LG LF300CP User manual

LG Floor Standing Type

Air Conditioner

INSTALLATION MANUAL

website http://www.lgservice.com

e-mail http://www.lgeservice.com/techsup.html

IMPORTANT

• 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.

ENGLISH

2Floor Standing type Air Conditioner

Floor Standing Type Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions..........................................................................................3

Installation of Indoor, Outdoor Unit ..............................................................6

1) Selection of the best location.................................................................................................................................6

2) Indoor Unit Installation...........................................................................................................................................8

3) Outdoor unit installation.........................................................................................................................................8

4) Refrigerant amount................................................................................................................................................8

5) Installation method procedure................................................................................................................................9

6) Preparation of installation parts and tools ...........................................................................................................10

7) Preparation of piping............................................................................................................................................11

8) Connection of piping............................................................................................................................................12

9) Precautions in bending ........................................................................................................................................12

10) Connecting the cable to the indoor unit.............................................................................................................13

11) Connecting the piping to the outdoor unit..........................................................................................................14

12) Connecting the cable to the outdoor unit...........................................................................................................14

13) Power supply and wiring....................................................................................................................................15

14) Vacuum drying of the connecting pipes and the indoor unit..............................................................................16

15) Form the pipe.....................................................................................................................................................17

Final Check andTest Run..........................................................................................18

OUT-LINE OF INSTALLATION

Safety Precautions

Installation Manual 3

ENGLISH

To prevent injury to the user or other people and property damage, the following instructions

must be followed.

■

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.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

■Installation

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 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.

4Floor Standing type Air Conditioner

Safety Precautions

Do not modify or extend the power cable.

• There is risk of fire or electric shock.

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 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 store or use flammable gas or combustibles

near the product.

• There is risk of fire or failure of product.

■Operation

Gasolin

Safety Precautions

Installation Manual 5

ENGLISH

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.

CAUTION

90˚

■Installation

6Floor Standing type Air Conditioner

Installation of Unit

1. Indoor unit

• There should not be any heat source or

steam near the unit.

• There should not be any obstacles to

prevent the air circulation.

• A place where air circulation in the room

will be good.

• A place where drainage can be easily

obtained.

• A place where noise prevention is taken

into consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows

from the wall, ceiling, or other obstacles.

• The indoor unit must keep the

maintenance space.

2. Outdoor unit

• If an awning is built over the unit to prevent

direct sunlight or rain exposure, be careful

that heat radiation from the condenser is

not restricted.

• There should not be any animals or plants

which could be affected by hot air

discharged.

• Ensure the spaces indicated by arrows

from the wall, ceiling, fence or other

obstacles.

Selection of the best location

5cm

40cm

5cm

100cm

More than

30cm

More than

50cm

More than 100cm

than 50cm

Fence or

obstacles

Sunroof

More than

30cm

More than

50cm

Installation of Unit

Installation Manual 7

ENGLISH

3. Piping length and the elevation

CAUTION:

•Capacity is based on standard length and maximum allowance length is on

the basis of reliability.

•Oil trap should be installed every 5~7 meters.

20K 5/8" 1/4" 25 15

28K/30K/40K 5/8" 3/8" 30 20

44K/50K 3/4" 3/8" 40 25

80K 1" 5/8" 50 30

PIPE SIZE

MODEL

GAS SIDE LIQUID SIDE

Max.

Length

A (m)

Max.

Elevation

B (m)

Indoor unit

Outdoor unit

8Floor Standing type Air Conditioner

Installation of Unit

The Indoor Unit Installation

Outdoor unit Installation

200mm

70mm 70mm

90mm

Wall

Core Drill

Tilt

Cut if necessary

More than 15mm

Wall

Plastic tube

(Bushing)

INSIDE OUTSIDE

1.The mounting floor should be strong and solid

enough to prevent it from vibration.

2. Drill the piping hole with 70mm diameter hole-

core drill at either the right or the left of indoor

unit. The hole should be sightly slant to the

outdoor side.

