LG US30F INSTALLATION MANUAL

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.

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

www.lg.com

MFL71666401

Rev.01_121719

Copyright © 2019 LG Electronics Inc. All Rights Reserved.

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2 MODEL DESIGNATION

MODEL DESIGNATION

Product

information

- Product Name : Air conditioner

- Model Name :

• Indoor Unit for Multi System

M

S

15

SQ

N

B

0

Serial number

Chassis name

Indoor Unit / Outdoor Units

N : Indoor Unit

U : Outdoor Unit

Detailed product type

AQ : Wall mounted Libero-R

AH* : ARTCOOL *=0, 1, 2 (Ex. AH1)

SQ : Wall mounted Libero-E

AW* : ART COOL Mirror *=0, 1, 2 (Ex. AW1)

AH : Ceiling Cassette

AHL : Ceiling Concealed Duct (Low Static)

Nominal Capacity

Ex) 7 000 Btu/h Class → '07',

18 000 Btu/h Class → '18'

Product type

S : Wall mounted / ARTCOOL mirror

B, M, L : Ceiling Concealed Duct

J : Wall mounted

V : Ceiling Suspended & floor

A : ARTCOOL

Q : Console

T : Ceiling Cassette

P : Floor Standing

Connectable Outdoor unit type

M : Indoor units only for Multi systems

• Indoor units only for Single A Systems

• Common Indoor Unit for Multi and Single CAC

C

T

18

F

N

B

0

Serial number

Chassis name

Indoor Unit / Outdoor Units

N : Indoor Unit

U : Outdoor Unit

Detailed product type

L : Low Static

R : Refrigerant R32 / R410A

H : High COP

FH : Free combination High COP

C : Econo

F : Free combination

Nominal Capacity

Ex) 7 000 Btu/h Class → '07',

18 000 Btu/h Class → '18'

Product type

S : Wall mounted / ARTCOOL mirror

B, M, L : Ceiling Concealed Duct

J : Wall mounted

V : Ceiling Suspended & floor

A : ARTCOOL

Q : Console

T : Ceiling Cassette

P : Floor Standing

Connectable Outdoor unit type

U : Indoor units only for Single A systems

C : Common Indoor Unit for Multi and Single CAC

-Additional Information : serial number is refer to the barcode on the product.

-Maximum allowable pressure High side : 4.2 MPa / 4.32 MPa (it can be different by model) Maximum allowable pressure Low side : 2.4 MPa

-Refrigerant : R32

MODEL DESIGNATION 3

Airborne Noise Emission

The A-weighted sound pressure emitted by this product is below 70 dB.

** The noise level can vary depending on the site.

The figures quoted are emission level and are not necessarily safe working levels.

Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further precautions are required.

Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of noise, i.e. the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise. Also, the permissible exposure level can vary from country to country.

This information, however, will enable the user of the equipment to make a better evaluation of the hazard and risk.

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4	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 :

SAFETY INSTRUCTIONS 5

SAFETY INSTRUCTIONS

The following symbols are displayed on indoor and outdoor units.

			Read the precautions in this manual				This appliance is filled with
			carefully before operating the unit.				flammable refrigerant.(for R32)
			This symbol indicates that the				This symbol indicates that a service
							personnel should be handling this
			Operation Manual should be read
							equipment with reference to the
			carefully.
							Installation Manual.

The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance.

The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.

!This symbol is displayed to indicate matters and operations that can cause risk.

Read the part with this symbol carefully and follow the instructions in order to avoid risk.

!WARNING

This indicates that the failure to follow the instructions can cause serious injury or death.

! CAUTION

This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

!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.

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		6	SAFETY INSTRUCTIONS
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		• Compliance with national gas regulations shall be observed.

• Ducts connected to an appliance shall not contain an ignition source. (for R32)

Installation

•Always perform grounding.

-Otherwise, it may cause electrical shock.

•Don’t use a power cord, a plug or a loose socket which is damaged.

-Otherwise, it may cause a fire or electrical shock.

•For installation of the product, always contact the service center or a professional installation agency.

-Otherwise, it may cause a fire, electrical shock, explosion or injury.

•Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit.

-If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

•Always install an air leakage breaker and a dedicated switching board.

-No installation may cause a fire and electrical shock.

•Do not keep or use flammable gases or combustibles near the air conditioner.

-Otherwise, it may cause a fire or the failure of product.

•Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.

-It may cause injury or an accident.

•Do not disassemble or repair the product randomly.

-It will cause a fire or electrical shock.

•Do not install the product at a place that there is concern of falling down.

-Otherwise, it may result in personal injury.

•Use caution when unpacking and installing.

-Sharp edges may cause injury.

•The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).

SAFETY INSTRUCTIONS		7
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• Two or more people must lift and transport the product. Avoid personal injury.

• 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. (for R32)

• Refrigerant tubing shall be protected or enclosed to avoid damage.

• Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage.

• A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts.

• Mechanical connections shall be accessible for maintenance purposes.

• The appliance shall be disconnected from its power source during service and when replacing parts.

• The appliance shall be installed in accordance with national wiring regulations.

Operation

•Do not share the outlet with other appliances.

-It will cause an electric shock or a fire due to heat generation.

•Do not use the damaged power cord.

-Otherwise, it may cause a fire or electrical shock.

•Do not modify or extend the power cord randomly.

-Otherwise, it may cause a fire or electrical shock.

•Take care so that the power cord may not be pulled during operation.

-Otherwise, it may cause a fire or electrical shock.

•Unplug the unit if strange sounds, smell, or smoke comes from it.

-Otherwise, it may cause electrical shock or a fire.

•Keep the flames away.

-Otherwise, it may cause a fire.

		8	SAFETY INSTRUCTIONS
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		• Take the power plug out if necessary, holding the head of the plug

and do not touch it with wet hands.

- Otherwise, it may cause a fire or electrical shock.

• Do not use the power cord near the heating tools.

- Otherwise, it may cause a fire and electrical shock.

• Do not open the suction inlet of the indoor/outdoor unit during operation.

- Otherwise, it may electrical shock and failure.

• Do not allow water to run into electrical parts.

- Otherwise, it may cause the failure of machine or electrical shock.

• Hold the plug by the head when taking it out. - It may cause electric shock and damage.

• Never touch the metal parts of the unit when removing the filter. - They are sharp and may cause injury.

• Do not step on the indoor/outdoor unit and do not put anything on it.

- It may cause an injury through dropping of the unit or falling down.

• Do not place a heavy object on the power cord.

- Otherwise, it may cause a fire or electrical shock.

• When the product is submerged into water, always contact the service center.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that children may not step on the outdoor unit.

- Otherwise, children may be seriously injured due to falling down.

• 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.

• 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.

• Turn off all devices that cause fire when the refrigerant leaks., ventilate the room (example : opening window or using ventilation unit), and contact with dealer who you purchased the unit.

SAFETY INSTRUCTIONS		9
• The installation of pipe-work shall be kept to a minimum.			<![if ! IE]> <![endif]>ENGLISH
• When mechanical connectors are reused indoors, sealing parts
shall be renewed. (for R32)
• When flared joints are reused indoors, the flare part shall be re-
fabricated. (for R32)

! CAUTION

Installation

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

-Otherwise, it may cause water leakage.

•Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.

-Otherwise, it may cause dispute with the neighbors.

•Always inspect gas leakage after the installation and repair of product.

-Otherwise, it may cause the failure of product.

•Keep level parallel in installing the product.

-Otherwise, it may cause vibration or water leakage.

•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 authorises their competence to handle refrigerants safely in accordance with an industry recognized assessment specification. (for R32)

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

•Pipe-work shall be protected from physical damage.

Operation

•Avoid excessive cooling and perform ventilation sometimes.

-Otherwise, it may do harm to your health.

•Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.

-The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.

	10	SAFETY INSTRUCTIONS
<![if ! IE]> <![endif]>ENGLISH	• Do not use an appliance for special purposes such as preserving
	animals vegetables, precision machine, or art articles.
	- Otherwise, it may damage your properties.
	• Do not place obstacles around the flow inlet or outlet.
	- Otherwise, it may cause the failure of appliance or an accident.
	• 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 flammable
	refrigerants. (for R32)
	• Dismantling the unit, treatment of the refrigerant oil and eventual
	parts should be done in accordance with local and national
	standards.
	• Periodic ( more than once/year ) cleaning of the dust or salt
	particles stuck on the heat exchanger by using water.
	• Means for disconnection must be incorporated in the fixed wiring
	in accordance with the wiring rules.
	• 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.
	• 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 appliance 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 11

