LG US30F INSTALLATION MANUAL

INSTALLATION MANUAL

AIR CONDITIONER

www.lg.com

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

MFL71666401

Rev.01_121719

[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

ENGLISH

ITALIANO ESPAÑOL

FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

MODEL DESIGNATION

ENGLISH

MODEL DESIGNATION

Product information

- Product Name : Air conditioner

- Model Name :

• Indoor Unit for Multi System

SQSM N B 015

• Indoor units only for Single A Systems

• Common Indoor Unit for Multi and Single CAC

FTCNB018

Serial number

Chassis name Indoor Unit / Outdoor Units

N : Indoor Unit U : Outdoor Unit

Detailed product type

AQ : Wall mounted Libero-R SQ : Wall mounted Libero-E AH : Ceiling Cassette

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

Connectable Outdoor unit type

M : Indoor units only for Multi systems

Serial number

Chassis name Indoor Unit / Outdoor Units

N : Indoor Unit U : Outdoor Unit

Detailed product type

L : Low Static H : High COP C : Econo

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

Connectable Outdoor unit type

U : Indoor units only for Single A systems C : Common Indoor Unit for Multi and Single CAC

AH* : ARTCOOL *=0, 1, 2 (Ex . AH1) AW* : ART COOL Mirror *=0, 1, 2 (Ex. AW1) AHL : Ceiling Concealed Duct (Low Static)

B, M, L : Ceiling Concealed Duct V : Ceiling Suspended & ﬂoor Q : Console P : Floor Standing

R : Refrigerant R32 / R410A FH : Free combination High COP F : Free combination

B, M, L : Ceiling Concealed Duct V : Ceiling Suspended & ﬂoor Q : Console P : Floor Standing

- 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

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.

ENGLISH

TIPS FOR SAVING ENERGY

ENGLISH

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

The following symbols are displayed on indoor and outdoor units.

SAFETY INSTRUCTIONS

ENGLISH

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

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

This appliance is filled with flammable refrigerant.(for R32)

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

SAFETY INSTRUCTIONS

ENGLISH

• 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

• 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.

ENGLISH

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.

SAFETY INSTRUCTIONS

ENGLISH

• 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

• 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 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.

ENGLISH

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.

SAFETY INSTRUCTIONS

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

2 MODEL DESIGNATION

4 TIPS FOR SAVING ENERGY

5 SAFETY INSTRUCTIONS

12 INTRODUCTION

17 INSTALLATION PLACES

17 Select the best Location

23 THE INDOOR UNIT INSTALLATION

24 Position of suspension Bolt 28 Fixing Installation Plate 29 Connecting the Piping 38 Open side-cover 39 Mounting the anchor nut and bolt 41 Indoor Unit Drain Piping 43 Drain test 45 Wiring Connection 48 Electrical Wiring 48 Flaring Work 51 Test Running 53 Heating Only Mode 54 SMART DIAGNOSIS (Optional) 55 Manual the decor, air ﬁlter Assembly & Disassembly

TABLE OF CONTENTS

ENGLISH

57 INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

61 INSTALLATION INSTRUCTIONS

61 Installer Setting - How to enter installer setting mode 62 Installer Setting - Installer Setting Code Table 63 Installer Setting - Setting Address of Central Control 63 Installer Setting - Checking Address of Central Control

68 DIP SWITCH SETTING

INTRODUCTION

ENGLISH

INTRODUCTION

[Ceiling Concealed Duct]

Air outlet vents

Air inlet vents

Remote Controller (Accessory)

Installation Tool

Name Drain hose Clamp metal

Quantity

Shape

1 EA 2 EA 8 EA 4 EA 1 SET

Washer for

hanging bracket

Clamp

(Tie Wrap)

Insulation for

fitting

for gas pipe

for liquid pipe

(Other)

• Manual

[Wall Mounted]

Name

Quantity Shape

Installation plate

1 EA

Cloth tape

Connector

1 EA

Type "A" screw

5 EA

Type "B" screw

2 EA

Type "C" screw

2 EA

Remote control

holder

1 EA

1 EA (5.0 kW)

2 EA (6.6 kW)

The feature can be changed according to type of model.

Type “B” screw

5.0 kW : ڸØ9.52 (3/8) ơ Ø12.7 (1/2)

6.6 kW : ڸØ9.52 (3/8) ơ Ø12.7 (1/2) ڹØ15.88 (5/8) ơ Ø12.7 (1/2)

Air outlet

Air ﬁlter

INTRODUCTION

Front grille Signal receiver Display

On/Off button

ENGLISH

(Vertical louver & Horizontal vane)

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

Air deﬂector

NOTE

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

Installation Tool

Plasmaster Ionizer

(Other) Manual

INTRODUCTION

ENGLISH

[Ceiling Cassette]

Installation Tool

Name

Quantity

Air Outlet

Drain hose

1 EA

Clamp metal

2 EA

Air Intake

Wired Remote Controller

(Accessory)

Washer for

hanging bracket

8 EA

Clamp

(Tie Wrap)

4 EA

Anti-bacteria ﬁlter

Insulation for

ﬁtting

1 SET

(Other)

Shape

• Screws for fixing panels are attached to decoration panel.

• Paper pattern for installation

• Manual

for gas pipe

for liquid pipe

Name

Quantity

Shape

- Remote Controller

- Remote Controller Holder

- Battery (AAA) - 2 EA

- Allergy Filter

- Fixing Screw for R.Controller Holder - 2 EA

- Fixing screw for Installation Plate 4*25 mm - 5 EA

- Wood screw for indoor ﬁxation - 2 EA

- Manual

Installation Plate

1 EA

Other

Drain Hose

1 EA

[Console]

INTRODUCTION

ENGLISH

Air ﬁlter

Air outlet

Allergy ﬁlter

Installation Tool

Signal receiver Operation lamp

Air puriﬁer lamp

ON/OFF button

Air inlet

Remote Controller

(Accessory)

INTRODUCTION

ENGLISH

[Ceiling suspended type]

Right side cover

Air ﬁlters (behind inlet grille)

Air inlet vent (inlet grille)

Installation Tool

Figure FigureName

Louver

Screw driver

Electric drill

Air outlet vent

Remote Controller

(Accessory)

Left side cover

Name

Multi-meter

Hexagonal wrench

(Other) Manual

Measuring tape, Knife

Hole core drill

Spanner

Torque wrench

Ammeter

Gas-leak detector

Thermometer,

Level

Flaring tool set

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

(unit: mm)

Inspection hole (600 x 600)

Control box

Top view

(unit: mm)

Inspection hole

(600 x 600)

Control box

ENGLISH

600

or More

Side view

(unit: mm)

• Suitable dimension "H" is necessary to get a slope

to drain as shown in the figure

CAUTION

Air outlet

600

or More

= 20 or More

Air outlet

Front view

600

or More

1 000

or More

Front

= 20 or More

• 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

Inspection hole

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

of IDU.

Distance between

False ceiling & Actual ceiling

Remarks

Less than 20 cm Minimum height for motor replacement.