3. Insert the plastic tube through the hole.

4. Cut the extruded outside part of the plastic

tube, if necessary.

1. Install the outdoor unit on the concrete or any solid base securely and horizontally by securing it

with bolts (Ø12mm) and nuts.

2. If there is any vibration transmitted to the building, mount the rubber underneath the outdoor unit.

Refrigerant amount

Before shipment, this air conditioner is filled

with the rated amount of refrigerant including

additional amount required for air-purging,

subject to 5m piping length. (The rated amount

of refrigerant is indicated on the name plate.)

But when the piping length exceeds 5 meters,

additional charge is required according to the

following table.

Example) 28K/30K

In case of 10m long pipe(one-way), the amount

of refrigerant to be replenished is:

(10 - 5) x 30 = 150g

(Unit: g)

REFRIGERANT CHARGE

30 per 1m

40 per 1m

80 per 1m

MODEL

20K/28K/30K/40K

(Btu/h)

44K/50K

(Btu/h)

80K

(Btu/h)

Installation Manual 9

ENGLISH

Installation of Unit

Installation Method

No. Installation works Descriptions

1 Preparation of tools and installation parts Preparation of installation

2 Flaring the pipes To insert the flare nuts, mounted on the

connection parts of both indoor and

outdoor unit, onto the copper pipes.

3 Pipe bending To reduce the flow resistance of refrigerant.

4 Connection of installation parts Connection of long piping

(elbows, socket etc)

5 Tighten the flare nut (outdoor) Connecting the pipings of the outdoor unit.

6 Blowing the pipings To remove dust and scale in working.

7 Tighten the flare nut (indoor) Connecting the pipings of the indoor unit.

8 Check a gas-leakage of the connecting

part of the pipings.

9 Vacuum drying of the piping and indoor unit The air which contains moisture and which

remains in the refrigeration cycle may cause a

malfunction on the compressor

10 Open the 3-way (liquid side) and

3-way (gas side) valves.

11 Form the pipings To prevent heat loss and sweat

12 Checking the drainage (indoor unit) To ensure if water flow drain hose of indoor unit.

13 Connecting the cable between outdoor Preparation of the operating

and indoor unit

14 Connecting the main cable to outdoor unit

15 Supply the power to the crankcase heater To prevent the liquid back to the compressor.

(Before the operating the unit) (Heat pump only)

16 Cooling operation

(Use the remote control or display of the

indoor unit)

10 Floor Standing type Air Conditioner

Installation of Unit

Preparation of installation parts and tools

No. Installation Parts,Tools Use

1 Flaring tool (Ø 6.35 - Ø 19.05) Flaring the pipes

2 Remear Remove burrs from cut edges of pipes.

3 Pipe cutter (MAX 35mm Copper pipe) Cutting the pipings

4 Wrench (H5, H4 hexagonal wrench) To open the service valve

5 Pipe bender Bending the pipings

6 Leak detector Check a gas-leakage of connecting part

of the pipings

7 Manifold gauge

To measure the pressure, to charge the refrigerant

8 Charge-nipple To connect the bombe

9 Vacuum pump To remove the air in the pipe.

10 Charge cylinder balance To measure the refrigerant amount

11 Bombe (Freon-22) Gas charge

Cleaning the pipe

12 Spanner To tighten the connecting parts of the pipings

13 Monkey spanner

14 Driver( , )

15 Benchi (150mm) Cutting the wires

16 Tapeline To measure the length

17 Core drill

To make holes through the concrete wall and blocks

18 Voltmeter, Amperemeter, Clampmeter To measure the current and voltage

19 Insulation resistance tester To measure the insulation resistance

20 Glass thermometer

To measure the intake and outlet air temperature of the indoor unit

21 Copper tubes To use the connecting pipings

22 Insulation material To cover the connecting pipings

23 Tape To finish the connecting pipings

24 Electrical Leakage Breaker To shut off the main power

25 Cable

To connect the cable from outdoor unit to indoor unit

26 Drain hose sockets, elbows To remote the condensing water

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