LG CT24R INSTALLATION INSTRUCTIONS

INSTALLATION MANUAL

AIR
CONDITIONER

[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

MFL67855536

Rev.02_040319

Copyright © 2016 - 2019 LG Electronics Inc. All Rights Reserved.

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.

CEILING CASSETTE
Original instruction

www.lg.com

РУССКИЙ ЯЗЫК

ENGLISH

УКРАÏНСЬКА

ITALIANO ESPAÑOL

ҚАЗАҚ ТІЛІ

БЕЛАРУСКАЯ МОВА

FRANÇAIS DEUTSCH

OʻZBEK TILI

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

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ENGLISH

MODEL DESIGNATION

MODEL DESIGNATION

Product information

- Product Name : Air conditioner

- Model Name :

SQSM N B 015

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

- Max allowable pressure High side :

4.2 MPa / 4.32 MPa (it can be different by
model)

- Max allowable pressure Low side :

2.4 MPa

- Refrigerant : R32 / R410A

Serial number

Chassis name

Indoor Unit / Outdoor Units

N : Indoor Unit
U : Outdoor Unit

Detailed product type only
for M- series models

AQ : Wall mounted Libero-R
SQ : Wall mounted Libero-E
AH* : ARTCOOL
AW* : ART COOL Mirror
AH : Ceiling Cassette
AHL : Ceiling Concealed Duct
(Low Static)
R : Refrigerant R32/R410A
PC : Standard plus (S)

Detailed product type for
U- / C- series models

L : Low Static
H : High COP
C : Econo
R : Refrigerant R32 / R410A

Nominal Capacity

Ex) 7 000 Btu/h Class → '07',
18 000 Btu/h Class → '18'

Product type

S : Wall mounted /
ARTCOOL mirror
J : Wall mounted
A : ARTCOOL
T : Ceiling Cassette
B, M : Ceiling Concealed Duct
V : Ceiling Suspended & floor
Q : Console
P : Floor Standing

Connectable Outdoor unit type

M : Indoor units only for

Multi systems

U : Indoor units only for

Single A systems

C : Common Indoor Unit for

Multi and Single CAC

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.

Limiting concentration

Limiting concentration is the limit of Freon gas
concentration where immediate measures can
be taken without hurting human body when
refrigerant leaks in the air. The limiting
concentration shall be described in the unit of
kg/m3(Freon gas weight per unit air volume)
for facilitating calculation

Limiting concentration: 0.44 kg/m3(R410A)

n Calculate refrigerant concentration

Refrigerant

concentration

(kg/m3)

Total amount of replenished
refrigerant in refrigerant facility (kg)

=

Capacity of smallest room where
indoor unit is installed (m3)

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.

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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 :

IMPORTANT SAFETY INSTRUCTIONS

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IMPORTANT SAFETY INSTRUCTIONS

The following symbols are displayed on indoor and outdoor units.

Read the precautions in this manual
carefully before operating the unit.

This symbol indicates that the
Operation Manual should be read
carefully.

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

!

This appliance is filled with
flammable refrigerant (R32)

This symbol indicates that a service
personnel should be handling this
equipment with reference to the
Installation Manual.

• 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.

• Compliance with national gas regulations shall be observed.

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.

IMPORTANT SAFETY INSTRUCTIONS

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• 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 ignition sources
(for example: open flames, an operating gas appliance or an operating
electric heater.)

• 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.

IMPORTANT SAFETY INSTRUCTIONS

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• 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 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.

• 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.

IMPORTANT SAFETY INSTRUCTIONS

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• 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.

• The installation of pipe-work shall be kept to a minimum.

• When mechanical connectors are reused indoors, sealing parts shall
be renewed.(for R32)

• When flared joints are reused indoors, the flare part shall be re­fabricated.(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

IMPORTANT SAFETY INSTRUCTIONS

8

ENGLISH

industry-accredited assessment authority, which authorises their
competence to handle refrigerants safely in accordance with an
industry recognised 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.

• 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.

TABLE OF CONTENTS

TABLE OF CONTENTS

2 MODEL DESIGNATION

3 TIPS FOR SAVING ENERGY

4 IMPORTANT SAFETY INSTRUCTIONS

10 INSTALLATION PLACES

12 THE INDOOR UNIT INSTALLATION

13 Indoor Unit Drain Piping
14 Wiring Connection
16 Flaring Work

19 REMOTE CONTROLLER INSTALLATION

21 Wired remote controller installation

22 INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

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24 TEST RUNNING

25 OPTIONAL OPERATION

25 Installer Setting - Test Run Mode
26 Installer Setting - Setting Address of Central Control
27 Installer Setting - Thermistor
28 Installer Setting - Ceiling Height Selection
29 Installer Setting - Group Setting
30 Installer Setting -Dry Contact Mode Setting
31 Installer Setting - Celsius / Fahrenheit Switching
32 Installer Setting - Optional Function Setting
33 Installer Setting - Remote controller Mode Lock

34 HOW TO SET E.S.P?

INSTALLATION PLACES

Annexed sheet

Or

Packing corrugated

cardboard on the

bottom

10

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INSTALLATION PLACES

- 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.

10 or

Ceiling

Ceiling Board

more

Ceiling Board

500 or
more

* Please use an annexed sheet or the

corrugated cardboard on the bottom of
packing as installation sheet.

500 or

1 000

or more

Chassis

H

Floor

more

H

TU 3 300

TQ/TR/TP 3 600

TN/TM 4 200

* 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.

Unit : mm

300 or less

At least 1 800

H or less

INSTALLATION PLACES

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Minimum floor area

(for R32)

- The appliance shall be installed, operated and stored in a room with a floor area larger than the
minimum area.

- Use the graph of table to determine the minimum area.

Amin (m2)

- m : Total refrigerant amount in the system

- Total refrigerant amount : factory refrigerant charge + additional refrigerant amount

- Amin : minimum area for installation

600

500

400

300

200

100

0

Floor location

m (kg) Amin (m

< 1.224

1.224

12.9

1.4 16.82

1.6 21.97

1.8 27.80
2 34.32

2.2 41.53

2.4 49.42

2.6 58.00

2.8 67.27
3 77.22

3.2 87.86

3.4 99.19

3.6 111.20

3.8 123.90
4 137.29

4.2 151.36

4.4 166.12

0 1.224 2 3 4 5 6 7 8

2

)

-

Floor location

m (kg) Amin (m

4.6 181.56

4.8 197.70
5 214.51

5.2 232.02

5.4 250.21

5.6 269.09

5.8 288.65
6 308.90

6.2 329.84

6.4 351.46

6.6 373.77

6.8 396.76
7 420.45

7.2 444.81

7.4 469.87

7.6 495.61

7.8 522.04

2

)

Wall mounted

m (kg) Amin (m

< 1.224

1.224

1.43

1.4 1.87

1.6 2.44

1.8 3.09
2 3.81

2.2 4.61

2.4 5.49

2.6 6.44

2.8 7.47
3 8.58

3.2 9.76

3.4 11.02

3.6 12.36

3.8 13.77
4 15.25

4.2 16.82

4.4 18.46

2

)

-

Wall mounted

m (kg) Amin (m

4.6 20.17

4.8 21.97
5 23.83

5.2 25.78

5.4 27.80

5.6 29.90

5.8 32.07
6 34.32

6.2 36.65

6.4 39.05

6.6 41.53

6.8 44.08
7 46.72

7.2 49.42

7.4 52.21

7.6 55.07

7.8 58.00

2

)

Ceiling Mounted

m (kg) Amin (m

< 1.224

1.224

0.956

1.4 1.25

1.6 1.63

1.8 2.07
2 2.55

2.2 3.09

2.4 3.68

2.6 4.31

2.8 5.00
3 5.74

3.2 6.54

3.4 7.38

3.6 8.27

3.8 9.22
4 10.21

4.2 11.26

4.4 12.36

2

)

-

Floor standing

Wall mounted

Ceiling mounted

m (kg)

Ceiling Mounted

m (kg) Amin (m

4.6 13.50

4.8 14.70
5 15.96

5.2 17.26

5.4 18.61

5.6 20.01

5.8 21.47
6 22.98

6.2 24.53

6.4 26.14

6.6 27.80

6.8 29.51
7 31.27

7.2 33.09

7.4 34.95

7.6 36.86

7.8 38.83

2

)

THE INDOOR UNIT INSTALLATION

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THE INDOOR UNIT INSTALLATION

TP/TN/TM Series

875(Ceiling opening)

787(Hanging bolt)

840 Unit size

671

523

Ceiling

840 Unit size

TQ/TR Series

585~660

517

570

570

319

Level gauge

Ceiling board

(Hanging bolt)

684

Unit:mm

517

875(Ceiling opening)

585~660

CAUTION

!

• This air-conditioner uses a
drain pump.

• Install the unit horizontally
using a level gauge.

• During the installation, care
should be taken not to damage
electric wires.

NOTE

!

Avoid the following installation location.

1

Such places as restaurants and kitchen
where considerable amount of oil steam
and flour is generated. These may cause
heat exchange efficiency reduction, or
water drops, drain pump mal-function. In
these cases, take the following actions;

-

Make sure that ventilation fan is enough to
cover all noxious gases from this place.

- Ensure enough distance from the cooking
room to install the air conditioner in such a
place where it may not suck oily steam.

Air conditioner

1 065

965

448

Unit:mm

50

354

466

400 4040

600

306

461

TU Chassis

50

860

250

- Select and mark the position for fixing bolts
and piping hole.

- Decide the position for fixing bolts slightly
tilted to the drain direction after considering
the direction of drain hose.

- Drill the hole for anchor bolt on the wall.

Take enough
distance

Cooking table

Use the ventilation fan
for smoke-collecting
hood with sufficient
capacity.

2 Avoid installng air conditioner in such

places where cooking oil or iron powder is
generated.

3 Avoid places where inflammable gas is

generated.

4 Avoid place where noxious gas is

generated.

5 Avoid places near high frequency

generators.