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INSTALLATION MANUAL
AIR
CONDITIONER
•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.
Single
P/NO : MFL67448522 |
www.lg.com |
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2 TIPS FOR SAVING ENERGY
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:
•Do not cool excessively indoors. This may be harmful to your health and may consume more electricity.
•Block sunlight with blinds or curtains while you are operating the air conditioner.
•Keep doors or windows closed tightly while you are operating the air conditioner.
•Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
•Speed up the fan to cool or warm indoor air quickly, in a short period of time.
•Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours.
•Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them labeled on the side of each unit.
Dealer’s name :
Date of purchase :
IMPORTANT SAFETY INSTRUCTIONS 3
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product
! WARNING
It can result in serious injury or death when the directions are ignored
! CAUTION
It can result in minor injury or product damage when the directions are ignored
! WARNING
•Installation or repairs made by unqualified persons can result in hazards to you and others.
•Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.
•The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.
•Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
Installation
•Always perform grounding. Otherwise, it may cause electrical shock.
•Don’t use a power cord, a plug or a loose socket which is damaged. Otherwise, it may cause a fire or electrical shock.
•For installation of the product, always contact the service center or a professional installation agency. Otherwise, it may cause a fire, electrical shock, explosion or injury.
•Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit. If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.
•Always install an air leakage breaker and a dedicated switching board. No installation may cause a fire and electrical shock.
•Do not keep or use flammable gases or combustibles near the air conditioner. Otherwise, it may cause a fire or the failure of product.
•Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time. It may cause injury or an accident.
•Do not disassemble or repair the product randomly. It will cause a fire or electrical shock.
•Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion.
There is the risk of death, injury, fire or explosion.
•Do not install the product at a place that there is concern of falling down. Otherwise, it may result in personal injury.
•Use caution when unpacking and installing. Sharp edges may cause injury.
•Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. Otherwise, it may cause fire, electric shock, explosion or death.
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4 IMPORTANT SAFETY INSTRUCTIONS
Operation
•Do not share the outlet with other appliances. It will cause an electric shock or a fire due to heat generation.
•Do not use the damaged power cord. Otherwise, it may cause a fire or electrical shock.
•Do not modify or extend the power cord randomly. Otherwise, it may cause a fire or electrical shock.
•Take care so that the power cord may not be pulled during operation. Otherwise, it may cause a fire or electrical shock.
•Unplug the unit if strange sounds, smell, or smoke comes from it. Otherwise, it may cause electrical shock or a fire.
•Keep the flames away. Otherwise, it may cause a fire.
•Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands. Otherwise, it may cause a fire or electrical shock.
•Do not use the power cord near the heating tools. Otherwise, it may cause a fire and electrical shock.
•Do not open the suction inlet of the indoor/outdoor unit during operation. Otherwise, it may electrical shock and failure.
•Do not allow water to run into electrical parts. Otherwise, it may cause the failure of machine or electrical shock.
•Hold the plug by the head when taking it out. It may cause electric shock and damage.
•Never touch the metal parts of the unit when removing the filter. They are sharp and may cause injury.
•Do not step on the indoor/outdoor unit and do not put anything on it. It may cause an injury through dropping of the unit or falling down.
•Do not place a heavy object on the power cord. Otherwise, it may cause a fire or electrical shock.
•When the product is submerged into water, always contact the service center. Otherwise, it may cause a fire or electrical shock.
•Take care so that children may not step on the outdoor unit. Otherwise, children may be seriously injured due to falling down.
!CAUTION
Installation
•Install the drain hose to ensure that drain can be securely done. Otherwise, it may cause water leakage.
•Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors. Otherwise, it may cause dispute with the neighbors.
•Always inspect gas leakage after the installation and repair of product. Otherwise, it may cause the failure of product.
•Keep level parallel in installing the product. Otherwise, it may cause vibration or water leakage.
Operation
•Avoid excessive cooling and perform ventilation sometimes. Otherwise, it may do harm to your health.
•Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent. The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.
•Do not use an appliance for special purposes such as preserving animals vegetables, precision machine, or art articles. Otherwise, it may damage your properties.
•Do not place obstacles around the flow inlet or outlet. Otherwise, it may cause the failure of appliance or an accident.
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TABLE OF CONTENTS |
5 |
TABLE OF CONTENTS |
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2 |
TIPS FOR SAVING ENER- 17 |
LEAKAGE TEST AND |
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GY |
EVACUATION |
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17 |
Preparation |
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3 |
17 |
Leakage test |
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IMPORTANT SAFETY |
Evacuation |
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18 |
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INSTRUCTIONS |
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19 |
TEST RUNNING |
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6INSTALLATION OF OUTDOOR UNIT
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21 |
FUNCTION |
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8 |
WIRING CONNECTION |
21 |
Forced cooling operation |
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8 |
Electrical wiring |
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9 |
Connecting cables between indoor unit 22 |
SELF-DIAGNOSIS FUNC- |
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and outdoor unit |
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TION |
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11 |
Connecting the cable to outdoor unit |
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22 |
Error indicator (outdoor) |
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12 |
CONNECTING PIPES |
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INSTALLATION GUIDE AT |
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12 |
Preparation of piping |
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THE SEASIDE |
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13Connecting the pipes to the outdoor unit
14Forming the piping
15Plumbing materials and storage methods
16Nitrogen substitution method
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6 INSTALLATION OF OUTDOOR UNIT
INSTALLATION OF OUTDOOR UNIT
Installation Places
-If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.
-Ensure that the spaces indicated by arrows around front, back and side of the unit.
-Do not place animals and plants in the path of the warm air.
-Take the air conditioner weight into account and select a place where noise and vibration are minimum.
-Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
More than 300 mm
Sunroof
Unit : mm
Fence obstaclesor
More than 
300 mm
More than 600 mm
More than 700 mm
INSTALLATION OF OUTDOOR UNIT |
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Piping length and the elevation
Ceiling Suspended Air conditioner
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Pipe Size |
Length A (m) |
Elevation B (m) |
Additional |
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MODEL |
CAPACITY |
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Refrigerant |
Gas |
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Liquid |
Standard |
Max. |
Standard |
Max. |
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(g/m) |
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AVUQ36GM1A0 |
36 kBtu/h |
Ø 15,88 |
(5/8) |
Ø 9,52 (3/8) |
7,5 |
50 |
0 |
30 |
20 |
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AVUQ48GM2A0 |
46 kBtu/h |
Ø 15,88 |
(5/8) |
Ø 9,52 (3/8) |
7,5 |
50 |
0 |
30 |
20 |
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AVUQ60GM2A0 |
58 kBtu/h |
Ø 19,05 |
(3/4) |
Ø 9,52 (3/8) |
7,5 |
50 |
0 |
30 |
20 |
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If installed tube is shorter than 15 m, additional charging is not necessary. Additional Refrigerant = (A -15) x Additional refrigerant (g)
Indoor unit
Outdoor unit
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A
B |
Outdoor unit |
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A |
Indoor unit |
B |
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!CAUTION
•Capacity is based on standard length and maximum allowance length is on the basis of reliability.
•Improper refrigerant charge may result in abnormal cycle.
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8 WIRING CONNECTION
WIRING CONNECTION
Electrical wiring
Perform the electrical wiring work according to the electrical wiring connection.
-All wiring must comply with local requirements.
-Select a power source that is capable of supplying the current required by the air conditioner.
-Use a recognized ELCB(Electric Leakage Circuit Breaker) between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted.
-Model of circuit breaker recommended by authorized personnel only
ELCB
Main
power source
Switch box
Outdoor
Indoor
Model |
Phase(Ø) |
ELCB |
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AVUQ36GM1A0 |
1 |
30 A |
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AVUQ48GM2A0 |
1 |
40 A |
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AVUQ60GM2A0 |
1 |
40 A |
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