600

or More

INSTALLATION PLACES

More Than

200

More Than

100

More Than

100

More Than

2 300

More Than

500

More Than

500

More Than

200

More Than

1 500

ENGLISH

[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.

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

(Unit: mm)

NOTE

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

[Ceiling Cassette]

Annexed sheet

Packing corrugated

cardboard on the

bottom

Ceiling

Ceiling Board

10 or

INSTALLATION PLACES

Ceiling Board

ENGLISH

500 or more

1 000

or more

Floor

500 or more

Unit : mm

300 or less

At least 1 800

H or less

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.

* 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.

INSTALLATION PLACES

ENGLISH

[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

250 or below from the Floor

More than

300

(Unit : mm)

INSTALLATION PLACES

700(27 – 9/16) or more 700(27 – 9/16) or more

2 500 (98 – 3/7) or more

Floor

10 (13/32) or more

300 (11 – 13/16) or more

(Unit : mm)

[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.

ENGLISH

100

200

300

400

500

600

Amin (m2)

m (kg)

0 1.224 2 3 4 5 6 7 8

Floor standing

Wall mounted Ceiling mounted

INSTALLATION PLACES

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.

- m : Total refrigerant amount in the system

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

- Amin : minimum area for installation

Floor standing

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

)

Floor standing

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

)

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

)

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

)

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

)

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

)

THE INDOOR UNIT INSTALLATION

Air conditioner

Take enough distance

Cooking table

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

ENGLISH

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.

• 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 ceiling or wall.

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.

2. Avoid installing 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.

Install the unit leaning to a drainage hole side as a figure for easy water drainage.

Drainage hole

Inspection Port

Indoor Unit

Ceiling

Canvas Duct

Air Intake Port

Ceiling Board

Air Discharge Port

Discharge Flexible Duct

Intake Duct

Inspection Port

Indoor Unit

Ceiling

Canvas Duct

Air Intake Port

Ceiling Board

Air Discharge Port

Discharge Flexible Duct

Intake Duct

ENGLISH

THE INDOOR UNIT INSTALLATION

Position of suspension Bolt

- Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.

- Apply a filter Accessory at air return hole.

[Ceiling Concealed Duct – Low Static]

(Unit: mm)

[Ceiling Concealed Duct – Mid Static]

(Unit: mm)

Dimension

Chassis

Mid

Static

A B C D E F G H I J

M1 933.4 971.6 619.2 700 30 270 15.2 858 201.4 900 M2 1 283.41 321.6 619.2 689.6 30 270 15.2 1 208 201.4 1 250 M3 1 283.41 321.6 619.2 689.6 30 360 15.2 1 208 291.4 1 250

Dimension

A B C D E F G H I J

Chassis

L1 733 772 628 700 36 190 20 660 155 700 L2 933 972 628 700 36 190 20 860 155 900 L3 1133 1172 628 700 36 190 20 1060 155 1100

Low

Static

L4 733 772 338 460 36 190 20 660 148 700 L5 933 972 338 460 36 190 20 860 148 900 L6 1133 1172 338 460 36 190 20 1060 148 1100

THE INDOOR UNIT INSTALLATION

1 Set anchor

Old building New building

2 Plate washer 3 Spring washer

4 Nut 5 Suspension

bolts

ENGLISH

- A place where the unit will be leveled and that can support the weight of the unit.

- A place where the unit can withstand its vibration.

- A place where service can be easily performed.

M10 Nut M10 SP. washer M10 washer

M10 washer M10 SP. washer M10 Nut

- Select and mark the position for fixing bolts.

- Drill the hole for set anchor on the face of ceiling.

X 4 X 4 X 4

(Local supply)

- Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling.

- Mount the suspension bolts to the set anchor firmly.

- Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, washers and spring washers.

• Local supply

① Set anchor ② Plate washer - M10 ③ Spring washer - M10 ④ Nut - W3/8 or M10 ⑤ Suspension bolt - W3/8 or M10

CAUTION

• Tighten the nut and bolt to prevent unit falling.

CAUTION

1. Install declination of the indoor unit is

very important for the drain of the duct type air conditioner.

2. Minimum thickness of the insulation for

the connecting pipe shall be 10 mm.

ENGLISH

THE INDOOR UNIT INSTALLATION

Front of view

- The unit must be horizontal or declined to the drain hose connected when finished installation.

Ceiling

Drain Pump use

Drainage hole

Ceiling Concealed Duct – Low static

- The unit must be declined to the drain hose connected when finished installation.

CORRECT

5~10 mm

Drainage hole

INCORRECT

[Ceiling Cassette]

Ceiling

TP/TN/TM Series

875(Ceiling opening)

787(Hanging bolt)

840 Unit size

671

TQ/TR Series

585~660

517

840 Unit size

Level gauge

Ceiling board

(Hanging bolt)

684

875(Ceiling opening)

Unit:mm

Drainage hole

Ceiling Concealed Duct – Mid static

400 4040

523

600

306

250

570

319

461

TU Chassis

1 065

860

965

448

517

585~660

Unit:mm

354

466

THE INDOOR UNIT INSTALLATION

Flat washer for M10 (accessory)

Hanging bolt

(W3/8 or M10)

Nut (W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Set screw of paper model (4 pieces)

Paper model for installation

Ceiling board

150 mm

Ceiling board

Ceiling

Keep the length of the bolt from the bracket to 40 mm

Open the ceiling board along the outer edge of the paper model

Air Conditioner body

Keep the length of 15~18 mm between the air conditioner bottom surface and the ceiling surface

Adjust the same height

Set screw of paper model (4 pieces)

Paper model for installation

70 mm

Adjust the same height

Ceiling board

Ceiling

Keep the length of the bolt from the bracket to 40 mm

Open the ceiling board along the outer edge of the paper model

Air conditioner body

Keep the length of 20~22 mm between the air conditioner bottom surface and the ceiling surface

4Way

1Way

Ceiling boardCeiling boardCeiling board

ENGLISH

The following parts is option.

① Hanging Bolt - W 3/8 or M10 ② Nut - W 3/8 or M10 ③ Spring Washer - M10 ④ Plate Washer - M10

Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole-core drill.

CAUTION

Tighten the nut and bolt to prevent unit falling.

Wall

Indoor

Outdoor

5~7 mm

160

213

Framework of Indoor Unit

(Unit: mm)

131

C Type: 494 C Type: 504

Place a level on raised tab

Unit Outline

C Type: 134

Measuring Tape

Ø 65

Measuring Tape

Hanger

Ø 65

C Type: 150

(Unit : mm)

Right rear piping

Left rear piping

(Unit : mm)

194152

Ø 65

Right rear piping

Left rear piping

Ø 65

C Type : 134C Type : 98

C Type

C Type : 418 C Type : 418

Place a level on raised tab

Unit Outline

Installation Plate

ENGLISH

THE INDOOR UNIT INSTALLATION

Fixing Installation Plate

[Wall Mounted]

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 Horizontal meter.

SK/SJ Chassis

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.

SK/SJ Chassis

SR Chassis

THE INDOOR UNIT INSTALLATION

ENGLISH

Connecting the Piping

1 Pull the cover at the bottom of the indoor

unit. Pull the cover ①→②.

