LG LBNE4881HL INSTALLATION MANUAL

CEILING DUCT TYPE AIR CONDITIONERS

INSTALLATION INSTRUCTIONS

 

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• Please read this instruction sheet completely before installing the product.

• When the power cord is wanted to replace, replacement work shall be performed by authorized

 

personnel only.

 

• Installation work must be performed in accordance with national wiring standards by authorized

 

personnel only.

 

 

 

Indoor Unit

 

 

 

 

Air outlet vents

Air filters(Optional)

 

Air intake vents

 

 

 

Remote Controller

 

 

Outdoor Unit

 

 

 

(Side)

(Rear)

 

 

Air intake vents

 

 

 

Air outlet vents

 

 

 

 

 

Control cover

 

 

 

Connecting wire

 

 

Piping

 

 

 

Drain hose

 

 

Air outlet vents

(Side)

 

 

(Rear)

(Side)

 

 

Air intake

 

 

 

Air intake

Control Cover

 

vents

 

 

vents

 

 

 

 

Control cover

Air outlet

Connecting Wire

 

 

 

 

 

Connecting wire

vents

Connection Pipe

 

 

Drain Hose

 

Piping

 

 

 

Drain hose

 

 

 

P/No.: 3828A20021G

OUT-LINE OF INSTALLATION

1.The following should be always observed for safety ...............................

3

 

 

 

 

 

 

 

 

Installation works

 

 

 

Installation Parts

 

Required tools

 

 

 

 

 

 

 

 

2. Installation of Indoor, Outdoor unit

 

 

 

 

1) Selection of the best

 

 

 

Four Type “A” screws

 

Level

 

location............................

4

 

 

Connecting cable

 

 

Screw driver

 

2) Indoor unit installation....

5

 

 

 

 

 

Electric drill

 

 

 

 

 

 

 

 

Hole core drill (ø 70mm)

 

3. Connecting Pipes to the Indoor Unit

 

 

 

 

1) Preparation of Piping...

12

 

 

Pipes: Gas side .....

1/2", 5/8", 3/4"

 

Flaring Tools set

 

 

 

 

 

Liquid side .............

1/4", 3/8", 1/2"

 

 

 

Insulated drain hose

Insulation materials

4.Connecting Pipes to the Outdoor Unit

1) Connecting the pipes to

Additional Drain hose

 

 

the Outdoor Unit ..........

14

(Inner Dia...............

25mm)

 

5.

Checking the Drainage ..............................................................................

 

 

14

6.

Connecting Cables between Indoor Unit and Outdoor Unit

 

1) Connecting cables to the

 

Screw driver

 

 

Indoor Unit ...................

15

 

 

 

2) Connecting cables to the

 

 

 

 

Outdoor Unit ................

16

 

 

 

3) Form the pipings ..........

17

 

 

 

7.

Air Purging of the Connecting Pipes and the Indoor Unit ....................

18

 

 

 

 

Hexagonal Wrench (4mm/5mm)

 

 

 

 

Gas-leak Detector

 

8.

Group Control ............................................................................................

 

 

 

19

9.

Two Thermistor System

............................................................................

 

19

10. High-Static Motor Connection (For 60K/48K Model) ............................

19

11. External Static Pressure & Air Flow.......................................................

 

20

2

 

1. The following should be always observed for safety

 

 

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• Please report to or take consent by the supply authority before connecting to the system.

 

• Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before

 

 

installing the air conditioner.

 

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

 

• The indications and meanings are as follows.

 

 

 

 

 

 

 

 

 

 

WARNING

Could lead to death, serious injury, etc.

 

 

CAUTION

Could lead to serious injury in particular environments when operated incorrectly.

 

 

 

 

• After reading this manual, be sure to keep it together with the instruction manual in a handy place .

 

WARNING

Do not install it yourself (customer).

