LG AUUH488C INSTALLATION MANUAL
website http://www.lgservice.com
LG
LG
Air Conditioner
INSTALLATION MANUAL
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.
<![endif]>ESPAÑOL ENGLISH
Air Conditioner Installation Manual
TABLE OF CONTENTS
Installation |
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Requirements |
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Safety Precautions ..... |
3 |
Installation of Indoor, |
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Outdoor unit ................ |
6 |
The indoor unit |
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installation................... |
9 |
Remote controller |
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installation................. |
23 |
Wiring connection .... |
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Connecting Pipes to |
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the Indoor Unit .......... |
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Installation to |
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decorative panel ....... |
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Indoor unit drain |
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piping ......................... |
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Test running .............. |
32 |
Optional operation.... |
34 |
Installation guide |
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at the seaside............ |
40 |
Required Parts
•Connecting cable
•Four Type "A" Screw
•Hanging Bolt
(W 3/8 or M10 length 650 mm)
•Pipes: Gas side Liquid side
•Insulated drain hose
•Additional Drain hose Inner Dia
Cassette type............ |
32 mm |
Duct type................... |
25 mm |
Convertible type........ |
25 mm |
Required Tools
•Level
•Screw driver
•Electric drill
•Hole core drill (ø70 mm)
•Flaring Tools set
•Torque Wrenches
•Hexagonal Wrench (4 mm, 5 mm)
•Gas-leak detector
•Owner’s Manual
•Thermometer
2 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.
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.
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.
•Improper wiring or installation may 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.
<![endif]>ENGLISH
Installation Manual 3
Safety Precautions
Do not modify or extend the power cable.
Be cautious when unpacking and installing the 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.
Do not install the product on a defective installation stand.
• There is risk of fire, electric shock, explosion, or injury. 
• 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
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.
■ Operation
Do not store or use flammable gas or combustibles near the product.
• There is risk of fire or failure of product.
Gasolin
It is recommended to install the indoor unit into the one big space, rather than into the some small spaces.
4 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) |
hose to ensure that water is |
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installation or repair of product. |
properly. |
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• Low refrigerant levels may |
may cause water leakage. |
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Keep level even when installing |
the product where the noise or hot air |
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unit could damage the |
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• To avoid vibration or water |
a problem for your neighbors. |
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90˚
Use two or more people to lift product.
• Avoid personal injury.
the product where it will be sea wind (salt spray) directly.
corrosion on the product. particularly on the condenser and fins, could cause product
or inefficient operation.
Installation Manual 5
Installation of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit
Selection
of
the
best
location
1. Indoor unit Cassette type
•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.
Ceiling |
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<![if ! IE]> <![endif]>more |
Ceiling Board |
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Ceiling Board |
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<![if ! IE]> <![endif]>or |
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<![if ! IE]> <![endif]>30 |
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<![if ! IE]> <![endif]>less |
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50 or |
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50 or |
<![if ! IE]> <![endif]>30 or |
more |
<![if ! IE]> <![endif]>100 |
<![if ! IE]> <![endif]>250 |
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more |
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<![if ! IE]> <![endif]>Above |
<![if ! IE]> <![endif]>330 or |
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Unit:cm |
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Floor |
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Duct type
•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 |
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Inspection hole |
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(unit: mm) |
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Control box |
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600 |
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Front
Front view
H
6 Air Conditioner
Convertible type
•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.
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.
Installation of Indoor, Outdoor Unit
More than |
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200 mm |
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More than |
<![if ! IE]> <![endif]>ENGLISH |
200 mm |
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More than eye-level |
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(Ceiling installation) |
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More than |
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200 mm |
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More than |
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200 mm |
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(Floor/Wall installation) |
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Sunroof |
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More than 500 mm
Fence 
obstaclesor
More than 3500cmmm
More than 500 mm
More than 1000 mm
Installation Manual 7
Installation of Indoor, Outdoor Unit
3.Piping length and the elevation
Install the branch pipe so that pipe length and difference between high and low will not exceed below SPEC.
