LG A8UW48GFA0 INSTALLATION MANUAL

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.

MULTI

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INSTALLATION MANUAL

AIR CONDITIONER

MFL67655701

Rev.01_011719

ENGLISH

ESPAÑOL

PORTUGUESE

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 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 :

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

• Do not use a defective or underrated circuit breaker.

- Use the correctly rated breaker and fuse. There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

- Do not disassemble or repair the product by yourself. There is risk of fire or electric shock.

• Always ground the product as per the wiring diagram.

- Do not connect the ground wire to gas or water pipes lightening rod or telephone ground

wire. There is risk of fire or electric shock.

• Install the panel and the cover of control box securely.

- There is risk of fire or electric shock due to dust , water etc.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not modify or extend the power cable.

- If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be

replaced. There is risk of fire or electric shock.

• For installation, removal or reinstall , always contact the dealer or an Authorized Service Center.

- There is risk of fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand.

- Be sure that the installation area does not deteriorate with age. It may cause product to fall.

• Never install the outdoor unit on a moving base or a place from where it can fall down.

- The falling outdoor unit can cause damage or injury or even death of a person.

• In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components.

- Be sure to discharge the capacitor completely before conducting the repair work. An

charged capacitor can cause electrical shock.

• When installing the unit, use the installation kit provided with the product.

- Otherwise the unit may fall and cause severe injury.

• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals.

- Improper or loose connections can cause heat generation or fire.

• Safely dispose off the packing materials.

- Like screws, nails, batteries, broken things etc after installation or svc and then tear away

and throw away the plastic packaging bags. Children may play with them and cause injury.

• Be sure to check the refrigerant to be used.

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Operation

• When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center

• Be sure to use only those parts which are listed in the svc parts list.

• Do not touch , operate, or repair the product with wet hands.

• Do not place a heater or other heating appliances near the power cable.

• Do not allow water to run into electric parts.

• Do not store or use or even allow flammable gas or combustibles near the product.

• Do not use the product in a tightly closed space for a long time.

• Do not open the front grille of the product during operation.

• If strange sound, smell or smoke comes from product.Immediately turn the breaker off or

• Ventilate the product room from time to time when operating it together with a stove, or heating

• When the product is not to be used for a long time, disconnect the power supply plug or turn off the

• Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit.

• Take care to ensure that power cable could not be pulled out or damaged during operation.

• Do not place ANYTHING on the power cable.

• When flammable gas leaks, turn off the gas and open a window for ventilation befor turning on the

IMPORTANT SAFETY INSTRUCTIONS

- Please read the label on the product. Incorrect refrigerant used can prevent the normal operation of the unit.

for repair before using it again.

- There is risk of fire or eletric shock.

- Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

- Hold the plug by hand when taking out. There is risk of electric shock or fire.

- There is risk of fire and electric shock.

- Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.

- There is risk of fire.

- Perform ventilation regularly. Oxygen deficiency could occur and hence harm your health.

- (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

disconnect the power supply cable.

- There is risk of electric shock or fire.

element etc.

- Oxygen deficiency can occur and hence harm your health.

breaker.

- There is risk of product damage or failure, or unintended operation.

- This could result in personal injury and product damage.

- There is risk of fire or electric shock.

product.

- Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

CAUTION

Installation

• Two or more people must lift and transport the product.

- Avoid personal injury.

• Do not install the product where it will be exposed to sea wind (salt spray) directly.

- It may cause corrosion on the product.

• Install the drain hose to ensure that the condensed water is drained away properly.

- A bad connection may cause water leakage.

• Keep level even when installing the product.

- To avoid vibration or noise.

• Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods.

- It may cause a problem for your neighbors and hence dispute.

• Always check for gas (refrigerant) leakage after installation or repair of product.

- Low refrigerant levels may cause failure of product.

• Contact the authorized service technician for repair or maintenance of this unit.

• Contact the installer for installation of this unit.

• When the power cord is to be replaced, replacement work shall be performed by authorized

personnel only using only genuine replacement parts.

IMPORTANT SAFETY INSTRUCTIONS

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

• The user must carry out checks and cleaning of routine to avoid defective performance.

- In a special situation, only service personnel can carry out repair work.

Operation

• Do not use the product for special purposes, such as preserving foods, works of art, etc.

- It is a consumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of property.

• Do not block the inlet or outlet of air flow.

- It may cause product failure.

• Use a soft cloth to clean.

- Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

• Do not touch the metal parts of the product when removing the air filter.