2 Remove the cover from the indoor unit.

3 Pull back the tubing holder. 4 Remove pipe port cover and positioning

the tubing

Indoor unit back side view

Right

Tubing holder

Left

Backwards

Assembly of chassis cover

1 Insert 4 hooks of the chassis cover into

gap of the chassis certainly.

2 Push the 6 point hook to assemble chassis

cover. Push the chassis cover ①→②.

* The feature can be changed according to

type of model.

NOTE

To protect the chassis cover bended, assembly chassis cover correctly.

ENGLISH

THE INDOOR UNIT INSTALLATION

Good case

- Press on the tubing cover and unfold the tubing to downward slowly. And then bend to the left side slowly.

* The feature can be changed according to

type of model.

Bad case

- Following bending case from right to left

directly may cause damage to the tubing.

NOTE

Installation Information. For right piping. Follow the instruction above.

Installation of Indoor Unit

1 Hook the indoor unit onto the upper

portion of the installation plate.( engage the three hooks at the top of the indoor unit with the upper edge of the installation plate) Ensure that the hooks are properly seated on the installation plate by moving it left and right

Installation plate

2 Unlock the tubing holder from the chassis

and mount between the chassis and installation plate in order to separate the bottom side of the indoor unit from the wall.

* The feature can be changed according to

type of model.

Tubing Holder

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

THE INDOOR UNIT INSTALLATION

ENGLISH

Piping

1 Insert the connecting cable through the

bottom side of indoor unit and connect the cable (You can see detail contents in 'Connecting the cables' section)

View

1(L) 2(N) 3(C)

Slide up the metal plate cover

Terminal block

Connecting cable

Cable retainer

1(L) 2(N) 3(C)

View

Connecting cable

Slide up the metal plate cover

Terminal block

Connecting cable

Cable retainer

Tape

Drain hose

Connecting pipe

Drain hose

Tape

Connecting cable

Drain hose

Connecting pipe

2 Secure the cable onto the control board

with the cable retainer.

3 Tape the tubing pipe, drain hose and the

connection cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the upper side can cause overflow from the drain pan through the inside of the unit.

ENGLISH

THE INDOOR UNIT INSTALLATION

Finishing the indoor unit installation

1 Mount the tubing holder in the original

position.

2 Ensure that the hooks are properly seated

on the installation plate by moving it left and right.

3 Press the lower left and right sides of the

unit against the installation plate until the hooks engage into their slots (clicking sound).

4 Finish the assembly by screwing the unit

to the installation plate by using two pieces of type "C" screws. And assemble a chassis cover.

[Console]

Preparation / Removing front panel

1 Open the front grille by pulling forward 2 Then pull out the link of grille from groove

in front panel.

3 Then pull out 2 hinges of grille from

grooves in front panel.

4 Then remove 4 screws, dismount the front

panel while pulling it forward.

Type 'C' screw

* The feature can be changed according to

type of model.

CAUTION

The indoor unit can be dropped from the wall, the indoor unit is not screwed correct position on the install plate.

To avoid the gap between the indoor unit and wall , screw the indoor unit to the install plate correctly.

THE INDOOR UNIT INSTALLATION

Remove

Upper Deco cover

Side

Deco cover

90 75

Left bottom piping

Right bottom piping

Left/right piping

Right back piping

Wall

Left back piping

Right back piping

ENGLISH

Preparation / For Moldings , Side Piping, and Concealed Installation

For Moldings

1 Remove the slit portions on the Rear

Panel.

For Concealed Installation

1 Remove the 6 screws. 2 Remove the Upper Deco cover. 3 Remove the Side Deco covers.

Refrigerant Piping

1 The location of hole is different depending

on which side of the pipe is taken out.

2 Drill a hole (Ø 70 mm)in the point indicated

by symbol in the illustration as below

(Unit: mm)

For Side Piping

1 Remove the Deco Covers. 2 Remove the slit portions 3 Assemble the Deco Covers.

NOTE

The suggested shortest pipe length is 5 m, in order to avoid noise from the outdoor unit and vibration.

THE INDOOR UNIT INSTALLATION

600

Ø17

103

Installation Plate

Molding

4 screw (M*25L)

6 screw (M*25L)

159

(700)

647

180

140

(600)

574

170

210

30.5

140

160

ENGLISH

1 The Outer diameter of Drain Hose (which is supplied with indoor unit) is 17 mm at connecting

end, 600 mm long.

2 Use commercial rigid PVC pipe for extension. 3 Insulate the indoor drain pipe with 10 mm or more of insulation material to prevent

condensation.

(Unit: mm)

NOTE

The drain pipe should be inclined downward so that water will flow smoothly without any accumulation.

Installing Indoor unit

Installation on the Floor

1 Fix up using 6 screws for floor installation.

(Unit: mm)

Installation on the Wall

1 Fix up the installation plate using 5 screws and the indoor unit using 4 screws. 2 The installation plate should be fixed on a wall which can support the weight of the indoor

unit.

Half concealed installation.

647

170

140

170

140

Screw hole

Fixing point on the back

Supplemental plate (Field supply)

Opening hole

Wall

Left bottom piping

Left piping

Right bottom piping

1 Make a wall hole of the size shown Fig-1.

Wall

670

Hole

Supplemental plate (Field supply)

THE INDOOR UNIT INSTALLATION

(Unit: mm)

Supplemental plate (Field supply)

ENGLISH

200

585

150

Installation of supplemental plate for attaching main unit.

1) Normal concealed 2) Deep concealed

200

150

• The rear of the unit can be fixed with screws at the points shown in the Fig-2. Be sure to install the supplemental plate in accordance with the depth of the inner wall.

(Unit: mm)

Piping Hole

(Unit: mm)

THE INDOOR UNIT INSTALLATION

ENGLISH

4 Remove the Deco Covers and Fixing Indoor Unit

1) Remove the Deco Covers.

2) Insert the Indoor Unit to the Wall hole.

3) Secure using 6 screws. (shown in the illustration)

NOTE

Check the horizon of Indoor unit with the wall. Please use the Leveler on the drain pan guide.

Leveler

Drain pan

Less than 5 mm

Less than 5 mm Less than 5 mm

THE INDOOR UNIT INSTALLATION

Connecting the Piping

When you connect the refrigerant pipe, it is easier that you connect the gas pipe first.

1 Hold up the Sensor Link. 2 Separate the Pipe Bracket (2 screws) 3 Connect the refrigerant pipe. 4 Assemble the Pipe Bracket (2 screws) 5 Put down the Sensor Link

ENGLISH

6 After connecting, check the pipe arrangement as per illustration. 7 The piping can be arranged in six ways as shown in the illustration below.

Pipe Guide

Connecting Pipe

Pipe Guide

Connecting Pipe must be placed inner than the pipe guide.

Backside

Right side cover

Backside

Left side cover

ENGLISH

THE INDOOR UNIT INSTALLATION

Open side-cover

[Ceiling suspended type]

Step 1

- Remove two screws from side-cover.

Step 2

Step 4

- Knock out the pipe hole from the left sidecover with nipper/plier.