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L2 |
Branch |
Spec. |
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L3 |
Pipe Length(m) |
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Total(Main+Branch) |
110 |
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Main Pipe(L1) |
50 |
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Branch Pipe----Total |
60 |
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L4 |
Each |
15 |
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h2 |
30 |
h1 |
L5 |
In out (h1) |
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In-In (h2) |
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L1+L2/L3/L4/L5 |
65 |
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Indoor-Indoor_(b) |
10 |
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Main (L1) |
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•When installing the branch pipe, direction and angle of installation is not limited.
•Take care so that burrs and foreign material may not enter into the cutting surface when connecting.
•Connect a gas pipe of Ø19.05 by using the socket in the indoor unit and connect remaining those by cutting or direct insertion to the diameter of pipe.
•Don’t use the liquid pipe by too bending or twisting.
4. Refrigerant Additional Charging Method
For additional charging method, see below table.
Single |
(L1-30)*0.07 |
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Duo |
(L1-30)*0.07+(L2+L3-20)*A |
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Trio |
(L1-30)*0.07+(L2+L3+L4-20)*A |
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Quartet |
(L1-30)*0.07+(L2+L3+L4+L5-20)*A |
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Branch pipe |
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A |
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Liquid side |
Ø6.35 |
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0.03 |
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Ø9.52 |
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0.05 |
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<Ref. Addition charging method>
(L1=Main Pipe, L2~L5 : Branch Pipe
CAUTION:
•Rated performance for refrigerant line length of:7.5m
•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.
8 Air Conditioner
The indoor unit installation
The indoor unit installation
1. Cassette type
• The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions.
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600 (Ceiling opening) |
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790 (Ceiling opening) |
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875 (Ceiling opening) |
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39.5 |
521(Hanging bolt) |
39.5 |
109 |
572(Hanging bolt) |
109 |
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45 |
785 (Hanging bolt) |
45 |
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<![if ! IE]> <![endif]>Unit570size |
<![if ! IE]> <![endif]>75 |
<![if ! IE]> <![endif]>(Ceiling600 opening) |
<![if ! IE]> <![endif]>sizeUnit744 |
<![if ! IE]> <![endif]>66 |
<![if ! IE]> <![endif]>(Ceiling790 opening) |
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<![if ! IE]> <![endif]>Unit840size |
<![if ! IE]> <![endif]>101.5 |
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<![if ! IE]> <![endif]>75 |
<![if ! IE]> <![endif]>66 |
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<![if ! IE]> <![endif]>101.5 (Ceiling875 opening) |
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570 Unit size |
<![if ! IE]> <![endif]>bolt) (Hanging 450 |
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744 Unit size |
<![if ! IE]> <![endif]>bolt) (Hanging 658 |
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840 Unit size |
<![if ! IE]> <![endif]>bolt) (Hanging 672 |
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Unit:mm |
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Unit:mm |
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Unit:mm |
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• Select and mark the position for fixing bolts |
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Ceiling |
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and piping hole. |
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• Decide the position for fixing bolts slightly |
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Level gauge |
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the direction of drain hose. |
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• Drill the hole for anchor bolt on the wall. |
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CAUTION: |
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Ceiling board |
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• This air-conditioner uses a drain pump. |
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• Horizontly install the unit using a |
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level gauge. |
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• During the installation, care should be |
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taken not to damage electric wires. |
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NOTICE
•Thoroughly study the following installation locations:
1.In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
•Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner.
•Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam.
Air conditioner
Take enough distance
Use the ventilation fan for smoke-collecting hood with sufficient capacity.
Cooking table
2.Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories, etc.
3.Avoid places where inflammable gas is generated, flows in, is stored or vented.
4.Avoid places where sulfurous acid gas or corrosive gas is generated.
5.Avoid places near high frequency generators.
