LG
LG Ceiling Duct-Type
Air Conditioner
INSTALLATION MANUAL
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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.
Ceiling Duct Type Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation
Requirements
Safety precautions |
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Installation of Indoor, |
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Outdoor unit................ |
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Connecting Pipes to the |
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Indoor Unit ................ |
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Connecting Pipes to the |
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Outdoor Unit ............. |
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Checking the Drainage |
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Connecting Cables |
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between Indoor Unit and |
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Outdoor Unit ............. |
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Air Purging of the |
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Connecting Pipes and the |
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Indoor Unit ............... |
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Group Control ........... |
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Two Thermistor |
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System....................... |
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E.S.P (External Static |
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Pressure) Setting...... |
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How to set E.S.P?. .... |
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Installation guide at the |
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seaside ...................... |
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Required Parts |
Required Tools |
• Four Type “A” screws |
• Level |
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• Connecting cable |
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• Screw driver |
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• Electric drill |
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• Hole core drill (ø70 mm) |
• Pipes: Gas side .....1/2", 5/8", 3/4" |
• Flaring Tools set |
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Liquid side .............1/4", 3/8", 1/2" |
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• Insulated drain hose |
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• Insulation materials |
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• Additional Drain hose |
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(Inner Dia............... |
25 mm) |
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• Screw driver
• Hexagonal Wrench
(4 mm/5 mm)
• Gas-leak Detector
2 Ceiling Duct Type Air Conditioner
Safety Precautions
Safety Precautions
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.
WARNING |
This symbol indicates the possibility of death or serious injury. |
CAUTION |
This symbol indicates the possibility of injury or damage. |
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
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WARNING
■ Installation
Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.
• There is risk of fire or electric shock.
Install the panel and the cover of control box securely.
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 install a dedicated circuit and breaker.
• There is risk of fire or electric shock. |
• Improper wiring or installation may |
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cause fire or electric shock |
Always ground the product.
•There is risk of fire or electric shock.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
Installation Manual 3
Safety Precautions
Do not modify or extend the power cable. |
Be cautious when unpacking and installing the |
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product. |
• There is risk of fire or electric shock.
•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,
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.
Gasolin
4 Ceiling Duct Type Air Conditioner
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Safety Precautions |
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CAUTION |
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■ Installation |
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Always check for gas (refrigerant) leakage after |
Install the drain hose to ensure that water is |
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installation or repair of product. |
drained away properly. |
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• Low refrigerant levels may cause failure of product. |
• A bad connection may cause water leakage. |
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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.
90°
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.
Installation Manual 5
Installation of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit
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
Top view
(unit: mm)
600
Front view
Inspection hole (600X600)
Control box
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Front |
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H
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.
More than |
Sunroof |
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300 mm |
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Fence |
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obstacles |
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or |
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More than 300 mm
More than 700 mm
6 Ceiling Duct Type Air Conditioner
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Installation of Indoor, Outdoor Unit |
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3) Piping length and the elevation |
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Capacity |
Pipe Size |
Length A(m) |
Elevation B(m) |
*Additional |
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(Diameter:Ø) |
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Gas |
Liquid |
Standard |
Max. |
Standard |
Max. |
refrigerant(g/m) |
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18 kBtu/h |
1/2 "(12.7 mm) |
1/4 "(6.35 mm) |
7.5 |
50 |
5 |
30 |
35 |
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24 kBtu/h |
1/2 "(12.7 mm) |
1/4 "(6.35 mm) |
7.5 |
50 |
5 |
30 |
35 |
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30 kBtu/h |
5/8 "(15.88 mm) |
1/4 "(6.35 mm) |
7.5 |
50 |
5 |
30 |
35 |
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Indoor unit |
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Outdoor unit |
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Outdoor unit |
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A |
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Oil trap |
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Outdoor unit |
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B |
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Indoor unit |
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Indoor unit |
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CAUTION:
•Rated performance for refrigerant line length of:7.5 m
•Capacity is based on standard length and maximum allowance length is on the basis of reliability.
•Improper refrigerant charge may result in abnormal cycle.
•Oil trap should be installed every 10 meters.
Installation Manual 7
Installation of Indoor, Outdoor Unit
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 |
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18 kBtu/h |
932 |
880 |
355 |
45.5 |
450 |
30 |
87 |
750 |
163 |
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24 kBtu/h |
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30 kBtu/h |
1232 1182 |
355 |
45.5 |
450 |
30 |
87 |
830 |
186 |
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36 kBtu/h |
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CASE 2
•Install the unit leaning to a drainage hole side as a figure for easy water drainage.
POSITION OF CONSOLE BOLT
•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.
A |
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B |
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<![if ! IE]> <![endif]>D |
(G) |
<![if ! IE]> <![endif]>F |
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H |
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Drainage hole |
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M10 Nut |
X 4 |
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M10 SP. washer X 4 |
(Local |
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supply) |
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M10 washer |
X 4 |
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M10 washer |
X 4 |
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M10 SP. washer X 4 |
(Local |
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supply) |
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M10 Nut |
X 4 |
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8 Ceiling Duct Type Air Conditioner
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