CAUTION

Hold the side-cover with other hand while tapping to prevent it to fall down.

- Unlock side-cover from side-panel slightly (Tap the side-cover with your palm on the backside)

Step 3

- Remove paper bracket from side-cover.

THE INDOOR UNIT INSTALLATION

Washer

Suspension

bolts

Suspension bol

ENGLISH

Mounting the anchor nut and bolt

- Prepare 4 suspension bolts. (Each bolts length should be same.)

- Measure and mark the position for the Suspension bolts and the piping hole.

- Drill the hole for anchor nut on the ceiling.

- Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceiling.

- Mount the suspension bolts to the anchornuts firmly.

- Secure the hangers onto the Suspension bolts (adjust level roughly.) using nuts, washers and spring washers.

- Adjust a level with a level gauge on the direction of left-right, back-forth by adjusting suspension bolts.

- Adjust a level on the direction of top-bottom by adjusting suspension bolts. Then the unit will be declined to the bottomside so as to drain well.

(Unit : mm)

Model (kBtu/h) A B

18 k/24 k 1 018

36 k/42 k/48 k/60 k 1 418

355

Anchor nut

Ceiling

Nut

Suspension

bolts

Installation information for declination

- Install declination of the indoor unit is very important for the drain of the convertible type air conditioner.

- Minimum thickness of the insulation for the connecting pipe shall be 10 mm.

- If the Installation Plates are fixed to horizontal line, the indoor unit after installing will be declined to the bottomside.

Washer

Suspension bol

Hangen

CAUTION

Suspension

bolts

Spring

washer

Max.

12 mm

Nut

Washer

THE INDOOR UNIT INSTALLATION

Ceiling

10~20 mm

Ceiling

5~10 mm

ENGLISH

Front of view

- The unit must be horizontal or inclined at angle.

- The inclination should be less than or equal to 1° or in between 10 to 20 mm inclined in drain direction as shown in fig.

Side of view

- The unit must be inclined to the bottomside of the unit when finished installation.

THE INDOOR UNIT INSTALLATION

Maintenance drain port

Upward routing not allowed

Pipe clamp

Indoor unit

700 or less

1 -1.5 m

Clamp metal(attached) Drain hose(attached)

Drain raising pipe

300 mm or less300 mm or less300 mm or less

ENGLISH

Indoor Unit Drain Piping

[Ceiling Concealed Duct / Cassette]

- Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow.

- During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.

- The outside diameter of the drain connection on the indoor unit is 32 mm.

Piping material: Polyvinyl chloride pipe VP25 and pipe fittings

- Be sure to execute heat insulation on the drain piping.

- Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit.

Drain test The air conditioner uses a drain pump to

drain water. Use the following procedure to test the drain pump operation:

- Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end.

- Feed water to the flexible drain hose and check the piping for leakage.

- Be sure to check the drain pump for normal operating and noise when electrical wiring is complete.

- When the test is complete, connect the flexible drain hose to the drain port on the indoor unit.

Feed water

Flexible drain hose (accessory)

Main drain pipe

Drain

Drain Pump

Glue the joint

port

Drain hose connection Use the clip (accessory)

Drain pan

CAUTION

The supplied flexible drain hose should not be curved, neither screwed. The curved or screwed hose may cause a leakage of water.

Heat insulation material: Polyethylene foam with thickness more than 8 mm.

Max 300 mm

Metal clamp

Flexible drain hose

Insulation

Hanger

distance

1~1.5 m

Hanger Bracket

1/50~1/100 slope

Max 700 mm

Do not raise

Water leakage

Tip of drain hose dipped in water

Water leakage

Ditch

Less than 50 mm gap

Accumulated drain water

Air

Waving

Water leakage

Downward slope

ENGLISH

THE INDOOR UNIT INSTALLATION

[Wall Mounted]

To check the drainage

1 Pour a glass of water on the evaporator. 2 Ensure the water flows through the drain

hose of the indoor unit without any leakage and goes out the drain exit.

Connecting area

drain hose

Leakage

checking

Drain pan

Drain hose

Leakage

checking

* The feature can be changed according to

type of model.

Drain piping

1 The drain hose should point downward for

easy drain flow.

2 Do not make drain piping like the

following.

* The feature can be changed according to

type of model.

Evaluation of the performance

Operate the unit for 15~20 minutes, then check the system refrigerant charge:

1 Measure the pressure of the gas side

service valve.

2 Measure the air temperature from inlet and

outlet of air conditioner.

3 Ensure the difference between the inlet

and outlet temperature is more than 8 °C.

4 For reference; the gas side pressure at

optimum condition is shown on table (cooling)

The air conditioner is now ready to use.

Inlet temperature

Discharge air

Discharge temperature

* The feature can be changed according a

type of model.

THE INDOOR UNIT INSTALLATION

Drain hose

Bracket

ENGLISH

[Ceiling suspended type]

- Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up - and down slope to prevent reversal flow.

- During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.

- Remove the rubber stopple before connecting drain hose.

- Hook on the bracket after connecting the drain hose as below.

Drain test

Use the following procedure to test the drain pump operation:

- Set the air direction louvers up - and - down to the position(horizontally) by hand.

- Pour a glass of water on the evaporator using a kettle.

- Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit.

THE INDOOR UNIT INSTALLATION

ENGLISH

HEAT INSULATION

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

- Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard 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:

Fastening band (accessory)

Indoor unit

Refrigerant piping

Thermal insulator (accessory)

- Heat insulation material to be prepared... Adiabatic EPDM or NBR with thickness 10 to 20 mm.

- Stick glass wool on all air conditioners that are located in ceiling atmosphere.

Insulation material standard (mm) - residential

If installed in an air-conditioned

place (CASE 1)

(ex: bedroom, living room, etc.)

13 13 13 13 13 13 19 19 19 19 19

If installed in a non-air

conditioned place (CASE 2)

(ex: hallway, outdoors, etc.)

19 19 19 19 19 19 19 19 19 25 25

Insulation material

standard (mm)

(unfavorable

conditions)

19 25 25 25 25 32 32 32 32 32 32

applies to

Gas piping

Liquid piping

Insulation material standard

(mm)

(besides normal conditions for

residential use)

Refrigerant piping dimensions (mm)

6.35

9.52

12.7

15.88

19.05

22.22

25.40

28.58

31.75

38.1

44.45

6.35

9.52

EPDM EPDM EPDM EPDM

19 19 19 19 19 19 19 19 19 25 25

9 9 9 9

12.7~44.45 13 13 13 13

• Normal conditions: Temperature of 30 °C, relative humidity of 85 %

• Unfavorable conditions: Temperature of 30 °C, relative humidity of 90 % (humid places such as

bathrooms, swimming pools, etc.: air supply and exhaust fan installation)

THE INDOOR UNIT INSTALLATION

Power connecting cable

Control box

Control box cover (On which the Electric Wiring Connection is put)

Control terminal board

Remote controller cord

Connection cord between the indoor unit and the outdoor unit

Ceiling Concealed Duct – Low Static, Mid Static

Remote controller cord

Connection cord between the indoor unit and the outdoor unit

Control box cover (On which the Electric Wiring Connection is put)

ENGLISH

Wiring Connection

* The feature can be changed according a

type of model.

