Lg Lmu246hv, Lmu369hv Installation Guide

ENGLISH

P/No: MFL39817319

FLEX MULTI SPLIT INSTALLATION

INSTRUCTIONS

FRANÇAIS ESPAÑOL

2 Multi Air Conditioner

Multi Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation Parts Provided ...................................................3

Product Introduction .............................................................4

Indoor Unit.........................................................................4

Outdoor Unit......................................................................4

Safety Precautions ................................................................5

Installation of Indoor, Outdoor Unit.....................................8

Select the best location ....................................................8

Seaside Applications and Installation..............................10

Piping length and elevation .............................................11

Installation............................................................................12

Connecting the piping .....................................................12

How To Fix ......................................................................15

Wiring Connection...........................................................16

Conduit connection .........................................................16

Ceiling dimension and hanging bolt location ..................17

How to Fix .......................................................................18

Wiring Connection...........................................................18

Conduit connection .........................................................18

Installation of wired Remote Controller ...........................20

Wired remote controller switch information.....................21

Trial Operation.................................................................22

Celsius/Fahrenheit Switching..........................................23

Setting the Central-Control Address ...............................24

ESP Function ..................................................................25

Ceiling dimension and hanging bolt location ..................26

Wiring Connection...........................................................27

Conduit connection .........................................................27

Installation of Wired Remote Controller(Optional) ..........28

Installation of Decorative Panel ......................................30

Drain Piping.....................................................................32

Flaring Work and Connection of Piping............................35

Flaring work.....................................................................35

Connection of piping - Outdoor .......................................36

Connecting the Cable between Indoor Unit and

Outdoor Unit.........................................................................37

Connect the cable to the Indoor unit...............................37

Connect the cable to the Outdoor unit. ...........................38

Connection method of the connecting cable(Example) ..39

Checking the Drainage, Insulating the Pipe and Special

Piping Applications .............................................................40

Insulating the Pipe and Special Piping Applications .......40

Long Pipe Setting ................................................................41

Air Purging and Evacuation ...............................................42

Leak Checking ................................................................42

Evacuation.......................................................................43

Charging ...............................................................................44

Combination indoor units...................................................45

❏ Level gauge ❏ Screw driver ❏ Electric drill ❏ Hole core drill (ø50mm)

❏ Flaring tool set ❏ Specified torque wrenches

1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m (different depending on model No.)

❏ Adjustable wrench

❏ A glass of water ❏ Screw driver

❏ Hexagonal wrench(4mm) ❏ Refrigerant Gas Leak Detector ❏ Vacuum pump ❏ Gauge manifold

❏ Owner's manual ❏ Thermometer ❏ Remote Control Holder

Installation Requirements

Required Tools

Installation Manual 3

ENGLISH

Installation Parts Provided

[Standard /Artcool Mirror Type]

Type 1 Type 2

Installation plate Installation plate

Type "B" screw Type "B" screw

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

[Cealing Concealed Duct Type]

Name

Quantity

Clamp metal

1 EA

Insulation for

fitting

1 set

Screws for

duct flanges

1 set

Remote control holderRemote control holder

Clamp

8 EA

Conduit Bracket

1 EA

Shape

[Cealing Cassette Type]

Name

Quantity

Shape

Drain hose

1 EA

Clamp metal

1 EA

for gas pipe

for liquid pipe

Washer for

hanging backet

8 EA

Clamp

8 EA 1 EA

Conduit Bracket

Screw(M4) 2EA

Conduit Bracket

Screw(M4) 2EA

Insulation for Remote

fitting

1 SET 1 EA

for gas pipe

for liquid pipe

control holder

Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your indoor unit type.

Product Introduction

4 Multi Air Conditioner

Product Introduction

more than

70 cm

(27.6 inch)

more than

60 cm

(23.6 inch)

more than

30 cm

1.8 inch)

more than

30 cm

(11.8 inch)

Air Outlet

Air Intake

(side, rear)

Connection pipe Drain hose

Connecting wire

Control cover

more than 30 cm

(11.8 inch)

Signal receiver

Front panel

Air discharge

ON/OFF button

Power cord

Plasma filter

Air inlet Air filter

Air inlet

Plasma filter (Optional)

Air filter

Air outlet

Front grille ON/OFF button

Signal

receiver

Grille tab

Flap

(Horizontal blade)

Louvers

(Vertical blades)

Cabinet

Air Discharge

Air Inlet

Signal receiver

Front Panel

Air outlet vents

Air Inlet

[Standard Type]

[Cealing Concealed Duct Type]

[Artcool Mirror Type]

[Ceiling Cassette Type]

Air outlet vents

Base plate

Connection pipe Drain hose

Connecting wire

Air intake vents

Indoor Unit

Outdoor Unit

Installation Manual 5

ENGLISH

Safety Precautions

To prevent the injury of 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.

