LG LB-H2460CL, LB-G3060CL, LB-H1860CL, LB-G3660CL Installation Manual

ENGLISH

CEILING DUCT TYPE AIR CONDITIONERS

INSTALLATION INSTRUCTIONS

• 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.

P/No.: 3828A20168R

Air filters

(Optional)

Air outlet vents

Air intake vents

Remote Controller

Air Intake

(side, rear)

Connecting Wire

Drain Hose

Power Wire

Connection Tube

Air Outlet

Vents

Air Intake

(side, rear)

Air outlet

Connection Tube

Drain hose

Connecting wire

Control cover

Indoor Unit

Outdoor Unit

ENGLISH

1.The following should be always observed for safety ...............................3

2. Installation of Indoor, Outdoor unit

3. Connecting Pipes to the Indoor Unit

4. Connecting Pipes to the Outdoor Unit

5. Checking the Drainage..............................................................................14

6. Connecting Cables between Indoor Unit and Outdoor Unit

7. Air Purging of the Connecting Pipes and the Indoor Unit ....................18

8. Group Control ............................................................................................19

9. Two Thermistor System ............................................................................19

10. E.S.P (External Static Pressure) Setting................................................20

11. How to set E.S.P?. ...................................................................................21

OUT-LINE OF INSTALLATION

Installation works Installation Parts Required tools

Selection of the best location

............................4

2) Indoor unit installation....5

•

Four Type “A” screws

•

Connecting cable

•

Level

•

Screw driver

•

Electric drill

•

Hole core drill (ø70mm)

1) Preparation of Piping...12

•

Pipes: Gas side .....

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

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

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

•

Insulated drain hose

•

Insulation materials

•

Flaring Tools set

1) Connecting the pipes to

the Outdoor Unit..........14

•

Additional Drain hose

(Inner Dia...............25mm)

1) Connecting cables to the

Indoor Unit...................15

2) Clamping of cables......15

3) Connecting cables to the

Outdoor Unit ................16

4) Form the pipings..........17

•

Screw driver

•

Hexagonal Wrench (4mm/5mm)

•

Gas-leak Detector

ENGLISH

1. The following should be always observed for safety

• 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.

• After reading this manual, be sure to keep it together with the owner's manual in an accessible

place.

Could lead to death, serious injury, etc.

Do not install it yourself (customer).

Perform the installation securely referring to the installation manual.

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

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

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

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

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

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

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 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.

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

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

• Incomplete connecting and fixing could cause fire.

• 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.

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

• 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.

• If the electrical par t 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.

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

WARNING

CAUTION

Do not install the electric heater (18~42K)

• Electr ic heater may cause deformation or fire of blower and housing which were made of plastic.

1. Selection of the best location

1) Indoor unit

Select 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

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.

3) Piping length and the elevation

Indoor unit

Outdoor unit

600600

Top view

(unit: mm)

Front view

Front

Inspection hole

(600X600)

Control box

1000

2. Installation of Indoor, Outdoor Unit

• If 18K Model is installed at a distance of 15m, 225g of refrigerant should be added (15-7.5) x 30g = 225g

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

• Improper refrigerant charge may result in abnormal cycle.

18K BTU/h

30 35 45 45 60 55 50

36K BTU/h(3ø)

30K BTU/h(1ø) 36K BTU/h(1ø)

42K BTU/h(1ø) 42K BTU/h(3ø)

Capacity

Gas 5/8" 5/8"

5/8" 5/8"

5/8" 3/4" 3/4"

Liquid

1/4" 1/4" 1/4" 1/4" 1/4" 3/8" 3/8"

Elevation B(m)

Length A(m)

*Additional refrigerant

(g/m)

Pipe Size

(Diameter: Ø)

Standard

7.5

Standard

5 5 5 5 5 5 5

Max.

50 50 50 50 50 50 50

Max.

30 30 30 30 30 30 30

24K BTU/h

More than 30cm

Fence or

obstacles

Sunroof

More than 30cm

More than 70cm

ENGLISH

2. Indoor unit installation

■ Installation of Unit

Install the unit above the ceiling correctly.

• Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.

• Apply a filter Accessory at air return hole.

• Install the unit leaning to a drainage hole

side as a figure 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

(Unit:mm)

Drainage hole

M10 Nut M10 SP. washer M10 washer

X 4 X 4

(Local supply)

X 4

M10 Nut

M10 SP. washer

M10 washer

X 4 X 4

(Local supply)

X 4

A B

1-3 mm

(G)

18K BTU/h

932 880 355 45.5 450 30 87 750 163

24K BTU/h 30K BTU/h 36K BTU/h 1232 1180 355 45.5 450 30 87 830 186 42K BTU/h

Dimension

Capacity

A B C D E F (G) H I

• 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.

1 Set anchor

Old building New building

2 Plate washer 3 Spring washer

4 Nut 5 Suspension

bolts

Tighten the nut and bolt to prevent unit falling

CAUTION

• Local supply Set anchor Plate washer - M10 Spring washer - M10 Nut - W3/8 or M10 Suspension bolt - W3/8 or M10

ENGLISH

Ceiling

CAUTION

1~3mm

Drainage hole

U-Trap

A ≥ 70mm B ≥ 2C C ≥ 2 x SP SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq A ≥ 70mm B ≥ 40mm C ≥ 20mm

Make sure to be closed.

Unit

Drainage pipe (Local supply)

Thermal insulator

(Local supply)

Drainage hole

CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING

Lay the drain hose with a downward inclination so water will drain out.

Front of view

• Always lay the drain with downward inclination (1/50 to 1/100). Prevent any upward flow or reverse flow in any part.

• 5mm or thicker formed thermal insulator shall always be provided for the drain pipe.

• Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.

Applied U-Trap Dimension

1. Install declination of the indoor unit is very impor tant for the drain of the duct type air conditioner.

2. Minimum thickness of the insulation for the connecting pipe shall be 5mm.

• The unit must be horizontal or declined to the drain hose connected when finished

installation.

CORRECT

INCORRECT

• Upward routing not allowed

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