Incomplete installation could cause injury due to fire, electric shock, the unit falling or a leakage of water. Consult the dealer from whom you purchased the unit or special installer.

Install the unit securely in a place which can bear the weight of the unit.

When installed in an insufficient strong place, the unit could fall causing injured.

Use the specified wires to connect the indoor and the outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections.

• Incomplete connecting and fixing could cause fire.

Check that the refrigerant gas do not leak after installation is completed.

Perform the installation securely referring to the installation manual.

Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or a leakage of water.

Perform electrical work according to the installation manual and be sure to use an exclusive circuit.

If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.

Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely.

If the electrical part cover if the indoor unit and/or the service panel if the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

Be sure to use the part provided or specified parts for the installation work.

The use of defective parts could cause an injury or leakage of water due to a fire, electric shock, the unit falling, etc.

CAUTION

Perform the drainage/piping work securely according to the installation manual.

If there is a defect in the drainage/piping work, water could drop from the unit and household goods could be wet and damaged.

Do not install the unit in a place where an inflammable gas leaks.

If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.

3

2. Installation of Indoor, Outdoor Unit

1. Selection of the best location

Top view

 

 

Inspection hole

 

 

 

(600X600)

 

1) Indoor unit

 

 

 

 

(unit: mm)

 

 

Control box

 

Select location

 

 

 

 

 

 

 

 

 

Install the air conditioner in the location that

 

 

 

 

 

 

satisfies the following conditions.

 

 

 

 

 

600

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600

• The place shall easily bear a load exceeding

 

 

 

 

 

 

 

 

four times the indoor unit’s weight.

 

 

 

 

 

Front

 

• The place shall be able to inspect the unit as

 

 

 

 

 

Front view

 

 

 

the figure.

 

 

 

 

 

 

 

• The place where the unit shall be leveled.

 

 

 

 

 

 

• The place shall allow easy water

 

 

 

 

 

 

 

 

drainage.(Suitable dimension “H” is necessary

 

 

 

 

H

 

to get a slope to drain as figure.)

 

 

 

 

 

 

 

• The place shall easily connect with the

 

 

 

 

 

 

 

outdoor unit.

 

 

 

 

30cm

 

Sunroof

 

electrical noise.

 

 

 

 

 

 

• The place where the unit is not affected by an

More

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The place where air circulation in the room will

 

 

 

 

 

 

be good .

 

 

 

 

 

 

 

 

 

 

• There should not be any heat source or steam

 

Fence

 

 

 

 

near the unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

obstacles

 

 

30cm

• If an awning is built over the unit to prevent

 

 

 

2) Outdoor unit

 

 

 

 

 

or

 

 

More than

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

direct sunlight or rain exposure, be careful

 

 

 

 

More than

 

that heat radiation from the condenser is

 

 

 

 

 

 

 

 

 

70cm

 

 

not restricted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• There should not be any animals or plants

 

 

 

 

Fence or

than 120cm

 

which could be affected by hot air

 

 

 

 

 

obstacles

 

discharged.

 

 

 

 

More than

 

 

 

 

• Ensure the spaces indicated by arrows from

 

 

 

 

90cm

 

 

 

 

 

the wall, ceiling, fence or other obstacles.

 

 

 

 

 

 

 

 

 

 

 

Following descriptions are for the Top Discharge

 

 

 

 

 

 

Type outdoor unit.

 

 

 

 

 

 

 

 

 

 

• 120Cm clearance required on top of unit.

 

 

obstacles

 

More than 90cm

Two of the remaining three sides may be 30cm.

 

 

• 60Cm clearance required between units for proper airflow.

 

Fence

or

 

 

More than

One side must be 90cm for service.

 

 

 

 

 

 

90cm

 

 

 

 

 

 

 

 

3) Piping length and the elevation

 

 

 

 

More than 90cm

 

 

 

 

 

 

 

 

Pipe Size

Length A(m)

Elevation B(m)

*Additional

 

 

 

Capacity

(Diameter: Ø)

refrigerant

 

 

 

 

 

 

 

 

 

 

 

 

Gas

Liquid

Standard

Max.