- There is risk of personal injury.

• Do not step on or put anyting on the product.

- (outdoor units) There is risk of personal injury and failure of product.

• Always insert the filter securely after cleaning.

- Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.

• Do not insert hands or other objects through the air inlet or outlet while the product is operating.

- There are sharp and moving parts that could cause personal injury.

• Be cautious when unpacking and installing the product.

- Sharp edges could cause injury.

• If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas.

- The refrigernat gas can cause frostbite (cold burn).

• Do not tilt the unit when removing or uninstalling it.

- The condensed water inside can spill.

• Do not mix air or gas other than the specified refrigerant used in the system.

- If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

• If the refrigerant gas leaks during the installation, ventilate the area immediately.

- Otherwise it can be harmfull for your health.

• Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

• Replace the all batteries in the remote control with new ones of the same type.

- Do not mix old and new batteries or different types of batteries.

- There is risk of fire or product failure.

• Do not recharge or disassemble the batteries.

- Do not dispose off batteries in a fire. They may burn or explode.

• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water.

- Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or

other health hazards.

• If you eat the liquid from the batteries, brush your teeth and see doctor.

- Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or

other health hazards.

• Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open.

- Moisture may condense and wet or damage furniture.

• Do not expose your skin or kids or plants to the cool or hot air draft.

- This could harm to your health.

• Do not drink the water drained from the product.

- It is not sanitary and could cause serious health issues.

• Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height.

- Be careful and avoid personal injury.

• The user must carry out checks and cleaning of routine to avoid defective performance.

- In a special situation, only service personnel can carry out repair work.

• 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.

ENGLISH

TABLE OF CONTENTS

ENGLISH

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY 7 INSTALLATION 8 INSTALLATION OF INDOOR, OUTDOOR UNIT

8 Select the best location 9 Foundation for Installation 10 Piping length and elevation 11 Refrigerant charge

12 FLARING WORK AND CONNECTION OF PIPING

12 Flaring work 13 Connection of piping - Indoor 15 Connection of piping - Outdoor 18 Installation 19 Installation of The Main Unit

20 CONNECTING THE CABLE BETWEEN INDOOR UNIT AND

OUTDOOR UNIT

20 Connect the cable to the Indoor unit 22 Connect the cable to the Outdoor unit 24 Connection of Wiring

25 CHECKING THE DRAINAGE AND FORMING THE PIPINGS

25 Checking the Drainage 26 Forming the Piping

27 AIR PURGING AND EVACUATION

27 Checking method 28 Evacuation

29 INSTALLATION PI485 30 TEST RUNNING 31 FUNCTION

31 DIP S/W Setting 32 Forced Cooling Operation 33 Wiring Error Check 33 Saving Power Consumption 34 Night Quiet Mode 35 Mode Lock

36 MAX COMBINATION CAPACITY 37 INSTALLATION GUIDE AT THE SEASIDE 38 SEASONAL WIND AND CAUTIONS IN WINTER

Installation plate

Type "B" screws

Type "A" screw (6 EA) Type "A" screw (8 EA) Type "A" screw (7 EA)

Holder Remote Control

Type "A" screw and plastic anchors

Figure FigureName

Screw driver

Electric drill

Measuring tape, Knife

Hole core drill

Spanner

Torque wrench

Multi-meter

Hexagonal wrench

Ammeter

Gas-leak detector

Thermometer,

Level

Flaring tool set

Name

INSTALLATION

Installation Parts

INSTALLATION

ENGLISH

Installation Tools

INSTALLATION OF INDOOR, OUTDOOR UNIT

More than 20 cm

More than

10 cm

More than 2.3 m

More than

10 cm

More than 20 cm

More than

10 cm

More than 2.3 m

More than

10 cm

More than 20 cm

than 50 cm

More than 1.5 m

than 50 cm

More than 20 cm

More than

10 cm

More than 2.3 m

More than

10 cm

more than

70 cm

more than

30 cm

more than

30 cm

more than

60 cm

more than 60 cm

more than

70 cm

more than

30 cm

more than 60 cm

more than

30 cm

more than

60 cm

ENGLISH

INSTALLATION OF INDOOR, OUTDOOR UNIT

Read completely, then follow step by step.

Select the best location

Indoor unit

1 Do not have any heat or steam near the

unit.

2 Select a place where there are no obstacles

in front of the unit.

3 Make sure that condensation drainage can

be conveniently routed away.

4 Do not install near a doorway. 5

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

6 Use a stud finder to locate studs to prevent

unnecessary damage to the wall.

