LG ARNU483BRZ4 INSTALLATION MANUAL

INSTALLATION MANUAL

AIR CONDITIONER

ENGLISH FRANÇAIS ESPAÑOL

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 V Outside Air Unit

Original instruction

MFL69440014

Rev.00_012018

www.lg.com

Outside Air Unit Installation Manual

TABLE OF CONTENTS

Installation Requirements

Features...................................3

Safety Precautions.................4

Installation

Installation limit ......................7

Selection the best location....9

Ceiling opening dimension

and hanging bolt location....10

Indoor Unit Installation.........11

Wiring Connection ...............11

Checking the Drainage .......12

Indoor Unit Drain Piping......13

Required Parts Required Tools

o Level gauge o Four type "A" screws o Connecting cable

o Pipes: Gas side

Liquid side (Refer to Product Data)

o Insulation materials o Additional drain pipe

o Screw driver

o Electric drill

o Hole core drill

o Flaring tool set

o Specified torque wrenches

(different depending on model No.)

o Spanner.......Half union

o A glass of water

o Screw driver

o Hexagonal wrench

o Gas-leak detector

o Vacuum pump

o Gauge manifold

Dip Switch Setting ...............15

Group Control Setting .........16

Model Designation ..............21

Airborne Noise Emission ....21

Limiting concentration .........21

How to Set E.S.P?................22

2 Indoor Unit

o Owner's manual

o Thermometer

Features

Feature

ENGLISH

Wired Remote Controller

Installation Tool

Name Drain hose Clamp metal

Quantity

Shape

1 EA 2 EA 8 EA 4 EA 1 SET 1 EA

Air outlet vents

Air intake vents

Washer for

hanging

bracket

Clamp

(Tie Wrap)

Air filters

Insulation for

fitting

for gas pipe

for liquid pipe

Wired Remote

Controller

(Other)

• Owner's manual

• Installation manual

Installation Manual 3

Safety Precautions

WARNING

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

n Be sure to read before installing the air conditioner. n Be sure to observe the cautions specified here as they include important items related to safety. n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the

following indications.

This symbol indicates the possibility of death or serious injury.

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

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

Be sure not to do.

Be sure to follow the instruction.

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.

• 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.

4 Indoor Unit

Safety Precautions

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 small 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.

• 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.

ENGLISH

Installation Manual 5

Safety Precautions

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.

• 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.

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 anyting 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.

• 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.

6 Indoor Unit

Installation

Installation Limit

Read completely, then follow step by step.

1. Outside Air Unit Combination

No Connection Condition Combination

Only Outside Air Unit instal-

lation

Mixture Installation with

standard indoor units and Outside Air Units

CAUTION : Failure to comply with the above connection conditions for installation, it can cause cooling & heating capacity down.

2. Connection of the Outdoor Unit

Outdoor : 10HP

OAU

5HP 5HP

The total capacity of Outside Air Unit should be 50~100% of outdoor unit.

2) The max quantity of Outside Air Unit is 2 Units.

1) The total capacity of indoor units (standard Indoor Unit + Outside Air Unit) should be 50~100% of outdoor unit.

2) The total capacity of Outside Air Units should be less than 30% the total capacity of indoor units.

Outdoor : 20HP

OAU

Standard Standard Standard

5HP

5HP 5HP 5HP

Installation

ENGLISH

Outdoor : 20HP

OAU

Standard Standard Standard Standard

5HP 5HP 5HP 5HP 5HP

▶ The total capacity of indoor units exceed 100% of outdoor unit.

3. Installation of intake air duct

① Inlet Hood

Min. 78.7 inch

1/30 Slope

Inlet Hood

Intake Air Duct

Outside Air Unit

Exhaust Fan

Door

Outlet Air

Inlet Hood should be installed such that no water enter inside the unit

② Intake Air Duct

The Intake Air Duct must have down-slope about 1/30. The length of Intake Air Duct should be longer than 78.7 inch.

③ Outside Air Unit

If wired remote controller is not connected, it will display strange

Exhaust air

value to the room temperature

④ Exhaust Fan

Outside Air Unit will make room the positive pressure. Exhaust fan should be installed to maintain the room pressure.

⑤ Door

It would be possible to raise in the room air pressure because of Outside Air Unit. In that case, the door could hurt someone in front of door. So be careful of the positive pressure to design the door.

* OAU : Outside Air Unit Standard: Standard Indoor Unit

Installation Manual 7

Installation

OAU

48 kBtu/h

ZONE 1

OAU

48 kBtu/h 48 kBtu/h 48 kBtu/h

Standard Standard

ZONE 2

OAU

48 kBtu/h

ZONE 1

OAU

48 kBtu/h 48 kBtu/h 48 kBtu/h

Standard Standard

ZONE 2

OAU

Set one of the Standard Indoor Unit to Master

StandardStandard Standard

Slave

* OAU : Outside Air Unit Standard: Standard Indoor Unit

4. The Control System

In case of connecting with Standard indoor units, Standard indoor unit should be a master unit.

Separate Outside Air Unit with Standard indoor units Set only one of Standard indoor units to Master,

2) In case of using central remote controller, mixture of indoor units and Outside Air Unit in same zone is not possible.

Separate Outside Air Unit zone with Standard indoor units zone.

5. Wired Remote Controller

The products will only be controlled with the supplied wired remote controller. Other wired remote controller will not be using the correct product.

6. Cycle check and SVC

For Outside Air Unit cycle check and SVC, LG MV 5.8 or later version should be used.

8 Indoor Unit

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.

Installation

ENGLISH

Top view

(unit: inch)

Inspection hole

(23.6 x 23.6)

Control box

23.623.6

39.4

Front

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 measures.

[Inspection Hole Standard]

Number of

inspection hole

1 More than 39.4 inch

2 7.9 inch to 39.4 ich

Hole size should be more

than the size of IDU.

Distance between

false ceiling & actual ceiling

Less than 7.9 inch

Remarks

Sufficient space in the ceiling for servicing.

Insufficient space. Difficult for servicing

Minimum height for motor replacement.

Installation Manual 9

+ 18 hidden pages