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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.
Ceiling Concealed Duct
Original instruction
MFL68821903 |
www.lg.com |
Rev.01_050819 |
Copyright © 2016 - 2019 LG Electronics Inc. All Rights Reserved. |
TABLE OF CONTENTS
TABLE OF CONTENTS
3 Features
4 Safety Precautions
7Installation
7Selection of the best location
8 Ceiling dimension and hanging bolt location
9Indoor Unit Installation
9Wiring Connection
10Checking the Drainage
11Indoor Unit Drain Piping
13DIP Switch Setting
14Group Control Setting
19Model Designation
19Airborne Noise Emission
19Limiting concentration
20How to Set E.S.P?
2
Indoor Unit
Features
Feature
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Air inlet vents
Air outlet vents
Wired Remote Controller
(Optional)
Installation Tool
Name |
Drain hose |
Clamp metal |
Washer for |
Clamp |
Insulation for |
(Other) |
hanging bracket |
(Tie Wrap) |
fitting |
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Quantity |
1 EA |
2 EA |
8 EA |
4 EA |
1 SET |
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• Owner's manual |
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• Installation manual |
Shape |
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for gas pipe |
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for liquid pipe |
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Installation Manual 3
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
νIncorrect 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 to properties only.
νMeanings 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 ground the product.
-There is risk of fire or electric shock.
•Install the panel and the cover of control box securely.
-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.
•Use the correctly rated breaker or fuse.
-There is risk of fire or electric shock.
•Do not modify or extend the power cable.
-There is risk of fire or electric shock.
•Do not install, remove, or re-install the unit by yourself (customer).
-There is risk of fire, electric shock, explosion, or injury.
•Be cautious when unpacking and installing the product.
-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, causing property damage, product failure, and personal 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.
•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.
4
Indoor Unit
Safety Precautions
Operation
•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.
•Take care to ensure that power cable could not be pulled out or damaged during operation.
-There is risk of fire or electric shock.
•Do not place anything on the power cable.
-There is risk of fire or electric shock.
•Do not plug or unplug the power supply plug during operation.
-There is risk of fire or electric shock.
•Do not touch(operate) the product with wet hands.
-There is risk of fire or electrical shock.
•Do not place a heater or other appliances near the power cable.
-There is risk of fire and electric shock.
•Do not allow water to run into electric parts.
-It may cause There is risk of fire, failure of the product, or electric shock.
•Do not store or use flammable gas or combustibles near the product.
-There is risk of fire or failure of product.
•Do not use the product in a tightly closed space for a long time.
-Oxygen deficiency could occur.
•When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.
-Do not use the telephone or turn switches on or off. There is risk of explosion or fire.
•If strange sounds, smell or smoke comes from product. Turn the breaker off or disconnect the power supply cable.
-There is risk of electric shock or fire.
•Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.
-There is risk of property damage, failure of product, or electric shock.
•Do not open the inlet grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)
-There is risk of physical injury, electric shock, or product failure.
•When the product is soaked (flooded or submerged), contact an Authorized Service Center.
-There is risk of fire or electric shock.
•Be cautious that water could not enter the product.
-There is risk of fire, electric shock, or product damage.
•Ventilate the product from time to time when operating it together with a stove, etc.
-There is risk of fire or electric shock.
•Turn the main power off when cleaning or maintaining the product.
-There is risk of electric shock.
•When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker.
-There is risk of product damage or failure, or unintended operation.
•Take care to ensure that nobody could step on or fall onto the outdoor unit.
-This could result in personal injury and product damage.
! CAUTION
Installation
•Always check for gas (refrigerant) leakage after installation or repair of product.
-Low refrigerant levels may cause failure of product.
•Install the drain hose to ensure that water is drained away properly.
-A bad connection may cause water leakage.
•Keep level even when installing the product.
-To avoid vibration or water leakage.
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Installation Manual 5
Safety Precautions
•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.
•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.
Operation
•Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)
-This could harm to your health.
•Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.
-There is risk of damage or loss of property.
•Do not block the inlet or outlet of air flow.
-It may cause product failure.
•Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
-There is risk of fire, electric shock, or damage to the plastic parts of the product.
•Do not touch the metal parts of the product when removing the air filter. They are very sharp!
-There is risk of personal injury.
•Do not step on or put anything on the product. (outdoor units)
-There is risk of personal injury and failure of product.
•Always insert the filter securely. Clean the filter every two weeks or more often if necessary.
-A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.
•Do not insert hands or other objects through the air inlet or outlet while the product is operated.
-There are sharp and moving parts that could cause personal injury.
•Do not drink the water drained from the product.
-It is not sanitary and could cause serious health issues.
•Use a firm stool or ladder when cleaning or maintaining the product.
-Be careful and avoid personal injury.
•Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.
-There is risk of fire or explosion.
•Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
-They may burn or explode.
•If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked.
-The chemicals in batteries could cause burns or other health hazards.
•If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked.
-The chemicals in batteries could cause burns or other health hazards.
•If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazrd.
•This equipment shall be provided with a supply conductor complying with the national regulation.
6
Indoor Unit
Installation
Installation
Read completely, then follow step by step.
Selection of the best 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.
•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) |
Inspection hole(1) |
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600 x 600
Air inlet vents
Control box
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600 |
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600 |
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Air outlet vents1 000 |
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Inspection hole(2) |
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600 x 600 |
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Front |
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Front view (Unit: mm)
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More than 20
! CAUTION
In case that the unit is installed near the sea, the installation parts may be corroded by salt, The installation parts (and the unit) should be taken appropriate anti-corrosion measures.
[Inspection Hole Standard]
Number of |
Distance between |
Remarks |
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inspection hole |
false ceiling & actual ceiling |
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1 |
More than 100 cm |
Sufficient space in the ceiling for servicing. |
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2 |
20 cm to 100 cm |
Insufficient space. Difficult for servicing |
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Hole size should be more |
Less than 20 cm |
Minimum height for motor replacement. |
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than the size of IDU. |
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Installation Manual 7
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