TABLE OF CONTENTS

2MODEL DESIGNATION

4TIPS FOR SAVING ENERGY

5SAFETY INSTRUCTIONS

12 INTRODUCTION

17 INSTALLATION PLACES

17 Select the best Location

23THE INDOOR UNIT INSTALLATION

24Position of suspension Bolt

28Fixing Installation Plate

29Connecting the Piping

38Open side-cover

39Mounting the anchor nut and bolt

41Indoor Unit Drain Piping

43Drain test

45Wiring Connection

48Electrical Wiring

48Flaring Work

51Test Running

53Heating Only Mode

54SMART DIAGNOSIS (Optional)

55Manual the decor, air filter Assembly & Disassembly

57 INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

61 INSTALLATION INSTRUCTIONS

61Installer Setting - How to enter installer setting mode

62Installer Setting - Installer Setting Code Table

63Installer Setting - Setting Address of Central Control

63Installer Setting - Checking Address of Central Control

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68 DIP SWITCH SETTING

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12 INTRODUCTION

INTRODUCTION

[Ceiling Concealed Duct]

Air inlet vents

Air outlet vents

Remote Controller

(Accessory)

Installation Tool

	Name	Drain hose	Clamp metal	Washer for	Clamp	Insulation for	(Other)
				hanging bracket	(Tie Wrap)	fitting	• Manual
	Quantity	1 EA	2 EA	8 EA	4 EA	1 SET

Shape	for gas pipe
	for liquid pipe

INTRODUCTION 13

[Wall Mounted]

Air filter

Front grille

Signal receiver

Display

On/Off button

	Air outlet
	Air deflector	Plasmaster Ionizer
	(Vertical louver & Horizontal vane)

* The feature can be changed according to type of model.

NOTE

• When mechanical connectors are reused indoors, sealing parts shall be renewed.

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Installation Tool

	Name	Quantity	Shape
	Installation plate	1 EA
			The feature can be changed according to type of model.
	Type "A" screw	5 EA
	Type "B" screw	2 EA
	Type "C" screw	2 EA
	Remote control		Type “B” screw
		1 EA
	holder
	Cloth tape	1 EA
	Connector	1 EA (5.0 kW)	5.0 kW :	Ø9.52 (3/8)	Ø12.7 (1/2)
			6.6 kW :	Ø9.52 (3/8)	Ø12.7 (1/2)
		2 EA (6.6 kW)
				Ø15.88 (5/8)	Ø12.7 (1/2)

(Other) Manual

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14 INTRODUCTION

[Ceiling Cassette]

Anti-bacteria filter

Air Intake

Air Outlet

Wired Remote Controller

(Accessory)

Installation Tool

Name	Drain hose	Clamp metal	Washer for	Clamp	Insulation for
			hanging bracket	(Tie Wrap)	fitting
Quantity	1 EA	2 EA	8 EA	4 EA	1 SET

Shape

for gas pipe

(Other)

•Paper pattern for installation

•Manual

for liquid pipe

• Screws for fixing panels are attached to decoration panel.

INTRODUCTION 15

[Console]

Air filter	Signal receiver
	Operation lamp
	Air purifier lamp
Air outlet	ON/OFF button
	Air inlet
Allergy filter	Remote Controller
	(Accessory)

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Installation Tool

Name	Drain Hose	Installation Plate	Other
Quantity	1 EA	1 EA	- Remote Controller
			- Remote Controller Holder
			- Battery (AAA) - 2 EA
			- Allergy Filter
			- Fixing Screw for R.Controller
Shape			Holder - 2 EA
			- Fixing screw for Installation
			Plate 4*25 mm - 5 EA
			- Wood screw for indoor fixation - 2 EA
			- Manual

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16 INTRODUCTION

[Ceiling suspended type]

Right side cover	Louver
	Air outlet vent
Air filters
(behind inlet grille)	Remote Controller
Air inlet vent	(Accessory)
(inlet grille)
	Left side cover

Installation Tool

Figure	Name	Figure	Name
	Screw driver		Multi-meter
	Electric drill		Hexagonal wrench
	Measuring tape, Knife		Ammeter
	Hole core drill		Gas-leak detector
	Spanner		Thermometer,
			Level
	Torque wrench		Flaring tool set

(Other) Manual

INSTALLATION PLACES 17

INSTALLATION PLACES

Select the best Location

[Ceiling Concealed Duct]

-The place shall easily bear a load exceeding four times the indoor unit’s weight.

-The place shall be able to inspect the unit as the figure.

-The place where the unit shall be leveled.

-The place shall allow easy water drainage.

(Suitable dimension “H” is necessary to get a slope to drain as figure.)

-The place shall easily connect with the outdoor unit.

-The place where the unit is not affected by an electrical noise.

-The place where air circulation in the room will be good .

-There should not be any heat source or steam near the unit.

Ceiling Concealed Duct – Low Static

Ceiling Concealed Duct – Mid Static

Top view	Inspection hole (600 x 600)
		Control box
(unit: mm)
	600	Air outlet	600
	or More		or More

		Inspection hole
	Top view	(600 x 600)
	(unit: mm)	Control box
	600	1 000	600
		or More
	or More		or More

Front

Side view
(unit: mm)	Air outlet
	H = 20 or More

•Suitable dimension "H" is necessary to get a slope to drain as shown in the figure

Front view

H = 20 or More

!CAUTION

•In case that the unit is installed near the sea, the installation parts may be corroded by salt, The installation parts (and the unit) should be taken appropriate anti-corrosion measures.

Inspection Hole Standard

	Number of	Distance between	Remarks
	Inspection hole	False ceiling & Actual ceiling
	1	More than 100 cm	Sufficient space in the ceiling for servicing.
	2	20 cm to 100 cm	Insufficient space. Difficult for servicing
	Hole size should be
	more than the size	Less than 20 cm	Minimum height for motor replacement.
	of IDU.

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18 INSTALLATION PLACES

[Wall Mounted]

-There should not be any heat or steam near the unit.

-Select a place where there are no obstacles around of the unit.

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

-Do not install near a doorway.

-Ensure that the interval between a wall and the left (or right) of the unit is more than 100 mm. The unit should be installed as high as possible on the wall, allowing a minimum of 200 mm from ceiling.

-Use a metal detector to locate studs to prevent unnecessary damage to the wall.

	More Than		More Than
	More Than	More Than	200
	200	500
	More Than		More Than
	100
	More Than	More	500
	2 300
		1 500

(Unit: mm)

* The feature can be changed according to type of model.

NOTE

The gap between the indoor unit and ceiling is needed more than 200 mm for disassemble the air filter.

[Ceiling Cassette]

INSTALLATION PLACES 19

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			<![if ! IE]> <![endif]>10 or more
	Ceiling
					Ceiling Board

Ceiling Board				<![if ! IE]> <![endif]>or less
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			500 or	<![if ! IE]> <![endif]>300
500 or
more			more
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				Unit : mm	<![if ! IE]> <![endif]>800
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		Floor

Chassis	H
TU	3 300
TQ / TR / TP / TP-B	3 600
TN / TM / TM-A	4 200

*Please use an annexed sheet or the corrugated cardboard on the bottom of packing as installation sheet.

	Or
Annexed sheet	Packing corrugated
	cardboard on the
	bottom

*When using the bottom sheet, please use it after separating the installation sheet from packing of the product floor by using a knife etc as a picture below.

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20 INSTALLATION PLACES

[Console]

-There should not be any heat or steam near the unit.

-Select a place where there are no obstacles around of the unit.

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

-Do not install near a doorway.

-Ensure that the interval between a wall and the left (or right) of the unit is more than 300 mm.

-Use a metal detector to locate studs to prevent unnecessary damage to the wall.

-Keep away from electronic ignition type fluorescent lamps as they may shorten the remote controller range.

-Please check at least 1 m away from television or radio.(It cause interference with the picture or sound.)

NOTE

•Before choosing the installation site, please obtain user approval

•If the unit is installed below a window, check the interference of window curtain.(more than 300 mm)

More than 300

More than 300

More than 300

250 or below

from the Floor

(Unit : mm)

INSTALLATION PLACES 21

[Ceiling suspended type]

-There should not be any heat source or steam near the unit.

-There should not be any obstacles to prevent the air circulation.

-A place where air circulation in the room will be good.

-A place where drainage can be easily obtained.

-A place where noise prevention is taken into consideration.

-Do not install the unit near the door way.

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

-The indoor unit must keep the maintenance space.

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10 (13/32) or more

300 (11 – 13/16) or more

2 500 (98 – 3/7) or more

Floor

700(27 – 9/16) or more

700(27 – 9/16) or more

(Unit : mm)