LG A4UW276FA3 INSTALLATION MANUAL

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LG

LG

Multi Type Air Conditioner

INSTALLATION MANUAL

IMPORTANT

•Please read this instruction sheet completely before installing the product.

•When the power cord is damaged, replacement work shall be performed by authorized personnel only.

•Installation work must be performed in accordance with the national wiring standards by authorized personnel only.

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Multi Type Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation Requirements
Installation Parts Provided .........................................	3
Safety Precautions..................................................	4~5
Installation of indoor, outdoor unit .....................	6~11

Flaring work and connection of piping.............

12~21

Connecting the Cable between Indoor Unit and
Outdoor Unit ........................................................	22~24
Checking the Drainage, Forming the Pipings
and Long pipe Setting ........................................	25~27
Air Purging and Evacuation .....................................	28
Panel Front Assembly ..............................................	30
Installation PI485.......................................................	31
Test running...............................................................	33
Combination indoor units ........................................	34
Max Combination Capacity ......................................	35
Installation guide at the seaside..............................	36

Required Tools

Level gauge

Screw driver

Electric drill

Hole core drill (ø70mm)

Horizontal meter

Flaring tool set

Specified torque wrenches 1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m (different depending on model No.)

Spanner .................Half union

A glass of water

Screw driver

Hexagonal wrench(4mm)

Gas-leak detector

Vacuum pump

Gauge manifold

Owner's manual

Thermometer

Holder Remote Control

2 Multi Air Conditioner

Installation Parts Provided

Installation Parts Provided

Standard Type

Installation plate

Type "B" screws

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

Holder Remote Control

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more than
60cm		5. Copper pipe (Liquid side)
more than		6. Copper pipe (Gas side)
more than	30cm
30cm

more than

70cm

7. Connecting cable

more than 60cm

	more than
	60cm	Air Intake
		(side, rear)
		more than
		30cm
more than
30cm		Control cover
		Connecting wire
		Connection pipe
		Drain hose
more than		more than
		60cm
70cm
	Air Outlet

Installation Manual 3

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

WARNING	This symbol indicates the possibility of death or serious injury.
CAUTION	This symbol indicates the possibility of injury or damage.

■ Meanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.

WARNING

Do not disassemble or repair the product.

Do not handle the flamable gas or explosive materials near the product.

Do not install the product on a defected installation stand.

For installation, always contact the dealer or service center.

Always earth the product.

•It will cause fire or electric shock.

Do not install where flamable gas could leak.

•Otherwise, it may cause esplosion or fire.

Be cautious when unpacking and installing the product.

•Sharp edges could cause injury.

For electric work, contact the dealer or service center.

•Otherwise, it may cause fire, electric shock, explosion or injury."

•Otherwise, It will cause fire or electric shock.

Always intstall a circuit breaker and main breaker.

•No installation may cause fire and electric shock.

	Safety Precautions
Do not touch(operate) product with wet	If strange sound, smell or smoke come from
hands.	product, turn the breaker off.
• Otherwise, it may cause fire or electric shock.	• Otherwise, it may cause electric shock or fire.
	part.
	may cause fire or electric shock.
	the suction inlet of the product
	.
	may cause electric shock or
	put anyting on the product.
	may cause personal injury and
	.

Fix the outdoor unit on the floor.

•Otherwise, it can be blown away by the strong wind. It will cause injury or accident.

CAUTION

Install the drain hose to ensure that drain can be securely done.

• Otherwise, it may cause water leakage.

Do not install the product where the noise or hot wind from the outdoor unit could give any casualty to the neighborhood

• Otherwise, it may cause dispute with the neighborhoods.

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Installation Manual 5

Installation of Indoor, Outdoor Unit

Installation of Indoor, Outdoor Unit

Read completely, then follow step by step.

Selectthebestlocation

Indoor unit

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

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

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

4.Do not install near a doorway.

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

6.Use 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)

Outdoor unit

1.If 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.

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

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

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

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

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
10cm	20cm
	More than
More	10cm
More than
10cm	20cm
	More than
	10cm
More
More	More than 20cm
than 50cm
	More
More than 1.	than 50cm

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

6 Multi Air Conditioner

Installation of Indoor, Outdoor Unit

FixingInstallationPlate

The wall you select should be strong and solid enough to prevent vibration

1.Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.

•Mount the installation plate horizontally by aligning the centerline using a level.

Chassis

Hook

<Type 1>

Type “A”

2.Measure the wall and mark the centerline. It is also important to use caution concerning the location of the installation plate-routing of the wiring to power outlets is through the walls typically. Drilling the hole through the wall for piping connections must be done safely.

Installation Plate

Chassis

Hook

<Type 2>		Type “A”
D		Installation plate	B
Ø70mm	C	<Type 1>	A	Ø70mm
	Left rear piping		Right rear piping

		Installation plate
Ø70mm	133mm	<Type 2>	100mm	Ø70mm
	Left rear piping		Right rear piping

	Indoor Type	Capacity		Distance (mm)			Type
		(kBtu/h)	A	B	C	D
	Wall mounted	7,9,12	55	105	65	105	1
		18,24	100	122	240	122	2
	ART COOL Mirror	7,9,12	70	110	90	110	1
		18,24	100	122	240	122	2

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Installation Manual 7

Installation of Indoor, Outdoor Unit

Pipinglengthandelevation

Multi Piping Type					(Unit: m)
Capacity(kBtu/h)		Total Length	Max Length(A/B)	Max Elevation	In - In Elevation
				(h1)	(h2)
21		50	25	15	7.5
24/27		70	25	15	7.5
30		75	25	15	7.5
40		85	25	15	7.5

Distributor Type							(Unit: m)
Phase	Capacity	Total Length	Max Main Pipe	Total Branch	Max Branch	Max Elevation	In - In Elevation
	(kBtu/h)		Length (A/B)	Pipe Length	Pipe Length	(h1)	(h2)
	40	100	50	50	15	30	15
1Ø	48	135	55	80	15	30	15
	56	145	55	90	15	30	15
	42	125	55	70	15	30	15
3Ø	48	135	55	80	15	30	15
	54	145	55	90	15	30	15

A	A Distributor	Branch Pipe
	h2
	Distributor
		h2
h1	h1
		Main Pipe

B	B

Multi Piping Type Distributor Type

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

8 Multi Air Conditioner

Installation of Indoor, Outdoor Unit

Refrigerantcharge

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

Multiple Piping Models

	Model	Standard	Max piping for	Max total Piping	Additional
		length(m)	one room(m)	Length(m)	Charge(g/m)
	A3UW216FA3	7.5	25	50	20
	A4UW246FA3	7.5	25	70	20
	A4UW276FA3	7.5	25	70	20
	A5UW306FA3	7.5	25	75	20
	A5UW406FA3	7.5	25	85	20

Distributor type Models

		Main Piping length		Branch piping length
Phase	Model	Standard	Additional	Standard	Additional
		length(m)	refrigerant(g/m)	length(m)	refrigerant(g/m)
	A7UW406FA3	5	50	35	20
1Ø	A8UW486FA3	5	50	40	20
	A9UW566FA3	5	50	45	20
	A7UW428FA3	5	50	35	20
3Ø	A8UW488FA3	5	50	40	20
	A9UW548FA3	5	50	45	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

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

■ Distributor type Models

Additional charge (g) = (( Total Main piping Length - Main Standard Length ) x 50g/m

+(A Room Branch Length – Standard Length ) x 20g/m

+(B Room Branch Length – Standard Length ) x 20g/m

+(C Room Branch Length – Standard Length ) x 20g/m +.. ) - CF(Correction Factor) x 100

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

Additional Charge Calculation Example-1

Ex) A7UW406FA3

A A

C

a

b

c

7k

9k

9k

B

d

e

9k

18k

•Total main pipe(A+B+C) = 30m

•Each branch pipe a = 10m

b = 8m c = 5m d = 3m e = 10m

Additional Charge

=((30-5) x 50 + (10-5) x 20 + (8-5) x 20

+(5-5) x 20 + (3-5) x 20 + (10-5) x 20) - (7-5) x 100 = 1270g

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Installation Manual 9

Installation of Indoor, Outdoor Unit

PreparingworkforInstallation(ARTCOOLTypeOnly)

Open panel front

1.First, push the front panel backward and lift it up to remove the two screws.