■ The meanings of the symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

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

WARNING

■ Installation

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

Always perform grounding.

• Otherwise, it may cause electrical shock.

Donʼt use a power cord, a plug or a loose socket which is damaged.

• Otherwise, it may cause a fire or electrical shock.

For installation of the product, always contact the service center or a professional installation agency.

• Otherwise, it may cause a fire, electrical 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 air leakage breaker and a dedicated switching board.

• No installation may cause a fire and electrical 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 electrical shock.

6 Multi Air Conditioner

Safety Precautions

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.

Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands.

• Otherwise, it may cause a fire or electrical shock.

Do not use the power cord near the heating tools.

• Otherwise, it may cause a fire and electrical shock.

Do not open the suction inlet of the indoor/outdoor unit during operation.

• Otherwise, it may electrical shock and failure.

Do not allow water to run into electrical parts.

• Otherwise, it may cause the failure of machine or electrical shock.

Hold the plug by the head when taking it out.

• 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 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 cord.

• Otherwise, it may cause a fire or electrical shock.

Do not modify or extend the power cord randomly.

• Otherwise, it may cause a fire or electrical shock.

Take care so that the power cord may not be pulled during operation.

• Otherwise, it may cause a fire or electrical shock.

Unplug the unit if strange sounds, smell, or smoke comes from it.

• Otherwise, it may cause electrical shock or a fire.

Keep the flames away.

• Otherwise, it may cause a fire.

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 cord.

• Otherwise, it may cause a fire or electrical shock.

When the product is submerged into water, always contact the service center.

• Otherwise, it may cause a fire or electrical shock.

Take care so that children may not step on the outdoor unit.

• Otherwise, children may be seriously injured due to falling down.

■ Operation

Installation Manual 7

ENGLISH

Safety Precautions

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.

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.

■ Operation

8 Multi Air Conditioner

Installation of Indoor, Outdoor Unit

Read completely, then follow step by step.

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 unit is unobstructed, allow proper space on all sides according to the arrows and distance measurements in the figures.

6. Use a Metal Detector or Metal Scanner to locate studs to prevent unnecessary damage to the wall.

Select the best location

Top view

Front view

600(23 19/32)

7 5/16

Front

1000(39 3/8)

H=13/16 or more

Capacity(Btu/h class)

9/12k 600(23 5/8) 900(35 15/32)

18k 600(23 5/8) 1100(43 5/16)

Unit:mm(inch)

Ceiling

False ceiling

20(13/16) or more

1500

(59 1/16)

or more

1500(59 1/16) or

Above 2500(98 7/16)

3300(129 15/16) or less

1500(59 1/16)or

Floor

[Cealing Concealed Duct Type] [Cealing Cassette Type]

More than 200(7 7/8)

More than 2300(90 9/16)

More than

100(3 15/16)

More than

100(3 15/16)

Unit:mm(inch)

[Standard /Artcool Mirror Type]

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 the unit is unobstructed, allow proper space on all sides according to the arrows and distance measurements in the figures.

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.

Select a place so that the warm air and sound from the air conditioner does 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

Installation Manual 9

ENGLISH

300(11 13/16) or more

Unit:mm(inch)

10 Multi Air Conditioner

Seaside Applications and Installation

Installation of Indoor, Outdoor Unit

Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.

2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.

3. If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind.

1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction.

In case, to install the outdoor unit on the seaside, set up a windbreaker/barrier, to lessen the unit's exposure to sea air

3) Select a well-drained place.

• It should be strong enough (like concrete) to obstruct the wind from the sea.

• The height and width should be more than 150% of the outdoor unit.

• A minimum of 70cm (27 1/16 inches)

of space between outdoor unit and the windbreak

for easy air flow.

