LG LHN247HV, LHN367HV, LH367HV Installation Manual

P/NO : MFL61971216

http://www.lghvac.com

www.lg.com

INSTALLATION MANUAL

AIR CONDITIONER

• Please read this installation manual completely before installing the product.

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

• Please retain this installation manual for future reference after reading it thoroughly.

TYPE : Ceilling Concealed Duct

ENGLISH

FRANCAIS

ESPAÑOL

• 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 :

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:

TIPS FOR SAVING ENERGY

ENGLISH

TIPS FOR SAVING ENERGY

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are ignored

WARNING

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

• Installation of all field wiring and components MUST conform with local building codes or, in the absence of local codes, with the National Electrical Code 70 and the National Building Construction and Safety Code or Canadian Electrical code and National Building Code of Canada.

• The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

Installation

• Always perform grounding. - Otherwise, it may cause 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.

• 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.

• Consult your lacal dealer regarding what to do in case of refrigerant leakage. When the air conditioner is to be installed in a small room, it is necessary to take proper measures so that the amount of any leaked refrigerant does not exceed the concentration limit in the event of a leakage. Otherwise, this may lead to an accident due to oxygen depletion.

• Carry out the specified installation work after taking into account earthquakes. Failure to do so during installation work may result in the unit falling and causing accidents.

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

• Make sure that a sekparate power supply circuit is provided for this unit and that all electrical work is carried out by qualified personnel according to local laws and regulations and this installation manual. An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.

• Be sure to switch off the unit before touching any electrical parts.

• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or wires.

• If refrigerant gas leaks during installation, ventilate the area immediately. Toxic gas may be produced if the refrigerant gas comes into contact with fire.

Operation

• 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 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.

• 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.

• 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.

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.

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.

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

2 TIPS FOR SAVING

ENERGY

3 IMPORTANT SAFETY

INSTRUCTIONS

6 INSTALLATION PLACES

7 THE INDOOR UNIT

INSTALLATION

12 Indoor Unit Drain Piping 12 Drain test 13 Heat insulation 13 Wiring Connection

15 REMOTE CONTROLLER

INSTALLATION

17 OPTIONAL OPERATION

17 Installer Setting -Test Run Mode 18 Installer Setting - Setting Address of

Central Control

19 Installer Setting -Thermistor 20 Installer Setting-Group Setting 21 Installer Setting-Celsius / Fahrenheit

Switching

22 HOW TO SET E.S.P?

22 Installer Setting -E.S.P.

24 SELF-DIAGNOSIS FUNC-

TION

24 Indoor Unit Error

25 DIP SWITCH SETTING

TABLE OF CONTENTS

ENGLISH

INSTALLATION PLACES

Indoor unit

- 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

Top view

(unit: mm)

Front view

(unit: mm(inch))

Inspection hole

600(23-5/8) X 600(23-5/8)

Control box

600(23-5/8) 600(23-5/8)

1000(39)

Front

20(25/32) or more

ENGLISH

THE INDOOR UNIT INSTALLATION

Installation of Unit Install the unit above the ceiling correctly.

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.

Unit:mm(inch)

M10 Nut M10 SP. washer M10 washer

X 4 X 4

(Local supply)

X 4

M10 Nut

M10 SP. washer

M10 washer

X 4 X 4

(Local supply)

X 4

Drainage hole

A B

(G)

Inspection Port

Indoor Unit

Ceiling

Canvas Duct

Air Intake Port

Ceiling Board

Air Discharge Port

Discharge Duct

Intake Duct

body

ﬁlter

Joint canvas Main duct

24 K 36 K

A 1,232(48.5) 1,290(50.8) B 1,182(46.5) 1,230(48.4) C 355(14) 447(17.6) D 45.5(1.8) 56(2.2) E 450(17.7) 590(23.2) F 30(1.2) 30(1.2) G 87(3.4) 120(4.7) H 830(32.7) 1,006(39.6)

I 186(7.3) 294(11.6)

J 298(11.7) 380(15)

Dimension

Capacity

Case 1

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

Position of console Bolt

- 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.

Case 2

ENGLISH

THE INDOOR UNIT INSTALLATION

1 Set anchor

Old building New building

2 Plate washer 3 Spring washer

4 Nut

5 Suspension bolts

- 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.

- Select and mark the position for fixing bolts.

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

• 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 top revent unit falling.

ENGLISH

THE INDOOR UNIT INSTALLATION

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 5mm.

• Always lay the drain with downward inclination (1/100 to 1/50). Prevent any upward flow or reverse flow in any part.

• 10mm or thicker formed thermal insulator shall always be provided for the drain pipe.

• Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.

• Upward routing not allowed

Lay the drain hose with a downward inclination so water will drain out.

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

Front of view

CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING

Ceiling

1/100~1/50

Drainage hole

CORRECT

INCORRECT

Drainage holeMake sure to be closed.

Unit

Drainage pipe (Local supply)

Thermal insulator

(Local supply)

CORRECT

INCORRECT

U -Tra p

A → 70mm B → 2C C → 2 x SP SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq A → 70mm B → 40mm C → 20mm

Applied U-Trap Dimension

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