CAUTION

Install the indoor unit on the wall where the height from the floors more than 2.3 meters. (ART COOL Type Only 1.5 m)

Outdoor unit

1 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.

2 Ensure that the spaces indicated by arrows

around front, back and side of the unit.

3 Do not place animals and plants in the path

of the warm air.

4 Take the air conditioner weight into account

and select a place where noise and vibration are minimum.

5 Select a place so that the warm air and

noise from the air conditioner do not disturb neighbors.

Rooftop Installations

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

INSTALLATION OF INDOOR, OUTDOOR UNIT

Foundation for Installation

• Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation.

• Fix the unit securely by means of the foundation bolts. (Prepare 4sets of M12 foundation bolts, nuts and washers each which are available on the market.)

• It is best to screw in the foundation bolts until their length are 20mm from the foundation surface.

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Frame

H-Beam

100

Spring washer

Concrete

Nut

Foundation bolt executing method

base

200

Anti-vibration

materials

Four bolt are required 3 thread ridges

200

[Unit:mm]

INSTALLATION OF INDOOR, OUTDOOR UNIT

Branch Pipe

Main Pipe

Distributor

Distributor Type

ENGLISH

Piping length and elevation

Distributor type Models (Unit: m)

Phase

1 Ø

Capacity

(kBtu/h)

40 100 50 50 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15

Total

Length

Max Main Pipe

Length (A/B)

Total Branch

Pipe Length

Max Branch Pipe Length

Max Elevation

(h1)

In - In

Elevation (h2)

CAUTION

Capacity is based on standard length and maximum allowance length is on the basis of reliability. If outdoor unit is at higher elevation than the indoor units, after 24 m of vertical height, 1 oil trap is required.

INSTALLATION OF INDOOR, OUTDOOR UNIT

Refrigerant charge

The calculation of the additional charge should be taken in account for the length of extra pipe.

Distributor type Models (Unit: m)

Main Piping length Branch piping length

Phase Capacity(kBtu/h)

40 5 50 5 20

1 Ø

48 5 50 5 20 56 5 50 5 20 42 5 50 5 20

3 Ø

48 5 50 5 20 56 5 50 5 20

• Distributor type Models

Additional charge (g) = (( Total Main piping Length - Main Standard Length ) x 50 g/m

h CF = Max. number of connectable indoor unit – Total number of connected indoor unit

Ex) Distributor type Model 1 Ø, 40 kBtu/h

abc

7 k

Standard

length(m)

Additional

refrigerant(g/m)

Standard

length(m)

refrigerant(g/m)

+ (A Room Branch Length – Standard Length ) x 20 g/m + (B Room Branch Length – Standard Length ) x 20 g/m + (C Room Branch Length – Standard Length ) x 20 g/m +.. )

- CF(Correction Factor) x 100

• Total main pipe(A+B+C) = 30 m

• Each branch pipe a = 10 m b = 8 m c = 5 m d = 3 m e = 10 m

9 k

*Additional Charge

= ((30-5) x 50 + (10-5) x 20 + (8-5) x 20

18 k

+ (5-5) x 20 + (3-5) x 20 + (10-5) x 20)

- (7-5) x 100 = 1 270 g

9 k

Additional

ENGLISH

FLARING WORK AND CONNECTION OF PIPING

Copper

tube

Slanted Uneven Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

ENGLISH

FLARING WORK AND CONNECTION OF PIPING

Flaring work

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cut the pipes and the cable

- Use the piping kit accessory or the pipes purchased locally.

- Measure the distance between the indoor and the outdoor unit.

- Cut the pipes a little longer than measured distance.

- Cut the cable 1.5 m longer than the pipe length.

Burrs removal

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

- Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

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 flaring work)

Flaring work

- Carry out flaring work using flaring tool as shown below.

Pipe diameter

Inch (mm)

Ø 1/4 (Ø 6.35) 0.04~0.05(1.1~1.3) Ø 3/8 (Ø 9.52) 0.06~0.07(1.5~1.7)

Ø 1/2 (Ø 12.7) 0.06~0.07(1.6~1.8) Ø 5/8 (Ø 15.88) 0.06~0.07(1.6~1.8) Ø 3/4 (Ø 19.05) 0.07~0.08(1.9~2.1)

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

Wing nut type Clutch type

A inch (mm)

0~0.02 (0~0.5)

Bar

"A"

Copper pipe

+ 27 hidden pages

LG A8UW48GFA0 INSTALLATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual