LG ARUN050GSS0 installation manual

MFL67798011 2018. 10. 25. 9:51 Page 1

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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.

MFL67798011	www.lg.com
Rev.02_101518	Copyright © 2013 - 2018 LG Electronics Inc. All Rights Reserved.

MFL67798011 2018. 10. 25. 9:51 Page 2

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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 :

MFL67798011 2018. 10. 25. 9:51 Page 3

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

! WARNING

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

•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

•Have all electric work done by a licensed electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use a special circuit.

-If the power source capacity is inadequate or electric work is performed improperly, electric shock or fire may result.

•Ask the dealer or an authorized technician to install the air conditioner.

-Improper installation by the user may result in water leakage, electric shock, or fire.

•Always ground the product.

-There is risk of fire or electric shock.

•Always intstall a dedicated circuit and breaker.

-Improper wiring or installation may cause fire or electric shock.

•For re-installation of the installed product, always contact a dealer or an Authorized Service Center.

-There is risk of fire, electric shock, explosion, or injury.

•Do not install, remove, or re-install the unit by yourself (customer).

-There is risk of fire, electric shock, explosion, or injury.

•Do not store or use flammable gas or combustibles near the air conditioner.

-There is risk of fire or failure of product.

•Use the correctly rated breaker or fuse.

-There is risk of fire or electric shock.

•Prepare for strong wind or earthquake and install the unit at the specified place.

-Improper installation may cause the unit to topple and result in injury.

-While installing the product on the rooftop, maintain sufficient distance from the edge to prevent falling down from the building.

•Do not install the product on a defective installation stand.

-It may cause injury, accident, or damage to the product.

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4			IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH		explosion.
		• 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
		- There is the risk of death, injury, fire or explosion.
		• When installing and moving the air conditioner to another site, do not charge it with a
		different refrigerant from the refrigerant specified on the unit.
		- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may
			malfunction and the unit may be damaged.
		• Do not reconstruct to change the settings of the protection devices.
		- If the pressure switch, thermal switch, or other protection device is shorted and operated
			forcibly, or parts other than those specified by LGE are used, fire or explosion may result.
		• Ventilate before operating air conditioner when gas leaked out.
		- It may cause explosion, fire, and burn.
		• Securely install the cover of control box and the panel.
		- If the cover and panel are not installed securely, dust or water may enter the outdoor unit
			and fire or electric shock may result.
		• If the air conditioner is installed in a small room, measures must be taken to prevent the
		refrigerant concentration from exceeding the safety limit when the refrigerant leaks.
		- Consult the dealer regarding the appropriate measures to prevent the safety limit from being
			exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, harzards
			due to lack of oxygen in the room could result.

Operation

•Do not damage or use an unspecified power cable.

-There is risk of fire, electric shock, explosion, or injury.

•Use a dedicated power cable for this appliance.

-There is risk of fire or electrical shock.

•Be cautious that water could not enter the product.

-There is risk of fire, electric shock, or product damage.

•Do not touch the power switch with wet hands.

-There is risk of fire, electric shock, explosion, or injury.

•When the product is soaked (flooded or submerged), contact an Authorized Service Center.

-There is risk of fire or electric shock.

•Be cautious not to touch the sharp edges when installing.

-It may cause injury.

•Take care to ensure that nobody could step on or fall onto the outdoor unit.

-This could result in personal injury and product damage.

•Do not open the inlet 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.

MFL67798011 2018. 10. 25. 9:51 Page 5

IMPORTANT SAFETY INSTRUCTIONS 5

! CAUTION

Installation

•Always check for gas (refrigerant) leakage after installation or repair of product.

-Low refrigerant levels may cause failure of product.

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

-It may cause a problem for your neighbors.

•Keep level even when installing the product.

-To avoid vibration or water leakage.

•Do not install the unit where combustible gas may leak.

-If the gas leaks and accumulates around the unit, an explosion may result.

•Use power cables of sufficient current carrying capacity and rating.

-Cables that are too small may leak, generate heat, and cause a fire.

•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.

•Keep the unit away from children. The heat exchanger is very sharp.