2.The moment of lifting the both lower parts of panel front, you can hear sound this panel came out, In this time panel front is separated

3.After pull down this panel a bit, and separate connecting wire with product.

Panel Front

Connector

Panel Front

Connector

Remove cover pipe and cover side

1.Remove two screws(for fixing cover pipe)

2.Pull up the cover side of desired connecting direction, then cover side is separated.

3.In case of connecting direction is left or right, path through the hole of cover side.

CAUTION: After removing the pipe hole, cut the burr for safety.

NOTICE When connecting pipe path through rear wall, don’t remove the hole.

Drain hose junction

1.Remove the rubber stopple of desired direction of drainage.

2.As the following picture, Insert drain hose in the handle of drain pan, and join drain hose and connecting hose.

Pipe hole

	Adhesive	Only one
		desiring direction
	Connecting
	part
	Drain	rubber cap
	hose

10 Multi Air Conditioner

Installation of Indoor, Outdoor Unit

Sticking the installationguide mapandfixingIndoor unit (ARTCOOLTypeOnly)

Put an Installation Guide Map on the desired surface.	Adjust level even by level guage and fix to installation
	for reference on the wall.	INSTALLATION
INSTALLATION GUIDE MAP	Horizontality
			GUIDE
				MAP

Make a hole with diameter of 6mm and depth of 30-35mm when piercing a screw point.

INSTAIIATION

GUIDE M

AP

Drive the fore plastic anchors into drilled points.

INSTALLATION	GUIDE
		MAP

Plastic anchors

Hang the hole of product at the upper screws. (In this time, Remove the map)

(Falling attention)

INSTALLATION G

UIDE MAP

Hanger hole (Rear side of

product)

Check the fixed product with light power.

Drill the piercing part for connecting pipe as diameter 50mm. (In case of piercing rear surface)

Refer to No. 5 on this page when making a hole in the wall.

First, Drive the two points of the upper parts by screws (Leave 10mm for hanging product)

10mm	INSTALLATION
		GU

Drive the lower parts after facing the hole of product with plastic anchors, and fix completely the upper screws.

Plastic anchors

In case of nothing wrong in the matter, connect the pipe and the wire. (Installation manual reference)

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Drillaholeinthewall

•Drill the piping hole with a ø70mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

Standard / ART COOL Deluxe type		ART COOL type
	WALL		WALL
Indoor	Outdoor	Indoor	Outdoor
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Installation Manual 11

Flaring Work and Connection of Piping

Flaring Work and Connection of Piping

Flaringwork

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cut the pipes and the cable.

1.Use the piping kit accessory or the pipes purchased locally.

2.Measure the distance between the indoor and the outdoor unit.

3.Cut the pipes a little longer than measured distance.

4.Cut the cable 1.5m longer than the pipe length.

Burrs removal

1.Completely remove all burrs from the cut cross section of pipe/tube.

2.Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Copper		Slanted	Uneven Rough
pipe	90°
		Pipe
		Reamer

Point down

Putting nut on

•Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.

(not possible to put them on after flaring work)

Flaring work

Flare nut

Copper tube

• Carry out flaring work using flaring tool as shown						Handle
below.				<![if ! IE]> <![endif]>"A"
• Firmly hold copper pipe in a die in the dimension			Bar		Bar
						Yoke
shown in the table above.
Outside diameter		A				Cone
mm	inch	mm		Copper pipe
Ø6.35	1/4	1.1~1.3
Ø9.52	3/8	1.5~1.7			Clamp handle	Red arrow mark
Ø12.7	1/2	1.6~1.8
Ø15.88	5/8	1.6~1.8
Ø19.05	3/4	1.9~2.1

12 Multi Air Conditioner