LG APUW50GT3E0 INSTALLATION MANUAL

ENGLISH

P/NO : MFL68061209

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.

Floor standing APUQ55GT3E0, APUQ55GT3M0, APUW55GT3E0, APUW55GT3M0 APUQ55LT3E0, APUQ55LT3M0, APUW55LT3E0, APUW55LT3M0 APUQ55GT3A0, APUQ50LT3E0, APUW50GT3E0, APUW50LT3E0

TIPS FOR SAVING ENERGY

ENGLISH

• Do not cool excessively indoors. This may be harmful to 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 labeled 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

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

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 work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

• 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 electric shock.

• Don’t use a damaged power cable. Otherwise, it may cause a fire or electric shock.

• For installation of the product, always contact the service center or a professional installation agency. Otherwise, it may cause a fire, electric 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 earth leakage circuit breaker and a dedicated switching board. No installation may cause a fire and electric 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 electric shock.

• 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 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.

• 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.

• For installation of the product, do not use the pipe less than 5 m. Otherwise, it may cause damage of compressor and to form dewdrop on the indoor unit. Also, it may cause to decrease capacity.

IMPORTANT SAFETY INSTRUCTIONS

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 cable. Otherwise, it may cause a fire or electric shock.

• Do not modify or extend the power cable randomly. Otherwise, it may cause a fire or electric shock.

• Take care so that the power cable may not be pulled during operation. Otherwise, it may cause a fire or electric shock.

• Turn off the unit if strange sounds, smell, or smoke comes from it. Otherwise, it may cause electric shock or a fire.

• Keep the flames away. Otherwise, it may cause a fire.

• Do not use the power cable near the heating tools. Otherwise, it may cause a fire and electric shock.

• Do not open the suction inlet of the indoor/outdoor unit during operation. Otherwise, it may electric shock and failure.

• Do not allow water to run into electrical parts. Otherwise, it may cause the failure of machine or electric shock.

• Do not touch the power cable with wet hands. 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 cable. Otherwise, it may cause a fire or electric shock.

• When the product is submerged into water, always contact the service center. Otherwise, it may cause a fire or electric shock.

• Take care so that children may not step on the outdoor unit. Otherwise, children may be seriously injured due to falling down.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

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.

TABLE OF CONTENTS

ENGLISH

2 TIPS FOR SAVING EN-

ERGY

3 IMPORTANT SAFETY IN-

STRUCTIONS

7 INSTALLATION OF OUT-

DOOR UNIT

9 WIRING CONNECTION

9 Electrical wiring

10 Connecting cables between indoor unit

and outdoor unit

12 Connecting the cable to outdoor Unit

13 CONNECTING PIPES

13 Preparation of piping

14 Connecting the pipes to the outdoor unit

16 Forming the piping

19 LEAKAGE TEST AND

EVACUATION

19 Preparation

19 Leakage test

20 Evacuation

21 TEST RUNNING

23 FUNCTION

23 Dip switch setting

24 SELF-DIAGNOSIS FUNC-

TION

24 Error indicator (Outdoor)

27 INSTALLATION GUIDE AT

THE SEASIDE

28 CONVENIENT FUNC-

TIONS

28 Pressure compensation function

TABLE OF CONTENTS

INSTALLATION OF OUTDOOR UNIT

ENGLISH

- If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

- Ensure that the spaces indicated by arrows around front, back and side of the unit.

- Do not place animals and plants in the path of the warm air.

- Take the air conditioner weight into account and select a place where noise and vibration are minimum.

- Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.

More than 300 mm

Fence or

obstacles

More than 700 mm

More than 600 mm

More thanMore than 300mm300mm

More than 300 mm

Sunroof

Installation Places

INSTALLATION OF OUTDOOR UNIT

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Floor Standing Air conditioner

• Do not use the pipe less than 5 m. Otherwise, it may cause damage of compressor and to form dewdrop on the indoor unit. Also, it may cause to decrease capacity.

• Capacity is based on the length of 5 m and maximum allowance length is on the basis of reliability.

• Improper refrigerant charge may result in abnormal cycle.

CAUTION

If installed tube is shorter than 5 m, additional charging is not necessary. Additional Refrigerant = (A -5) x Additional refrigerant (g)

Piping length and the elevation

MODEL

Pipe Size Length A (m) Elevation B (m)

Additional Refrigerant

(g/m)

Gas Liquid

Standard

Max.

Standard

Max.

APUQ55GT3E0

APUQ55GT3M0

Ø19.05(3/4) Ø 9.52(3/8)

530-20 30

APUQ55LT3E0

APUQ55LT3M0

APUQ55GT3A0 APUQ50LT3E0

APUW55GT3E0

APUW55GT3M0

APUW55LT3E0 APUW55LT3M0 APUW50GT3E0

APUW50LT3E0

Ø19.05(3/4) Ø 9.52(3/8)

530-20 40

Indoor unit

Outdoor unit

Indoor unit

Outdoor uni

WIRING CONNECTION

ENGLISH

Electrical wiring

Perform the electrical wiring work according to the electrical wiring connection.

- All wiring must comply with local requirements.

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

- Use a recognized ELCB(Electric Leakage Circuit Breaker) between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted.

- Model of circuit breaker recommended by authorized personnel only

Model Phase(ø) ELCB

APUQ55GT3E0 APUQ55GT3M0 APUW55GT3E0

APUW55GT3M0

APUQ55GT3A0 APUW50GT3E0

1 40 A

APUQ55LT3E0 APUQ55LT3M0

APUW55LT3E0

APUW55LT3M0

APUQ50LT3E0

APUW50LT3E0

3 20 A

WIRING CONNECTION

Main power source

Indoor

ELCB

Switch box

Outdoor

+ 19 hidden pages