Standard

Max.

(g/m)

 

 

 

 

18K BTU/h(50Hz)

5/8"

1/4"

7.5

50

5

30

25

 

 

Indoor unit

 

24K

H/P

5/8"

1/4"

7.5

50

5

30

30

 

 

 

 

 

 

 

BTU/h

C/O

5/8"

1/4"

7.5

50

5

30

25

 

 

 

 

30K BTU/h

5/8"

3/8"

7.5

50

5

30

50

 

 

 

 

36K BTU/h

5/8"

3/8"

7.5

50

5

30

40

 

 

 

A

42K/48K BTU/h

3/4"

3/8"

7.5

50

5

30

50

 

 

 

 

 

 

 

60K BTU/h

3/4"

1/2"

7.5

50

5

30

100

 

 

B

 

(LB-E6082CL)

 

 

 

Outdoor unit

 

 

 

 

 

 

 

 

 

 

60K BTU/h

3/4"

1/2"

7.5

50

5

30

60

 

 

 

 

(LB-E6081)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If 18K Model is installed at a distance of 15m,

188g of refrigerant should be added (15-7.5) x 25g = 188g

Capacity is based on standard length and maximun allowance length is on the basis of reliability.

4

LG LBNE4881HL INSTALLATION MANUAL

2.Indoor unit installation

Installation of Unit

Install the unit above the ceiling correctly.

CASE 1

POSITION OF SUSPENSION BOLT

-canvas between the unit and unnecessary vibration.

Accessory at air return hole.

(Unit:mm)

Dimension

Capacity

A

B

C

D

E

F

(G)

H

I

 

 

 

 

 

 

 

 

 

18K BTU/h

942

880

466

54

575

30

87

750

186

24K BTU/h

942

880

466

54

575

30

87

750

186

30K BTU/h

1242 1180

492

54

600

30

87

830

186

36K BTU/h

1072

1010

492

54

600

30

87

750

186

(LB-C36)

36K BTU/h

1242

1180

492

54

600

30

87

830

186

(LB-F36)

42K BTU/h

1242 1180

492

54

600

30

87

830

186

48K BTU/h

1292

1230

650.5

54

760

30

120

1006

294

(LB-B48)

48K BTU/h

1292 1230

570.5

54

680

30

120

1006

294

(LB-E48)

 

 

 

 

 

 

 

 

 

60K BTU/h

1292 1230

650.5

54

760

30

120

1006

294

(LB-B60)

 

 

 

 

 

 

 

 

 

60K BTU/h

1292 1230

570.5

54

680

30

120

1006

294

(LB-E60)

 

 

 

 

 

 

 

 

 

CASE 2

leaning to a drainage hole for easy water drainage.

POSITION OF CONSOLE BOLT

the unit will be leveled and the weight of the unit.

the unit can withstand its

service can be easily

A

B

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(G)

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H

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Drainage hole

M10 Nut

X 4

 

M10 SP. washer X 4

(Local

supply)

M10 washer

X 4

 

M10 washer

X 4

 

M10 SP. washer X 4

(Local

supply)

M10 Nut

X 4

 

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5

Select and mark the position for fixing bolts.

Drill the hole for set anchor on the face of ceiling.

Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling.

Mount the suspension bolts to the set anchor firmly.

Secure the installation plates onto the suspension bolts (adjust level roughly) using nuts, washers and spring washers.

CAUTION

prevent

Old building

 

New building

1

Set anchor

2

Plate washer

3

Spring washer

4

Nut

 

5 Suspension

 

bolts

 

• Local supply

 

Set anchor

 

Plate washer

- M10

Spring washer

- M10

Nut

 

- W3/8 or M10

Suspension bolt

- W3/8 or M10

6

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