Place that has no direct influence of snow or rain.

8Place with no danger of snowfall or icicle drop.

9Place without weak floor or base such as decrepit part of the building or with a lot of snow accumulation.

10 Sufficient ventilation is secured.

Rooftop Installations

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

	more than 60cm
more than	more than
30cm	30cm
	30cm
more than	more than
70cm	60cm
	more than 60cm
	more than
	30cm
more than
30cm
more than
70cm
	more than
	60cm

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10 INSTALLATION OF INDOOR, OUTDOOR UNIT

Foundation for Installation

•Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation.

•Fix the unit securely by means of the foundation bolts. (Prepare 4 sets of M12 foundation bolts, nuts and washers each which are available on the market.)

•It is best to screw in the foundation bolts until their length are 20 mm from the foundation surface.

			Spring washer						Anti-vibration
			Spring washer						materials		Four bolt are
		Frame				Nut		Concrete
		Frame				Nut		Concrete
									base		required
	H-Beam							<![if ! IE]> <![endif]>75			3 thread ridges
	<![if ! IE]> <![endif]>100	<![if ! IE]> <![endif]>75								<![if ! IE]> <![endif]>200


							<![if ! IE]> <![endif]>200
											[Unit:mm]
					Foundation bolt executing method
Piping length and elevation
Multiple Piping Models												(Unit: m)

Phase	Capacity(kBtu/h)				Total Length				Max Length(A/B)	Max Elevation		In - In Elevation
											(h1)	(h2)
	14/16			30					20	15		7.5
	18			50					25	15		7.5
1Ø	21			50					25	15		7.5
1Ø	24/27			70					25	15		7.5
	24/27			70					25	15		7.5
	30			75					25	15		7.5
	40			85					25	15		7.5

A	!	CAUTION

	Capacity is based on standard length and
	maximum allowance length is on the
h2	basis of reliability. If outdoor unit is at
	higher elevation than the indoor units,
h1	after 24m of vertical height, 1 oil trap is
	required.
B

Multiple Piping Type

INSTALLATION OF INDOOR, OUTDOOR UNIT 11

Refrigerant charge

The calculation of the additional charge should be taken in account for the length of extra pipe.

Multiple Piping Models						(Unit: m)

Phase	Capacity	Standard	Max Piping for	Max total Piping	Chargeless	Additional
	(kBtu/h)	Length(m)	one room(m)	Length	Length	Charge(g/m)
	14/16	7.5	20	30	20	20
	18	7.5	25	50	22.5	20
1Ø	21	7.5	25	50	22.5	20
1Ø	24/27	7.5	25	70	30	20
	24/27	7.5	25	70	30	20
	30	7.5	25	75	37.5	20
	40	7.5	25	85	37.5	20

•Multiple Piping Models

Additional charge (g) = ((A Room Installation Length – Standard Length ) x 20g/m

+(B Room Installation Length – Standard Length ) x 20g/m +.. ) - CF(Correction Factor) x 150

ηCF = Max. number of connectable indoor unit – Total number of connected indoor unit

Drill a hole in the wall

Drill the piping hole with a Ø65mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

	WALL
Indoor	Outdoor
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