LG ARNU48GBRZ2 Manuale utente

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.

P/NO : MFL67798118

www.lg.com

TYPE: Multi V FRESH AIR INTAKE UNIT

Original instruction

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

ΕΛΛΗΝΙΚΆ

ČEŠTINA

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

PORTUGUESE

MAGYAR

БЪЛГАРСKN

SRPSKI

HRVATSKI SVENDKA

Fresh Air Intake Unit Installation Manual

TABLE OF CONTENTS

oFour type "A" screws

oConnecting cable

oPipes: Gas side

Liquid side

(Refer to Product

Data)

oInsulation materials

oAdditional drain pipe

oLevel gauge

oScrew driver

oElectric drill

oHole core drill

oFlaring tool set

oSpecified torque wrenches

(different depending on model No.)

oSpanner .......Half union

oA glass of water

oScrew driver

oHexagonal wrench

oGas-leak detector

oVacuum pump

oGauge manifold

oOwner's manual

oThermometer

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

Check the Drainage.............12

Installation of Wired Remote

ConTroller ............................15

Name and function of wired

remote controller(Optional) .18

Dip Switch Setting of Indoor

unit PCB ...............................19

Group Control Setting..........20

Model Designation ..............24

Airborne Noise Emission.....24

Limiting concentration .........24

How to Set E.S.P? ................25

Outlet Ait Temp &

Air flow rate ...........................27

Installation Requirements Required Parts Required Tools

2Fresh Air Intake Unit

Features

Air filters

Wired Remote Controller

Air intake vents

Air outlet vents

Name

Quantity

Shape for gas pipe

for liquid pipe

Clamp metal

2 EA

Insulation for

fitting

1 SET

Drain hose

1 EA

Clamp

(Tie Wrap)

8 EA

Washer for

hanging backet

4 EA

Others

Standard Accessories

• Owner's manual

• Installation manual

Feature

Installation Manual 3

ENGLISH

4Fresh Air Intake Unit

Safety Precautions

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

■Be sure to read before installing the air conditioner.

■Be sure to observe the cautions specified here as they include important items related to safety.

■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the

following indications.

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

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.

■Installation

Do not use a defective or un-

derrated 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.

Installation Manual 5

Safety Precautions

ENGLISH

■Operation

Do not modify or extend the

power cable.

• There is risk of fire or electric

shock.

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.

Be cautious when unpacking

and installing the product.

• Sharp edges could cause in-

jury. Be especially careful of

the case edges and the fins

on the condenser and evapo-

rator.

For installation, always con-

tact the dealer or an Autho-

rized 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 store or use flammable gas or combustibles near the product.

• There is risk of fire or failure of product.

Use a vacuum pump or Inert (nitrogen) gas when do 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.

6Fresh Air Intake Unit

Safety Precautions

■Installation

Always check for gas (refrig-

erant) leakage after installa-

tion or repair of product.

• Low refrigerant levels may

cause failure of product.

Install the drain hose to en-

sure that water is drained

away properly.

• A bad connection may cause

water leakage.

Keep level even when in-

stalling the product.

• To avoid vibration or water

leakage.

Do not install the product

where the noise or hot air from

the outdoor unit could dam-

age 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 evapora-

tor fins, could cause product

malfunction or inefficient opera-

tion.

If you eat the liquid from the

batteries, brush your teeth and

see doctor. Do not use the re-

mote if the batteries have

leaked.

• The chemicals in batteries

could cause burns or other

health hazards.

Installation Manual 7

Installation

ENGLISH

Read completely, then follow step by step.

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

Installation

Installation Limit

FAU

Outdoor : 20HP

5HP 5HP 5HP 5HP

5HP 5HP 5HP 5HP 5HP

Standard Standard Standard

Outdoor : 20HP

FAU

Outdoor : 10HP

5HP 5HP

FAU

FAU

Standard Standard Standard Standard

* FAU : Fresh Air Intake Unit

Standard: Standard Indoor Unit

1. Fresh Air Intake Unit Combination

No Connection Condition Combination

Only Fresh Air Intake Unit installation

Mixture Installation with standard in-

door units and Fresh Intake Units

11) The total capacity of Fresh Air Intake Unit should be 50~100% of outdoor unit.