Sea wind Sea wind

Sea wind

Windbreaker/Barrier

Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger using water is recommended.

1. Selecting the location(Outdoor Unit)

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Installation of Indoor, Outdoor Unit

Multi Piping Type

Piping length and elevation

36k 75(246) 25(82) 3(10) 15(49) 7.5(25) 48k

Outdoor Unit

Capacity

(Btu/h class)

Max total length

of all pipes

(A+B)/(A+B+C)/

(A+B+C+D)

Max length of

each pipe (A/B/C/D)

Min length of

each pipe (A/B/C/D)

Max Elevation between each

indoor unit and

outdoor unit (h1)

Max elevation

between indoor

units (h2)

Max.Combination

of Indoor unit

(Btu/h class)

CAUTION: Capacity is based on standard length and maximum allowance length is on the basis of reliability.

9k 9.52(3/8) 6.35(1/4) 7.5(25) 20(0.22)

12k 9.52(3/8) 6.35(1/4) 7.5(25) 20(0.22)

18k 12.7(1/2) 6.35(1/4) 7.5(25) 20(0.22)

Gas Liquid

Standard

Pipe Length

Unit : m(ft)

Additional

Refrigerant

Unit : g/m(oz/ft)

Indoor unit

Capacity

(Btu/h class)

Pipe Diameter

Unit : mm(inch)

Unit : m(ft)

12 Multi Air Conditioner

Installation

1. Prepare the indoor unit's piping and drain hose for installation through the wall.

2. Remove the plastic tubing retainer(see the illustration on the right) and pull the tubing and drain hose away from chassis.

3. Route the indoor tubing and the drain hose to the required piping hole position.

4. Insert the piping, drain hose, and the connecting cable into the piping hole.

Insert the connecting cable into the indoor unit.

• Don't connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection later.

6. Tape the drain hose and the connecting cables.

7. Indoor unit installation

• Hang the indoor unit from the hooks at the top of the installation plate.

• Insert the spacer etc. between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall.

Connecting pipe

Connecting cable

Tape

Drain hose

For right rear piping For left rear piping

Installation

Connecting the piping

[Standard /Artcool Mirror Type]

Connecting

cable

Drain pipe

Indoor unit

Spacer

Installation plate

80(33/16)

Installation

Installation Manual 13

ENGLISH

8. Connecting the piping to the indoor unit and drain hose to drain pipe.

1) Align the center of the pipes and

sufficiently tighten the flare nut by hand.

2) Tighten the flare nut with a wrench.

3) Next, extend the indoor unit's drain hose.

Then attach the drain pipe.

mm inch kgf.m (lbf·ft) Ø6.35 1/4 1.8~2.5 (13~18) Ø9.52 3/8 3.4~4.2 (24~30) Ø12.7 1/2 5.5~6.6 (40~48)

Outside diameter Torque

Installation Information. For left piping. Follow the instruction below.

Good case

• Press on the upper side of clamp and unfold the tubing to slowly downward.

Bad case

• Bending the pipe from right to left may cause damage to the tubing.

Indoor unit tubing Flare nut Pipes

Wrench

Indoor unit tubing

Open-end wrench (fixed)

Flare nut

Connection pipe

Drain pipe

Adhesive

Indoor unit drain hose

Vinyl tape(narrow)

14 Multi Air Conditioner

Installation

9. Wrap the insulation material around the connecting portion.

1) Overlap the connection pipe insulation and

the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there is no gap.

2) Wrap the area which accommodates the

rear piping housing section with vinyl tape.

3) Bundle the piping and drain hose together

by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section.

10. Reroute the pipings and the drain hose

across the back of the chassis.

11. Indoor unit installation

1) Remove the spacer.

2) Ensure that the hooks are properly seated

on the installation plate by moving it left and right.

3) Press the lower left and right sides of the

unit against the installation plate until the hooks engage into their slots(clicking sound).

Vinyl tape(narrow)

Connection pipe

Connecting cable

Indoor unit piping

Pipe

Vinyl tape (wide)

Wrap with vinyl tape

Drain hose

Vinyl tape(narrow)

Pipe

Wrap with vinyl tape(wide)

Plastic bands

Insulation material

Piping for passage through piping hole

Connecting

Drain hose

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