- Open the control box cover and connect the Remote controller cord and Indoor power wires.

- Remove the control box cover for electrical connection between the indoor and outdoor unit. (Remove screws ①)

- Use the cord clamper to fix the cord.

Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No. are the same as those of the indoor unit.)

Insert the connecting cable through the bottom side of indoor unit and connect the cable.

(1) Open the Decor (2) Unscrew the screw of C/Box (3) Slide up the Metal Plate Cover (4) Connect the connecting cable (5) After complete connect the cables, should

assemble the Metal Plate Cover by screw.

1(L) 2(N) 3(C)

Decor

Power

Power connecting cable

connecting cable

Loosen No 1, 2 screws of control box

cover.

Connect the cable to the Terminal block as

below diagram

Terminal Block of Indoor Unit

1(L) 2(N) 3

Outdoor

Connecting Cable

Clamp Cord

Terminal Block

ENGLISH

THE INDOOR UNIT INSTALLATION

CAUTION

The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (This equipment shall be provided with a cord set complying with the national regulation).

10±3 mm

35±5 mm

GN/YL

NORMAL CROSS-SECTIONAL AREA 0.75 mm

20 mm

Secure the cable onto the Control panel with the Clamp cord.

If indoor unit's setting is needed, loosen No.3 screw and lift up the PCB. (option: usage of bottom vanes, limit angle of top vane)

DIP

Description

S/W

S/W 5

S/W 7 Vane

The Power cord connected to the unit should be selected according to the following specifications.

Install scene

CAUTION

S/W OFF S/W ON

Exposed

Top+Bottom

vane

Concealed

Top vane

Half

only

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

CAUTION

- The circuit diagram is a subject to change without notice.

- The earth wire should be longer than the common wires.

- When installing, refer to the circuit diagram on the chassis cover.

- Connect the wires firmly so that they may not be pulled out easily.

- Connect the wires according to color codes, referring to the wiring diagram.

THE INDOOR UNIT INSTALLATION

Power wire

Round pressure terminal

Connect same thickness

wiring to both sides.

It is forbidden to

connect two to one

side.

It is forbidden to

connect wiring of

different thicknesses.

ENGLISH

Precautions when laying power wiring

Use round pressure terminals for connections to the power terminal block.

When none are available, follow the instructions below.

- Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.)

- When connecting wiring which is the same thickness, do as shown in the figure below.

- For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure being exerted on the terminal block.

- Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will strip the head and make proper tightening impossible.

- Over-tightening the terminal screws may break them.

CAUTION

According to the confirmation of the above conditions, prepare the wiring as follows.

1 Never fail to have an individual power

circuit specifically for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control cover.

2 The screw which fasten the wiring in the

casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation. Check them and make sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)

3 Specification of power source. 4 Confirm that electrical capacity is

sufficient.

5 See that the starting voltage is

maintained at more than 90 percent of the rated voltage marked on the name plate.

6 Confirm that the cable thickness is as

specified in the power source specification. (Particularly note the relation between cable length and thickness.)

7 Always install an earth leakage circuit

breaker in a wet or moist area.

8 The following would be caused by

voltage drop.

- Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal function of the overload.

9 The means for disconnection from a

power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3 mm in each active(phase) conductors.

10 Open the terminal cover block before

connecting the indoor side wire.

Pipe

Reamer

Point down

ENGLISH

THE INDOOR UNIT INSTALLATION

Electrical Wiring

All wiring must comply with LOCAL REGULATIONS.

Select a power source that is capable of supplying the current required by the air conditioner.

Feed the power source to the unit via a distribution switch board designed for this purpose.

The terminal screws inside the control box may be loose due to vibration during transport. Check the screws for loose connection. (Running the air conditioner with loose connection can overload and damage electrical components.)

Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION.

Main power source

Air

Conditioner

CAUTION

• The circuit diagram is not subject to change without notice.

• Be sure to connect wires according to the wiring diagram.

• Connect the wires firmly, so that not to be pulled out easily.

• Connect the wires according to color codes by referring the wiring diagram.

Circuit Breaker

Flaring Work

Main cause for gas leakage is due to defect of 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 1.5 m longer than the pipe

length.

Copper

pipe

Burrs removal

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

2. While removing burrs put the end of the copper tube/pipe in a downward direction while removing burrs location is also changed in order to avoid dropping burrs into the tubing.

90°

Slanted Uneven Rough

CAUTION

Copper in contact with refrigerants shall be oxygen-free or de-oxidized, for example Cu-DHP as specified in EN 12735-1 and EN 12735-2

THE INDOOR UNIT INSTALLATION

Flare nut

Copper tube

ENGLISH

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 finishing flare work)

Flaring work

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

2 Carry out flaring work with the flaring tool.

Pipe diameter

Inch (mm)

Ø 1/4 (Ø 6.35) Ø 3/8 (Ø 9.52)

Ø 1/2 (Ø 12.7) Ø 5/8 (Ø 15.88) Ø 3/4 (Ø 19.05)

0.04~0.05 (1.1~1.3)

0.06~0.07 (1.5~1.7)

0.06~0.07 (1.6~1.8)

0.07~0.08 (1.9~2.1)

A inch (mm)

Wing nut type Clutch type

0~0.02 (0~0.5)

CAUTION

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

• Flared joint shall be restricted to use with annealed pipe only, and to pipe sizes not exceeding a diameter of 20 mm outside diameter.

Check

1 Compare the flared work with the figure

by.

2 If a flared section is defective, cut it off

and do flaring work again.

Smooth all round

Even length

all round

Inside is shiny without scratches

= Improper ﬂaring =

Surface

damaged

Cracked Uneven

Inclined

thickness

Bar

Copper pipe

"A"

Gas Pipe

Liquid Pipe

Cutting Line

Good Case Bad Case

* Tubing cutting line have to be upward.

Vinyl tape(narrow)

Connection pipe

Connecting cable

Vinyl tape (wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe

ENGLISH

THE INDOOR UNIT INSTALLATION

Connecting the installation pipe and drain hose to the indoor unit.

1 Align the center of the pipes and

sufficiently tighten the flare nut by hand

Indoor unit tubing Flare nut Pipes

2 Tighten the flare nut with a wrench

Outside diameter

mm inch kgf.m Ø 6.35 1/4 1.8~2.5 Ø 9.52 3/8 3.4~4.2 Ø 12.7 1/2 5.5~6.5

Ø 15.88 5/8 6.3~8.2 Ø 19.05 3/4 9.9~12.1

Wrench

Torque

Open-end wrench (ﬁxed)

Flare nut

Connection pipe

Wrap the insulation material around

the connecting portion.

1 Overlap the connection pipe insulation

material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there may be no gap.

Insulation material

2 Set the tubing cutting line upward.

Wrap the area which accommodates the rear piping housing section with vinyl tape.

Indoor unit tubing

CAUTION

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

• When flared joints are reused indoors, the flare part shall be re-fabricated.