2) The max quantity of Fresh Air Intake unit is 2 Units.

1) The total capacity of indoor units (standard Indoor Unit + Fresh Air Intake Unit)

should be 50~100% of outdoor unit.

2) The total capacity of Fresh Air Intake Units should be less than 30% the total ca-

pacity of indoor units.

①Inlet Hood

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

②Intake Air Duct

The Intake Air Duct must have down-slope about 1/30.

The length of Intake Air Duct should be longer than 2m.

③Fresh Air Intake Unit

If wired remote controller is not connected, it will display strange value to the room temperature

④Exhaust Fan

Fresh Air Intake Unit will make room the positive pressure.

Exhaust fan should be installed to maintain the room pressure.

⑤Door

It would be possible to raise in the room air pressure because of Fresh Air Intake Unit.

In that case, the door could hurt someone in front of door.

So be careful of the positive pressure to design the door.

Min. 2m

Outlet Air

Exhaust air

1/30 Slope

Inlet Hood

Intake Air Duct

Fresh Air Intake Unit

Exhaust Fan

Door

3. Installation of intake air duct

CAUTION : Failure to comply with the above connection conditions for installa-

tion, it can cause cooling & heating capacity down.

2. Connection of the Outdoor Unit

It is possible to connect Heat Pump Models.

It is not possible to connect Heat Recovery Models.

8Fresh Air Intake Unit

Installation

4. The Control System

5. Cycle check and SVC

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

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

Separate Fresh Air Intake 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 Fresh Air Intake Unit in

same zone is not possible.

Separate Fresh Air Intake Unit zone with Standard indoor units zone.

FAU

48 kBtu/h

ZONE 1

FAU

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

Standard Standard

ZONE 2

FAU

Set one of the Standard Indoor Unit to Master

StandardStandard Standard

FAU

48 kBtu/h

ZONE 1

FAU

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

Standard Standard

ZONE 2

Slave

* FAU : Fresh Air Intake Unit

Standard: Standard Indoor Unit

Installation Manual 9

Installation

ENGLISH

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 fig-

ure.)

• 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

600600

Front

Inspection hole

(600X600)

Control box

1000

Selection of the best location

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 ap-

propriate anti-corrosion measures.

Minimum height for motor replacement.

Less than 200mm

Hole size should be

more than the size of IDU.

Insufficient space. Difficult for servicing

20cm to 1000mm2

Sufficient space in the ceiling for servicing.

More than 1000mm1

Remarks

Distance between

False ceiling & Actual ceiling

Number of

Inspection hole

[Inspection Hole Standard]

10 Fresh Air Intake Unit

Installation

■Installation of Unit

Install the unit above the ceiling correctly.

• Apply a joint-canvas between the unit and duct to ab-

sorb unnecessary vibration.

• Install the unit leaning to a drainage hole side as a fig-

ure for easy water drainage.

• 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 1

POSITION OF SUSPENSION BOLT

CASE 2

POSITION OF CONSOLE BOLT

Drainage hole

M10 Nut

M10 washer

X 4

M10 Nut

M10 washer X 4

X 8

(G)

B8 Chassis (76/96k)

BR Chassis (48k)

• Throughly study the following installation locations:

1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the fan, the fin of the

heat exchanger, resulting in heat exchange reduction, spraying, dispersing of water drops, etc.

In these cases, take the following actions:

• Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily

steam which should not flow into the suction of the air conditioner.

• Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oil

steam.

2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories, etc.

3. Avoid places where inflammable gas is generated, flows in, is stored or vented.

4. Avoid places where sulfurous acid gas or corrosive gas is generated.

5. Avoid places near high frequency generators.

NOTICE

Ceiling dimension and hanging bolt location

(Unit:mm)

ABCDEFGH I JKL

B8 Chassis

1680 1565 1160 330 460 580 700 1400 1635 390 445 15

(76/96k)

Dimension

Capacity(Btu/h)

(Unit:mm)

ABCDEF(G)H I

BR Chassis 1282 1230 477 56 590 30 120 1006 294

(48k)

Dimension

Capacity(Btu/h)

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