-It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of capacity.

•When installting the unit in a hospital, communication station, or similar place, provide sufficient protection against noise.

-The inverter equipment, private power generator, high-frequency medical equipment, or radio communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On the other hand, the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting.

•Do not install the product where it is exposed to sea wind (salt spray) directly.

-It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Operation

•Do not use the air conditioner in special environments.

-Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its parts.

•Do not block the inlet or outlet.

-It may cause failure of appliance or accident.

•Make the connections securely so that the outside force of the cable may not be applied to the terminals.

-Inadequate connection and fastening may generate heat and cause a fire.

•Be sure the installation area does not deteriorate with age.

-If the base collapses, the air conditioner could fall with it, causing property damage, product failure, or personal injury.

•Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual.

-A bad connection may cause water leakage.

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6		IMPORTANT SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH		- Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is
		• Be very careful about product transportation.
		- Only one person should not carry the product if it weighs more than 20 kg.
		dangerous.
		- Do not touch the heat exchanger fins. Doing so may cut your fingers.
		- When transporting the outdoor unit, suspending it at the specified positions on the unit base. Also
		support the outdoor unit at four points so that it cannot slip sideways.
		• Safely dispose of the packing materials.
		- Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
		- Tear apart and throw away plastic packaging bags so that children may not play with them. If children play
		with a plastic bag which was not torn apart, they face the risk of suffocation.
		• Turn on the power at least 6 hours before starting operation.
		- Starting operation immediately after turning on the main power switch can result in severe damage to
		internal parts. Keep the power switch turned on during the operational season.
		• Do not touch any of the refrigerant piping during and after operation.
		- It can cause a burn or frostbite.
		• Do not operate the air conditioner with the panels or guards removed.
		- Rotating, hot, or high-voltage parts can cause injuries.
		• Do not directly turn off the main power switch after stopping operation.
		- Wait at least 5 minutes before turning off the main power switch. Otherwise it may result in water
		leakage or other problems.
		• Auto-addressing should be done in condition of connecting the power of all indoor and outdoour units. Auto-
		addressing should also be done in case of changing the indoor unit PCB.
		• Use a firm stool or ladder when cleaning or maintaining the air conditioner.
		- Be careful and avoid personal injury.
		• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is powered
		on.
		- There are sharp and moving parts that could cause personal injury.
		• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

MFL67798011 2018. 10. 25. 9:51 Page 7

TABLE OF CONTENTS	7

TABLE OF CONTENTS

2TIPS FOR SAVING ENERGY

3IMPORTANT SAFETY INSTRUCTIONS

8INSTALLATION PROCESS

9OUTDOOR UNITS INFORMATION

10ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A

11SELECT THE BEST LOCATION

12INSTALLATION SPACE

16 Collective / Continuous Installation for roof top use

18LIFTING METHOD

19INSTALLATION

19The location of the Anchor bolts

20Foundation for Installation

21Preparation of Piping

24 Plumbing materials and storage methods

26	REFRIGERANT PIPING INSTALLATION
26	Precautions on Pipe connection / Valve operation
27	PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
27	Preparation Work
28	Pipe Drawing Out

30Selection of Refrigerant Piping

31Refrigerant piping system

38Refrigerant charging

39Distribution Method

40Branch pipe Fitting

44 Leak Test and Vacuum drying

46Vacuum Mode

47Heat insulation of refrigerant piping

48ELECTRICAL WIRING

48 Caution

50Control box and connecting position of wiring

51Communication and Power Cables

52Wiring of main power supply and equipment capacity

53Field Wiring

57Installation of IO Module(optional)

58Checking the setting of outdoor units

59Automatic Addressing

62Group Number setting

63Cool & Heat selector

64Static pressure compensation mode

65Night Low Noise Function

66Setting the ODU address

67Snow removal & rapid defrost

68Target pressure adjusting

69Self-Diagnosis Function

72 CAUTION FOR REFRIGERANT LEAK

72	Introduction
72	Checking procedure of limiting concentration

74 INSTALLATION GUIDE AT THE SEASIDE

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8 INSTALLATION PROCESS

INSTALLATION PROCESS

Determination of division work		Indicate clearly who will be responsible for switch setting.
Preparation of contract drawings		Make connection clearly between outdoor, indoor, remote controller and option.

Sleeve and insert work

Installation of indoor unit

Refrigerant piping work

Drain pipe work

Duct work

Heat insulation work

Electrical work

(connection circuits and drive circuits)

Take account of gradient of drain piping

Check model name to make sure the fitting is made correctly

Special attention to dryness, cleanness and tightness

Adjust to downward gradient

Make sure airflow is sufficient

Make sure no gaps are left where the insulating materials are joined

Multiple core cable must not be used. (suitable cable should be selected)

Outdoor unit foundation work The foundation must be level even

Installation of outdoor unit

Avoid short circuits and ensure sufficient space is allowed for service

Leak test

Vacuum drying

Additional charge of refrigerant

Fit facing panels

Automatic addressing of indoor unit

Test run adjustment

Transfer to customer with explanation

In the final check for 24hours at 3.8 MPa(38.7 kgf/cm2) there must be no drop in pressure.

The vacuum pump used must have a capacity of reaching at least 5 torr, more than 1 hour

Recharge correctly as calculated in this manual. and record the amount of added refrigerant

Make sure there are no gaps left between the facing materials used on the ceiling

Refer to automatic addressing flowchart

Preheat the crank case with the electrical heater for more than 6 hours.

Run each indoor unit in turn to make sure the pipe work has been fitted correctly

Explain the use of the system as clearly as possible to your customer and make sure all relevant documentation is in order

!CAUTION

•The above list indicates the order in which the individual work operations are normally carried out but this order may be varied where local conditions warrants such change.

•The thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8 MPa.

•Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly.)

MFL67798011 2018. 10. 25. 9:51 Page 9

OUTDOOR UNITS INFORMATION 9

OUTDOOR UNITS INFORMATION

!CAUTION

•Ratio of the connectable Indoor Units to the Outdoor: Within 50 ~ 160 %

•Ratio of running Indoor Units to the Outdoor: Within 10 ~ 100 %

•A combination operation over 100 % cause to reduce each indoor unit capacity.

Power Supply : 3 Ø, 380-415 V3N, 50 Hz / 3 Ø, 380 V3N, 60 Hz

System(HP)

4

5

6

Model

ARUN040LSS0

ARUN050LSS0

ARUN060LSS0

Refrigerant Precharged

kg

3

3

3

Amount

lbs

6.6

6.6

6.6

Net weight

kg

96

96

96

lbs

212

212

212

Dimensions (WxHxD)

mm

950 × 1 380 × 330

950 × 1 380 × 330

950 × 1 380 × 330

inch

37.4 × 54.3 × 13.0

37.4 × 54.3 × 13.0

37.4 × 54.3 × 13.0

Piping

Liquid Pipes

mm(inch)

Ø 9.52(3/8)

Ø 9.52(3/8)

Ø 9.52(3/8)

Connections

Gas Pipes

mm(inch)

Ø 15.88(5/8)

Ø 15.88(5/8)

Ø 19.05(3/4)

System(HP)

8

10

12

14

Model

ARUN080LSS0

ARUN100LSS0

ARUN120LSS0

ARUV140LSS0

Refrigerant Precharged

kg

3.5

4.5

6

6

Amount

lbs

7.7

9.9

13.2

13.2

Net weight

kg

115

144

157

157

lbs

254

317

346

346

Dimensions (WxHxD)

mm

950 x 1 380 x330

1 090 x 1 625 x 380

1 090 x 1 625 x 380

1 090 x 1 625 x 380

inch

37.4 x 54.3 x 13.0

42.9 x 64.0 x 15.0

42.9 x 64.0 x 15.0

42.9 x 64.0 x 15.0

Piping

Liquid Pipes

mm(inch)

Ø 9.52(3/8)

Ø 9.52(3/8)

Ø 12.7(1/2)

Ø 12.7(1/2)

Connections

Gas Pipes

mm(inch)

Ø 19.05(3/4)

Ø 22.2(7/8)

Ø 28.58(11/8)

Ø 28.58(11/8)

Power Supply : 1 Ø, 220-240 V~, 50 Hz / 1 Ø, 220 V, 60 Hz

	System(HP)			4	5	6
	Model			ARUN040GSS0	ARUN050GSS0	ARUN060GSS0
	Refrigerant Precharged		kg	1.8	3	3
	Amount		lbs	4	6.6	6.6
	Net weight		kg	70	94	94
			lbs	154	207	207
	Dimensions (WxHxD)		mm	950 × 834 × 330	950 × 1 380 × 330	950 × 1 380 × 330
			inch	37.4 × 32.8 × 13.0	37.4 × 54.3 × 13.0	37.4 × 54.3 × 13.0
	Piping	Liquid Pipes	mm(inch)	Ø 9.52(3/8)	Ø 9.52(3/8)	Ø 9.52(3/8)
	Connections	Gas Pipes	mm(inch)	Ø 15.88(5/8)	Ø 15.88(5/8)	Ø 19.05(3/4)

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10 ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A

ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A

The refrigerant R410A has the property of higher operating pressure in comparison with R22. Therefore, all materials have the characteristics of higher resisting pressure than R22 ones and this characteristic should be also considered during the installation.

R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone depletion potential (ODP) of R410A is 0. These days the developed countries have approved it as the environment-friendly refrigerant and encouraged to use it widely to prevent environment pollution.

!CAUTION

•The wall thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8 MPa

•Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.

If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly.

•Do not place the refrigerant container under the direct rays of the sun to prevent it from exploding.

•For high-pressure refrigerant, any unapproved pipe must not be used.

•Do not heat pipes more than necessary to prevent them from softening.

•Be careful not to install wrongly to minimize economic loss because it is expensive in comparison with R22.

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SELECT THE BEST LOCATION 11

SELECT THE BEST LOCATION

1Select space for installing outdoor unit, which will meet the following conditions:

•No direct thermal radiation from other heat sources

•No possibility of annoying neighbors by noise from unit

•No exposition to strong wind

•With strength which bears weight of unit

•Note that drain flows out of unit when heating

•With space for air passage and service work shown next

•Because of the possibility of fire, do not install unit to the space where generation, inflow, stagnation, and leakage of combustible gas is expected.

•Avoid unit installation in a place where acidic solution and spray (sulfur) are often used.

•Do not use unit under any special environment where oil, steam and sulfuric gas exist.

•It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the outdoor unit.

•If installation site is area of heavy snowfall, then the following directions should be observed.

-Make the foundation as high as possible.

-Fit a snow protection hood.

2Select installation location considering following conditions to avoid bad condition when additionally performing defrost operation.

•Install the outdoor unit at a place well ventilated and having a lot of sunshine in case of installing the product at a place with a high humidity in winter (near beach, coast, lake, etc). (Ex) Rooftop where sunshine always shines.

•Performance of heating will be reduced and preheat time of the indoor unit may be lengthened in case of installing the outdoor unit in winter at following location:

-Shade position with a narrow space

-Location with much moisture in neighboring floor.

-Location with much humidity around.

-Location where ventilation is good. It is recommended to install the outdoor unit at a place with a lot of sunshine as possible as.

-Location where water gathers since the floor is not even.

3When installing the outdoor unit in a place that is constantly exposed to a strong wind like a coast or on a high story of a building, secure a normal fan operation by using a duct or a wind shield.

•Install the unit so that its discharge port faces to the wall of the building. Keep a distance 500 mm or more between the unit and the wall surface.

•Supposing the wind direction during the operation season of the air conditioner, install the unit so that the discharge port is set at right angle to the wind direction.

[Unit : mm]

700

Air inlet grille

Turn the air outlet side toward the building's wall, fence or windbreak screen.

! WARNING

Fix the outdoor unit firmly with anchor bolt or it may fall and hurt people. (refer to ‘Foundation for installation’)

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12 INSTALLATION SPACE

INSTALLATION SPACE

•The following values are the least space for installation. If any service area is needed for service according to field circumstance, obtain enough service space.

•The unit of values is mm.

In case of obstacles on the suction side

1. Stand alone installation					[Unit:mm]

a

100 or more

	100	or
	more

b

less or 500 or 000 more

<![if ! IE]>

<![endif]>1

c

2. Collective installation

150 or more

less or 500 or 000 more

<![if ! IE]>

<![endif]>1

c 150 or more

less

or

500

<![if ! IE]> <![endif]>000or more

<![if ! IE]> <![endif]>1

1

000

or

more

100

1

or

000

more

c

200

more

or

100

or

more

more

or

c

200

or

more

	ARUN040*SS0, ARUN050*SS0	ARUN100LSS0, ARUN120LSS0
	ARUN060*SS0, ARUN080*SS0	ARUV140LSS0
a	100 or more	200 or more
b	100 or more	300 or more
c	300 or more	350 or more

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INSTALLATION SPACE 13

In case of obstacles on the discharge side

1. Stand alone installation

[Unit:mm]

less or 500

<![if ! IE]>

<![endif]>1 or000more

a

a

2. Collective installation

				less
				or
				500
	100	or		<![if ! IE]> <![endif]>000 or more
	more			<![if ! IE]> <![endif]>1
		more
		or
		000
		1
			100	or
			more
				more
				or
				000
				1
	ARUN040*SS0, ARUN050*SS0		ARUN100LSS0, ARUN120LSS0
	ARUN060*SS0, ARUN080*SS0		ARUV140LSS0
a		500 or more	700 or more

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14 INSTALLATION SPACE

In case of obstacles on the suction and the discharge side

Obstacle height of discharge side is higher than the unit 1. Stand alone installation

[Unit:mm]

L > H L > H

	<![if ! IE]> <![endif]>H
<![if ! IE]> <![endif]>L
	or	<![if ! IE]> <![endif]>L
350
more
a

<![if ! IE]>

<![endif]>H

less or 500

<![if ! IE]>

<![endif]>1 or000more

			350	or
000		or	more
1	more

2. Collective installation
L > H	L > H

<![if ! IE]>

<![endif]>LH

100	or				<![if ! IE]> <![endif]>L
		more			or
				350
			or	more
		000
		1	more

100	or	more

more or 1250

less

<![if ! IE]>

<![endif]>1 000 or more

350	or
more

	ARUN040*SS0, ARUN050*SS0	ARUN100LSS0, ARUN120LSS0
	ARUN060*SS0, ARUN080*SS0	ARUV140LSS0
a	500 or more	700 or more

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INSTALLATION SPACE 15

Obstacle height of discharge side is lower than the unit 1. Stand alone installation

L ≤ H

				<![if ! IE]> <![endif]>H
<![if ! IE]> <![endif]>L
				or
				350
			or	more
000
1			more

[Unit:mm]

L ≤ H

								less
500								or
											<![if ! IE]> <![endif]>000 or more
											<![if ! IE]> <![endif]>1
											<![if ! IE]> <![endif]>H
<![if ! IE]> <![endif]>L											or
										350
								or			more
1000
								more

2. Collective installation L ≤ H

											<![if ! IE]> <![endif]>H
<![if ! IE]> <![endif]>L
		100			or	more					or
										350
								or		more
							1500
								more

L ≤ H

less or 500

<![if ! IE]> <![endif]>L
		100		or	more
								or
					1500
								more

		<![if ! IE]> <![endif]>000 or more
		<![if ! IE]> <![endif]>1
		<![if ! IE]> <![endif]>H
			or
	350
		more

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MFL67798011 2018. 10. 25. 9:51 Page 16

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16 INSTALLATION SPACE

Collective / Continuous Installation for roof top use

Space required for collective installation and continuous installation: When installing several units, leave space between each block as shown below considering passage for air and people.

1. One row of stand alone installation

[Unit:mm]

350	or
more

000		or
2	more

			600	or
000		or	more
1	more

2.Rows of collective installation (2 or more)

•L should be smaller than H

L ≤ H

			100		or
			more
<![if ! IE]> <![endif]>H				or
			600
500		or	more
1	more

000		or
3	more

	<![if ! IE]> <![endif]>L
350	or
more

MFL67798011 2018. 10. 25. 9:51 Page 17

INSTALLATION SPACE 17

Seasonal wind and cautions in winter

•Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well.

•Get ready for seasonal wind or snow in winter even in other areas.

•Install a suction and discharge duct not to let in snow or rain.

•Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.

•Install the outdoor unit at the higher installation console by 50 cm than the average snowfall (annual average snowfall) if it is installed at the area with much snowfall.

•Where snow accumulated on the upper part of the Outdoor Unit by more than 10 cm, always remove snow for operation.

-The height of H frame must be more than 2 times the snowfall and its width shall not exceed the width of the product. (If width of the frame is wider than that of the product, snow may accumulate)

-Don't install the suction hole and discharge hole of the Outdoor Unit facing the seasonal wind.

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MFL67798011 2018. 10. 25. 9:51 Page 18

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18 LIFTING METHOD

LIFTING METHOD

•When carrying the suspended, unit pass the ropes between legs of base panel under the unit.

•Always lift the unit with ropes attached at four points so that impact is not applied to the unit.

•Attach the ropes to the unit at an angle of 40° or less.

•Use only accessories and parts which are of the designated specification when installing.

Air outlet grille	Corner	Intake hole

Sub line

Handle

Always hold the unit by the corners, as holding it by the side intake holes on the casing may cause them to deform.

! CAUTION

Be very careful while carrying the product.

A 40° or less

WARNING

•Do not have only one person carry product if it is more than 20 kg.

•PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.

•Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.

•Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death.

•When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make Outdoor Unit unstable, resulting in a fall.

•Use 2 belts of at least 8 m long.

•Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage.

•Hoist the unit making sure it is being lifted at its center of gravity.

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INSTALLATION 19

INSTALLATION

•Install at places where it can endure the weight and vibration/noise of the outdoor unit.

•The outdoor unit supports at the bottom shall have width of at least 100 mm under the Unit’s legs before being fixed.

•The outdoor unit supports should have minimum height of 200 mm.

•Anchor bolts must be inserted at least 75 mm.

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For outdoor units should not be supported only by the corner supports.

			100mm
			least
			At
	mm
100		mm	Center of the Unit
Atleast		100
	least
At

		mm
	100		mm
least
		100
At
	least
At

mm 100 Atleast

Center of the Unit

The location of the Anchor bolts

	a					[Unit : mm]
e	b	e
					ARUN040*SS0
						ARUN100LSS0
					ARUN050*SS0
					ARUN060*SS0	ARUN120LSS0
					ARUN080*SS0	ARUV140LSS0
		c	d	a	920	1 090
				b	618	700
				c	330	380
				d	360	401
				e	151	195

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20 INSTALLATION

Foundation for Installation

•Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust.

•Use the H-beam support as a base support

•Noise and vibration may occur from the floor or wall since vibration is transferred through the installation part depending on installation status. Thus, use anti-vibration materials (cushion pad) fully (The base pad shall be more than 200 mm).

At least 200 mm

			Unit : mm
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The corner part must be fixed firmly. Otherwise, the support for the installation may be bent.

Get and use M10 Anchor bolt.

Put Cushion Pad between the outdoor unit and ground support for the vibration protection in wide area.

Space for pipes and wiring (Pipes and wirings for bottom side)

H-beam support

Concrete support

!WARNING

•Install where it can sufficiently support the weight of the outdoor unit.

If the support strength is not enough, the outdoor unit may drop and hurt people.

•Install where the outdoor unit may not fall in strong wind or earthquake.

If there is a fault in the supporting conditions, the outdoor unit may fall and hurt people.

•Please take extra cautions on the supporting strength of the ground, water outlet treatment(treatment of the water flowing out of the outdoor unit in operation), and the passages of the pipe and wiring, when making the ground support.

•Do not use tube or pipe for water outlet in the Base pan. Use drainage instead for water outlet. The tube or pipe may freeze and the water may not be drained.

!CAUTION

•Be sure to remove the Pallet(Wood Support) of the bottom side of the outdoor unit Base Pan before fixing the bolt. It may cause the unstable state of the outdoor settlement, and may cause freezing of the heat exchanger resulting in abnormal

operations.

•Be sure to remove the Pallet(Wood Support) of the

bottom side of the outdoor unit before welding.	Pallet(Wood Support)
Not removing Pallet(Wood Support) causes hazard	- Remove before Installation
of fire during welding.

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INSTALLATION 21

Preparation of Piping

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

Cut the pipes and the cable

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

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

-Cut the pipes a little longer than measured distance.

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

Burrs removal

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

-Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.

Flaring work

-Firmly hold copper pipe in a bar with the dimension shown in below table.

-Carry out flaring work with the flaring tool.

Pipe diameter	A inch (mm)
Inch (mm)	Wing nut type	Clutch type
Ø 1/4 (Ø 6.35)
Ø 3/8 (Ø 9.52)	0.04~0.07	0~0.02
Ø 1/2 (Ø 12.7)	(1.1~1.8)	(0~0.5)
Ø 5/8 (Ø 15.88)

Copper		Slanted Uneven Rough
tube	90°

Pipe

Reamer

Point down

<Wing nut type>

Bar

"A"

Copper pipe

<Clutch type>

Check

-Compare the flared work with figure below.

-If flare is noted to be defective, cut off the flared section and do flaring work again.

Smooth all round

Inside is shining without scratches.

= Improper flaring =

Inclined Surface Cracked Uneven

damaged thickness

Even length all round

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22 INSTALLATION

Flare shape and flare nut tightening torque

Precautions when connecting pipes

-See the following table for flare part machining dimensions.

-When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. (Use ester oil or ether oil.)

-See the following table for tightening torque.(Applying too much torque may cause the flares to crack.)

-After all the piping has been connected, use nitrogen to perform a gas leak check.

Pipe size	Tightening torque(N.m)	A(mm)	flare shape
Ø 9.52	38±4	12.8-13.2	90° ±2
			4	±2
			5°
Ø 12.7	55±6	16.2-16.6	A
			R=0.4~0.8
Ø 15.88	75±7	19.3-19.7

!CAUTION

•Always use a charge hose for service port connection.

• After tightening the cap, check that no refrigerant leaks are present.
• When loosening a flare nut, always use two wrenches in	Union
combination, When connecting the piping, always use a spanner and
torque wrench in combination to tighten the flare nut.

• When connecting a flare nut, coat the flare(inner and outer faces) with oil for R410A(PVE) and hand tighten the nut 3 to 4 turns as the initial tightening.

Opening shutoff valve

1 Remove the cap and turn the valve counter clockwise with the hexagon wrench.

2Turn it until the shaft stops.

Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a backseat type. Always use the special tool.

3 Make sure to tighten the cap securely.

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INSTALLATION 23

Closing shutoff valve

1 Remove the cap and turn the valve clockwise with the hexagon wrench.

2 Securely tighten the valve until the shaft contacts the main body seal.

3Make sure to tighten the cap securely.

- For the tightening torque, refer to the table on the below.

Tightening torque

Shutoff		Tightening torque N.m(Turn clockwise to close)
valve size	Shaft(valve body)		Cap(Valve lid)	Service port	Flare nut	Gas line piping attached to unit
Ø 6.35	6±0.6	Hexagonal	29.4±2.9		16±2
Ø 9.52					38±4
		wrench 4 mm				-
Ø 12.7	9±0.9			12.7±2	55±6
Ø 15.88	15±1.5	Hexagonal			75±7
		wrench 6 mm	53.9±5.8
Ø 22.2	30±3	Hexagonal			-	25±3
Ø 25.4		wrench 10 mm

Insulation of shutoff valve

1Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120 °C).

2Precautions in high humidity circumstance:

This air conditioner has been tested according to the "ISO Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23 °C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:

-Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Methylene)-over 120 °C the heat-resistance temperature.

-Add the insulation over 10mm thickness at high humidity environment.

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Fastening band (accessory)

Refrigerant piping

Indoor unit

Thermal insulator (accessory)