<![endif]>ENGLISH
Installation Manual 9
The Indoor Unit Installation
Hanging bolt (W3/8 or M10)
Nut (W3/8 or M10)
Spring washer (M10)
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Ceiling |
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Keep the length of the bolt |
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Air Conditioner body |
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<![if ! IE]> <![endif]>150mm |
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Flat washer for M10 |
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from the bracket to 40mm |
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(accessory) |
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Ceiling board |
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Ceiling board |
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Flat washer for M10 |
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Paper model |
Set screw of |
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Nut |
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for installation |
paper model (4 pieces) |
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(W3/8 or M10) |
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Adjust the same height |
Open the ceiling board |
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along the outer edge of the |
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paper model |
• The following parts is option.
Hanging Bolt |
- W 3/8 or M10 |
Nut |
- W 3/8 or M10 |
Spring Washer - M10 |
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Plate Washer |
- M10 |
CAUTION: Tighten the nut and bolt to prevent unit falling.
•Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole-core drill.
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Wall |
Indoor |
Outdoor |
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<![if ! IE]> <![endif]>5~7 mm |
10 Air Conditioner
The Indoor Unit Installation
2. Duct type
CASE 1
POSITION OF SUSPENSION BOLT
•Apply a joint-canvas between the unit and duct to absorb unnecessary vibration.
•Apply a filter Accessory at air return hole.
(Unit:mm)
Dimension |
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Capacity |
A |
B |
C |
D |
E |
F |
(G) |
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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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48 kBtu/h |
1292 |
1230 |
477 |
56 |
590 |
30 |
120 |
1006 |
294 |
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A |
<![if ! IE]> <![endif]>ENGLISH |
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<![if ! IE]> <![endif]>D |
(G) |
<![if ! IE]> <![endif]>F |
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Drainage hole |
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CASE 2 |
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• Install the unit leaning to a drainage hole |
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side as a figure for easy water drainage. |
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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POSITION OF CONSOLE BOLT |
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• A place where the unit will be leveled and |
M10 washer |
X 4 |
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M10 SP. washer X 4 |
(Local |
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that can support the weight of the unit. |
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supply) |
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• A place where the unit can withstand its |
M10 Nut |
X 4 |
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vibration. |
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• A place where service can be easily |
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performed. |
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Installation Manual |
11 |
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The Indoor Unit Installation
•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: Tighten the nut and bolt top revent unit falling.
Old building |
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New building |
1 |
Set anchor |
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Plate washer |
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Spring washer |
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Nut |
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5 Suspension |
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bolts |
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• Local supply |
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Set anchor |
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Plate washer |
- M10 |
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Spring washer |
- M10 |
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Nut |
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- W3/8 or M10 |
Suspension bolt |
- W3/8 or M10 |
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12 Air Conditioner
The Indoor Unit Installation
CAUTION
1.Install declination of the indoor unit is very important for the drain of the duct type air conditioner.
2.Minimum thickness of the insulation for the connecting pipe shall be 5 mm.
Front of view
•The unit must be horizontal or declined to the drain hose connected when finished installation.
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Ceiling |
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<![if ! IE]> <![endif]>1~3 mm |
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CORRECT |
Drainage hole |
INCORRECT |
Drainage hole |
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<![endif]>ENGLISH
CAUTION FOR GRADIENT OF UNIT AND DRAIN PIPING
Lay the drain hose with a downward inclination so water will drain out.
•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.
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Thermal insulator |
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(Local supply) |
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Drainage pipe |
Unit |
(Local supply) |
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Make sure to be closed. |
Drainage hole |
• Upward routing not allowed
CORRECT |
INCORRECT |
Applied U-Trap Dimension
•Install the P-Trap (or U-Trap) to prevent a water leakage caused by the blocking of intake air filter.
A70 mm
B2C
C2 x SP
SP = External Pressure
(mmAq)
Ex) External Pressure
= 10 mmAq
A70 mm
B40 mm
C20 mm
C
A
B
U-Trap
Installation Manual 13
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