LG ARNU48GM3A4 INSTALLATION MANUAL

INSTALLATION MANUAL

AIR CONDITIONER

ENGLISH

ESPAÑOL

PORTUGUÊS

Please read this installation manual completely before installing the product. Installation work must be performed in accordance with the national wiring standards by authorized personnel only. Please retain this installation manual for future reference after reading it thoroughly.

Ceiling Concealed Duct – High / Middle Static

Original instruction

MFL65003111

Rev.03_072619

www.lg.com

TABLE OF CONTENTS

3 FEATURES

4 SAFETY PRECAUTIONS

8 INSTALLATION

8 Selection of the best location

9 Ceiling dimension and hanging bolt location

10 Indoor Unit Installation

11 Wiring Connection

12 Checking the Drainage

14 Indoor Unit Drain Piping

16 DIP Switch Setting

17 Group Control Setting

21 Model Designation

21 Airborne Noise Emission

21 Limiting concentration

22 HOW TO SET E.S.P?

2 Indoor Unit

Features

Remote Controller

Air inlet vents

Air outlet vents

(Accessory)

Features

ENGLISH

Installation Tool

Name Drain hose Clamp metal

Quantity

1 EA 2 EA 8 EA 4 EA 1 SET

Air outlet vents

Air intake vents

Wired Remote Controller (Accessory)

Washer for

hanging bracket

Clamp

(Tie Wrap)

Air filters

Insulation for

fitting

(Other)

• Owner's manual Installation manual

•

Shape

for gas pipe

for liquid pipe

Installation Manual 3

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

WARNING

CAUTION

n Meanings of symbols used in this manual are as shown below.

Installation

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.

- 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. There is risk of fire or electric shock.

• Always ground the product.

- 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.

• Always install a dedicated circuit and breaker.

- Improper wiring or installation may cause fire or electric shock.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not modify or extend the power cable.

- There is risk of fire or electric shock.

• Do not install, remove, or re-install the unit by yourself (customer).

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

• Be cautious when unpacking and installing the product.

- Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.

• For installation, 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.

- It may cause injury, accident, or damage to the product.

• Be sure the installation area does not deteriorate with age.

- If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

WARNING

4 Indoor Unit

Safety Precautions

• 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.

• 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.

Operation

• 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.

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

- There is risk of fire or electric shock.

• Do not place anything on the power cable.

- There is risk of fire or electric shock.

• Do not plug or unplug the power supply plug during operation.

- There is risk of fire or electric shock.

• Do not touch(operate) the product with wet hands.

- There is risk of fire or electrical shock.

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

- There is risk of fire and electric shock.

• Do not allow water to run into electric parts.

- It may cause There is risk of fire, failure of the product, or electric shock.

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

- There is risk of fire or failure of product.

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

- Oxygen deficiency could occur.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

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

• If strange sounds, or smell or smoke comes from product. Turn the breaker off or disconnect the power supply cable.

- There is risk of electric shock or fire.

• Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.

- There is risk of property damage, failure of product, or electric shock.

• Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)

- There is risk of physical injury, electric shock, or product failure.

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

- There is risk of fire or electric shock.

• Be cautious that water could not enter the product.

- There is risk of fire, electric shock, or product damage.

• Ventilate the product from time to time when operating it together with a stove, etc.

- There is risk of fire or electric shock.

• Turn the main power off when cleaning or maintaining the product.

- There is risk of electric shock.

ENGLISH

Installation Manual 5

Safety Precautions

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

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

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

- This could result in personal injury and product damage.

CAUTION

Installation

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

- Low refrigerant levels may cause failure of product.

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

- A bad connection may cause water leakage.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

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

- It may cause a problem for your neighbors.

• Use two or more people to 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. Corrosion, particularly on the condenser and evaporator fins,

could cause product malfunction or inefficient operation.

Operation

• Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)

- This could harm to your health.

• 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, 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. They are very sharp!

- There is risk of personal injury.

• Do not step on or put anything on the product. (outdoor units)

- There is risk of personal injury and failure of product.

• Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

- A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or

damage.

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

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

• Do not drink the water drained from the product.

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

6 Indoor Unit

Safety Precautions

• Use a firm stool or ladder when cleaning or maintaining the product.

- Be careful and avoid personal injury.

• 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 explosion.

• Do not recharge or disassemble the batteries. Do not dispose of 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.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

ENGLISH

Installation Manual 7

Installation

Front view (Unit: mm)

(Unit: mm)

Top view

Front

Inspection hole(1) 600 x 600

Inspection hole(2) 600 x 600

Control box

1 000

Air outlet vents

Air inlet vents

600

More than 20

Installation

Read completely, then follow step by step.

Selection of the best location

Install the air conditioner in the location that satisfies the following conditions.

• 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

CAUTION

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

Inspection hole

(600X600)

Control box

600600

1 000

Front

measures.

[Inspection Hole Standard]

Number of

inspection hole

Hole size should be more

than the size of IDU.

1 More than 100 cm

2 20 cm to 100 cm

Distance between

false ceiling & actual ceiling

Less than 20 cm

Remarks

Sufficient space in the ceiling for servicing.

Insufficient space. Difficult for servicing

Minimum height for motor replacement.

8 Indoor Unit

Ceiling dimension and hanging bolt location

n Installation of Unit

Install the unit above the ceiling correctly.

CASE 1

POSITION OF SUSPENSION BOLT

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

Installation

ENGLISH

BH Chassis

M2/M3 Chassis

A B

(G)

M10 Nut

M10 washer

M10 Nut

Drainage hole

X 4

X 8

B8 Chassis

(Unit:mm)

Dimension

A B C D E F (G) H I

Chassis

A B C D E F G H I J K L

Chassis

932 882 355 47 450 30 87 750 158

Dimension

A B C D E F G H I J

933.4 971.6 619.2 700 30 270 15.2 858 201.4 900

1 283.4 1 321.6 619.2 700 30 270 15.2 1 208 201.4 1 250

1 283.4 1 321.6 619.2 700 30 360 15.2 1 208 291.4 1 250

Dimension

1 680 1 565 1 160 330 460 580 700 1 400 1 635 390 445 15

M10 Nut

M10 washer

X 4

M10 washer

J A

Drain hole

M10 Nut

X 4

X 8

Installation Manual 9

+ 18 hidden pages