3 When needed to extend the drain hose of

indoor unit, assembly the drain pipe as shown on the drawing

Drain pipe

Adhesive

Indoor unit drain hose

Vinyl tape(narrow)

3 Bundle the piping and drain hose together

by wrapping them with vinyl tape sufficient enough to cover where they fit into the rear piping housing section.

Wrap with vinyl tape

Pipe

Vinyl tape(wide)

Drain hose

THE INDOOR UNIT INSTALLATION

ENGLISH

Test Running

- Check that all tubing and wiring are properly connected.

- Check that the gas and liquid side service valves are fully open.

Prepare remote controller

1 Remove the battery cover by pulling it

according to the arrow direction.

2 Insert new batteries making sure that the

(+) and (–) of battery are installed correctly.

3 Reattach the cover by pushing it back into

position.

NOTE

Test operation

- If you press and hold the On/Off button for 3 – 5 seconds instead of 6 seconds, the unit will switch to the test operation.

- In the test operation, the unit blows out strong air for cooling for 18 minutes and then returns to the factory default settings.

NOTE

If the actual pressure is higher than shown, the system is most likely over-charged, and charge should be removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added.

• Use 2 AAA(1.5 V) batteries. Do not use rechargeable batteries.

• Remove the batteries from the remote controller if the system is not used for a long time

THE INDOOR UNIT INSTALLATION

ENGLISH

Pump Down

This is performed when the unit is relocated or the refrigerant circuit is serviced.

Pump Down means collecting all refrigerant into the outdoor unit without the loss of refrigerant.

NOTE

Be sure to perform Pump Down procedure in the cooling mode.

WARNING

It may cause explosion or injury. After pump down, power must be turned

off before removing the pipe. When operating this product without connecting the pipe, there will be high pressure inside the compressor due to the entry of air, possibly causing explosion or injury.

Pump Down Procedure

- Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve.

- Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant.

- Close the liquid side service valve(all the way).

- Turn on the unit's operating switch and start the cooling operation.

- When the low-pressure gauge reading becomes 1 to 0.5 kg/cm P.S.I.G.), fully close the gas side valve and then quickly turn off the unit. Now Pump Down procedure is completed, and all refrigerant is collected into the outdoor unit.

G(14.2 to 7.1

THE INDOOR UNIT INSTALLATION

ENGLISH

Heating Only Mode

Heating Only Mode switching function setup

1 Supply the power to the unit with no

functions active.

2 Enter the Installer Code and set the code

to 47.

3 Press to select the code No.47 then,

check if buzzer beeps.

4 Cut the power to the unit. 5 Turn back on the power to the unit after 30

seconds.

Heating Only Mode switching function disable setup

1 Supply the power to the unit with no

functions active.

2 Enter the Installer Code and set the code

to 48.

3 Press to select the code No.48 then,

check if buzzer beeps.

4 Cut the power to the unit. 5 Turn back on the power to the unit after 30

seconds.

* How to enter the installer mode

Press Reset Button and ‘A’ Button ( )

Press

* How to set the code

Set the code you want by pressing TEMP

button ( _

) and press .

SETUP

10 digit

1 digit

NOTE

- Once the function is set up, Cooling, Dehumidification Auto Change over cannot be used.

- Once the function is disable it will return to its normal state.

- Code cannot be entered when it is in operation mode. It must be OFF state to enter code.

- Even if able to enter code in ON state, it won’t function if the code is not entered in OFF state.

- At Heating Only Mode, if the product gets turned off while the wireless remote control is set at other than heating / blowing, the product will not get turned back on. Turn off the product after the wireless remote control is set at heating / blowing and then turn back on.

ENGLISH

THE INDOOR UNIT INSTALLATION

SMART DIAGNOSIS (Optional)

Diagnosis of operating information

1 Enter the Installer Code and set the code

to 57.

2 Click the “Receive” button on the main

screen of LG AC Smart Diagnosis App on your smart phone.

3 Press and hold your smart phone close

to the indoor unit.

4 Receive the buzzer beeps from indoor unit

with your smart phone.

5 The diagnosis of operating information will

be displayed on the screen of your smart phone.

Diagnosis of error information

1 Enter the Installer Code and set the code

to 58.

2 Click the “Receive” button on the main

screen of LG AC Smart Diagnosis App on your smart phone.

3 Press and hold your smart phone close

to the indoor unit.

4 Receive the buzzer beeps from indoor unit

with your smart phone.

5 The diagnosis of operating information will

be displayed on the screen of your smart phone.

* How to enter the installer mode

Press Reset Button and ‘A’ Button ( )

Press

* How to set the code

Set the code you want by pressing TEMP

button ( _) and press .

SETUP

10 digit

1 digit

NOTE

- Be sure to keep ambient noise to a

minimum or the smart phone may not correctly receive the buzzer beeps from the indoor unit.

- Initialization of diagnosis data may take

approximately 1 minute after supplying the AC power .

- The code No. 57 is used for confirming

the diagnosis data which is updated on while the indoor unit is operating

- The code No. 58 is used for confirming

the diagnosis data which is the occurred time of Error Code.

THE INDOOR UNIT INSTALLATION

Manual the decor, air ﬁlter Assembly & Disassembly

ENGLISH

Disassemble the decor

1 Turn off the power and unplug the power cord. 2 Pull the decor at the bottom of the indoor unit.

Remove the decor from the indoor unit.

Assemble the decor

Turn off the power and unplug the power cord.

2 Insert 3 or 4 hooks of the decor into gap of

the indoor unit certainly.

Disassemble the air ﬁlter

Turn off the power and unplug the power cord.

Hold the knob of the air filter, Lift it up slightly.

3 Hold the knob of the air filter, lift it up

slightly and remove it from the unit.

Assemble the air ﬁlter

Turn off the power and unplug the power cord.

2 Insert the hooks of the air filter into the

front grille.

Push down hooks to assemble the air filter.

Push the nooks to assemble the decor.

CAUTION

The air filter can be broken when it is bended.

4 Check side of the front grille for the air filter

assembled correctly.

NOTE

lf the air filter is not assembled correctly, Dust and other substance come into the indoor unit. lf look at the indoor unit from higher than it, can assemble the air filter easily.

THE INDOOR UNIT INSTALLATION

ENGLISH

Precautions about installation in regions with extreme snowfall and cold temperatures

To ensure the outdoor unit operates properly, certain measures are required in locations where there is a possibility of heavy snowfall or severe wind chill or cold :

1 Prepare for severe winter wind chills and heavy snowfall, even in areas of the country where these

are unusual phenomena.

2 Position the outdoor unit so that its airflow fans are not buried by direct, heavy snowfall.

If snow piles up and blocks the airflow, the system may malfunction.

3 Remove any snow that has accumulated 100 mm or more on the top of the outdoor unit. 4 Place the outdoor unit on a raised platform at least 500 mm higher than the aver- age annual

snowfall for the area. If the frame width is wider than the outdoor unit, snow may accumulate.

5 Install a snow protection hood. 6 To prevent snow and heavy rain from entering the outdoor unit, install the suction and dis- charge

ducts facing away from direct winds.

7 Additionally, the following conditions should be taken into consideration when the unit operates in

defrost mode:

- If the outdoor unit is installed in a highly humid environment (near an ocean, lake, etc.), en- sure that the site is well-ventilated and has a lot of natural light. (Example: Install on a rooftop.)

INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

Separate the link from the front grill

Corner cover

Hook clip

Hook

INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

ENGLISH

The decorative panel has its installation direction. Before installing the decorative panel, always remove the paper template.

1 Remove the packing and take out air inlet

grille from front panel.

3 Fit the panel on the unit by inserting hooks

as shown in picture.

4 Insert two screws on diagonal corners of

panel. Do not tighten the bolts completely. (The fixing screws are included in the indoor unit box.) Check the alignment of panel with the ceiling. Height can be adjusted using hanging bolts as shown in picture. Insert the other two screws and tighten all screws completely.

2 Remove the Corner covers of the panel.

Screw

Installing the grill link on the panel body

Inserting the edge into the panel body

Closing the door lock

Check the left, right and central sections

CN_VANE 1,2

CN_DISPLAY

ENGLISH

INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

5 Fit the corner covers.

6 Open two screws of control panel cover.

7 Connect one display connector and two

vane control connectors of front panel to indoor unit PCB. The position marking on PCB is as: Display connector : CN_DISPLAY Vane control connector: CN_VANE 1,2

9 Install the air inlet grille and Filter on the

panel.

- After inserting the edge of the grill into the panel body, close the door lock and press on the left, right, and center sections.

8 Close the cover for control box.

INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

Air conditioner unit

Decorative panel

Fit the insulator (this part) and be careful for cool air leakage

Good example

Ceiling

board

Ceiling

board

Decorative panel

Air

Cool air leakage

(no good)

Bad example

Air conditioner unit

ENGLISH

CAUTION

Install certainly the decorative panel. Cool air leakage causes sweating.  Water drops fall.

PRECAUTIONS IN TEST RUN

- The initial power supply must provide at least 90 % of the rated voltage. Otherwise, the air conditioner should not be operated.

CAUTION

• For test run, carry out the cooling operation firstly even during heating season. If heating operation is carried out firstly, it leads to the trouble of compressor. Then attention must be paid.

• Carry out the test run more than 5 minutes without fail. (Test run will be cancelled 18 minutes later automatically)

- To cancel the test run, press any button.

CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETED

- After completing work, be sure to measure and record trial run properties, and store measured data, etc.

- Measuring items are room temperature, outside temperature, suction temperature, blow out temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping temperature, compressive pressure.

- As to the structure and appearance, check following items.

* Is the circulation of air adequate? * Is the draining smooth? * Is the heat insulation complete

(refrigerant and drain piping)? * Is there any leakage of refrigerant? * Is the remote controller switch operated? * Is there any faulty wiring? * Are not terminal screws loosened?

M4......118 N.cm{12 kgf.cm}

M5......196 N.cm{20 kgf.cm}

M6......245 N.cm{25 kgf.cm}

M8......588 N.cm{60 kgf.cm}

Connection of power supply

- Connect the power supply cord to the independent power supply. Circuit breaker is required.

- Operate the unit for 15 minutes or more.

Evaluation of the performance

- Measure the temperature of the intake and discharge air.

- Ensure the difference between the intake temperature and the discharge one is more than 8 °C (Cooling) or reversely (Heating).

Thermometer

On/Off

button

0.6 s

1.6 s 4 s

Ex ) CH 132

XXO XOX OXX

ON/OFF

Operation lamp

ENGLISH

INSTALLATION OF DECORATIVE PANEL(ACCESSORY)

Test operation

During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room temperature and resets in 18 minutes. During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, Press and hold the ON/OFF button for 3~5 seconds, then the buzzer sound 1 'beep'. If you want to stop the operation, re-press the button.

Self-Diagnosis Function

This unit has an inbuilt error diagnosis capability. Error is displayed by 'RED' Operation Lamp. Please contact your serviceman/dealer in such a situation

Evaluation of the performance

Operate the unit for 10~15 minutes, then check the system refrigerant charge:

Measure the pressure of the gas side service valve.

Measure the air temperature from inlet and outlet of air conditioner.

Ensure the difference between the inlet and outlet temperature is more than 8 °C.

For reference; the gas side pressure at optimum condition is shown on table (cooling)

The air conditioner is now ready to use.

Intake temperature

Discharge air

Discharge temperature

Refrigerant

ambient

TEMP.

R-410A 35 °C (95 °F)

Outside

The pressure of

the gas side

8.5~9.5 kg/cm2G (120~135 P.S.I.G.)

NOTE

If the actual pressure is higher than shown, the system is most likely overcharged, and charge should be removed. If the actual pressure are lower than shown, the system is most likely undercharged, and charge should be added.

INSTALLATION INSTRUCTIONS

Installer Setting - How to enter installer setting mode

CAUTION

Installer setting mode is to set the detail function of the remote controller. If the installer setting mode is not set correctly, it can cause problems to the product, user

injury or property damage. This must be set by an certificated installer, and any installation or change that is carried out by a non-certificated person should be responsible for the results.

In this case, free service cannot be provided.

1 With the JET MODE button pressed, press

the RESET button.

2 By using the TEMPERATURE SETTING

button, set function code and setting value. (Please refer the Installer Setting Code Table.)

3 Press the ON/OFF button toward the indoor

unit 1 time.

ENGLISH

TIME (3 s)

°C/°F (5 s)

4 Reset the remote controller to use the

general operation mode.

Refer to the Installer Setting Code Table on the next page.

INSTALLATION INSTRUCTIONS

ENGLISH

Installer Setting - Installer Setting Code Table

Installer Setting Code Table

No. Function Function code Setting value Remote controller LCD

0 : Set to master

0 Mode override

Ceiling height

Selection

Group control

Auxiliary heater

Mode Override This Function is only for Non-Auto Changeover H/P model.

1 : Set to slave

1 : Standard

2 : Low

3 : High

4 : Super high

0 : Set to master

1 : Set to slave

2 : Check master/slave

3 : Set to auxiliary heater

4 : Cancel auxiliary heater

5 :

Check auxiliary heater Installation

00 01 11 12 13 14 20 21 22 23 24 25

Ceiling Height Selection Indoor unit connected to wired remote controller operate as wired remote controller setting.

Group Control (optional) This function is only for group control. Please don’t set this function in case of non-group

control. After setting group control of the product, turn off the power then turn it back on after 1

minute.

Auxiliary heater This function is only applied to models with Auxiliary Heater function being activated.

INSTALLATION INSTRUCTIONS

Installer Setting - Setting Address of Central Control

1 With the MODE button pressed, press the

RESET button.

2 By using the temperature setting button, set

the indoor unit address.

• Setting range : 00 ~ FF

3 After setting the address, press the ON/OFF

button toward the indoor unit 1 time.

4 The indoor unit will display the set address to

complete the address setting.

• The address display time and method can differ by the indoor unit type.

5 Reset the remote controller to use the

general operation mode.

°C/°F (5 s)

TIME (3 s)

ENGLISH

Installer Setting - Checking Address of Central Control

1 With the FUNC. button pressed, press the RESET button.

2 Press the ON/OFF button toward the indoor unit 1 time, and the indoor unit will display the set

address in the display window.

• The address display time and method can differ by the indoor unit type.

3 Reset the remote controller to use the general operation mode.

INSTALLATION INSTRUCTIONS

ENGLISH

Ceiling Concealed Duct – Low static

Table 1

Chassis

Capacity

(kBtu/h)

L5 9

L5 12

L6 18

L3 24

L5 12 High

L3 18 High

Grade Step CMM

Standard Compact

LOW

MID HIGH LOW

MID HIGH

Static Pressure [mmAq(Pa)]

0(0) 1(10) 2(20) 3(29) 4(39) 5(49)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06

8 76 87 96 106 116 116

9.5 87 96 106 114 120 120

11.5 101 109 118 125 130 130 8 76 87 96 106 116 116

9.5 87 96 106 114 120 120

11.5 101 109 118 125 130 130

10 82 87 90 96 106 116

12.5 92 98 105 109 119 128

15 100 106 112 122 129 137 12 89 95 102 106 120 130 16 102 108 115 125 131 139 20 125 131 136 141 142 147

8 76 87 96 106 116 116

9.5 87 96 106 114 120 120

11.5 101 109 118 125 130 130

10 80 90 95 100 110 120 14 97 103 109 117 126 134 18 115 122 127 133 138 142

NOTE

1. The above table shows the correlation between the air rates and E.S.P.

2. Be sure to set the value referring table 1. Unexpected set value will cause mal-function.

3. Table 1 is based at 230 V. According to the fluctuation of voltage, air flow rate varies.

Ceiling Concealed Duct – Mid static

Table 2

Capacity

Chassis

(kBtu/h)

M1 18

M1 24

M1 12 High

M1 18 High

Chassis

M1 30

M2 24 High

M2 30 High

Compact

Capacity

(kBtu/h)

Compact

Grade Step

Standard

Grade Step

Standard

LOW

MID HIGH LOW

MID HIGH

LOW 18 96 102 107 110 114 118 122 125 127 130 132

MID 20 102 110 114 118 121 125 127 130 133 134 136

HIGH 22 110 117 121 124 127 130 133 136 137 138 140

LOW 21 84 88 89 90 95 96 100 105 110 112 113

MID 24 88 92 94 95 100 101 108 113 118 118 118

HIGH 28 92 96 99 101 105 108 115 118 124 124 124

LOW 21 84 88 89 90 95 96 100 105 110 112 113

MID 24 88 92 94 95 100 101 108 113 118 118 118

HIGH 28 92 96 99 101 105 108 115 118 124 124 124

2(20) 2.5(25) 3(29) 4(39) 6(59) 8(78)

CMM

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

13 73 74 77 88 93 103 111 117 120 125 128

14.5 76 77 86 91 97 107 114 121 125 128 131

16.5 86 87 90 94 103 110 118 125 128 131 134

14.5 76 77 86 89 97 106 114 121 124 127 130

16.5 86 87 90 94 103 111 118 125 128 131 134 18 90 92 95 99 108 115 122 129 132 135 138

9 64 67 70 72 81 94 103 110 113 117 121 12 68 72 74 76 86 100 108 115 118 121 125 16 81 86 89 93 98 110 118 124 127 131 135 14 76 77 86 89 97 107 114 121 124 127 130 16 86 87 90 94 103 111 118 125 128 131 134

17.5 90 92 95 99 108 115 122 129 132 135 138

2.5(25) 4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98)

CMM

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

INSTALLATION INSTRUCTIONS

Static Pressure [mmAq(Pa)]

10(98) 12(118) 13(127) 14(137) 15(147)

Setting Value

Static Pressure [mmAq(Pa)]

Setting Value

11(108) 13(127) 15(147)

ENGLISH

INSTALLATION INSTRUCTIONS

Capacity

Chassis

M2 36

M3 48

M3 48 High

M3 36 High

M3 42 High

M3 60

Grade Step CMM

(kBtu/h)

Standard Compact

LOW

MID HIGH LOW

MID HIGH

Static Pressure [mmAq(Pa)]

4(39) 5(49) 6(59) 7(69) 8(78) 9(88) 10(98)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11 24 88 91 95 100 101 108 113 115 118 118 118 28 93 97 101 105 108 115 118 120 124 124 124 32 101 105 109 112 115 119 123 126 128 128 128 28 74 76 79 82 89 92 94 96 99 102 107 34 78 82 84 89 94 96 98 101 104 106 112 40 83 89 92 94 98 100 102 105 108 110 116 28 74 76 79 82 89 92 94 96 99 102 107 34 78 82 84 89 94 96 98 101 104 106 112 40 83 89 92 94 98 100 102 105 108 110 116 28 74 76 79 82 89 92 94 96 99 102 107 34 78 82 84 89 94 96 98 101 104 106 112 40 83 89 92 94 98 100 102 105 108 110 116 28 74 76 79 82 89 92 94 96 99 102 107 34 78 82 84 89 94 96 98 101 104 106 112 40 83 89 92 94 98 100 102 105 108 110 116 40 82 89 92 94 98 100 102 105 108 110 113 45 90 92 96 98 102 104 106 109 112 114 117 50 94 97 100 104 107 109 112 115 117 119 121

11(108) 12(118) 13(127) 15(147)

Chassis

M2 42

Capacity

Grade Step CMM

(kBtu/h)

Standard Compact

Static Pressure [mmAq(Pa)]

5(49) 6(59) 7(69) 8(78) 9(88) 10(98)

Setting Value

32:01 32:02 32:03 32:04 32:05 32:06 32:07 32:08 32:09 32:10 32:11

LOW

28 100 103 106 110 114 118 121 125 128 133 136

MID

33 108 111 114 118 122 125 128 131 134 138 140

HIGH

38 117 120 124 127 130 133 135 138 140 144 147

11(108) 12(118) 13(127) 14(137) 15(147)

INSTALLATION INSTRUCTIONS

NOTE

1. Be sure to set the value referring table 2. Unexpected set value will cause mal-function.

2. Table 2 is based at 230 V. According to the fluctuation of voltage, air flow rate varies.

3. Factory Set(External Static Pressure) each Model

ENGLISH

Capacity

(kBtu/h)

18 24 30 36 42 48 60

* If it is zero static pressure, please set value below Maximum value.

Chassis Maximum value

M1 115 M2 120 M3 98

Factory set (E.S.P.) mmAq(Pa)

6(59)

DIP SWITCH SETTING

Indoor PCB

ENGLISH

DIP SWITCH SETTING

Function Description Setting Off Setting On Default

SW3 Group Control

SW4

SW5 Installation

Dry Contact

Mode

Selection of Master

Selection of Dry

Contact Mode

Fan continuous

or Slave

operation

Indoor PCB

Master Slave Off

Wired/Wireless remote

Selection of Manual or Auto

controller

operation Mode

Continuous operation

Removal

Auto Off

Working Off

LG US30F INSTALLATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual