P/NO : MFL69171214
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
QUICK MANUAL
AIR
CONDITIONER
www.lg.com
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.
Original instruction
[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
This manual is the simplified version of original manual.
You can obtain the original manual for more information form www.lg.com.
VRF FOR INDOOR
INSTALLAION
ENGLISH
PORTUGUÊS
MALTI
ITALIANO
MAGYAR
SLOVENČINA
РУССКИЙ ЯЗЫК
УКРАÏНСЬКА
ESPAÑOL
БЪЛГАРСKN
SLOVENŠČINA
FRANÇAIS
SRPSKI
LATVIEŠU VALODA
DEUTSCH
HRVATSKI
LIETUVIŲ KALBA
ΕΛΛΗΝΙΚΆ
SVENSKA
GAEILGE
ČEŠTINA
NORSK
МАКЕДОНСКИ
NEDERLANDS
SUOMI
SHQIP
POLSKI
DANSK
ÍSLENSKA
LIMBA ROMÂNĂ
EESTI KEEL
BOSANSKI
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ENGLISH
Airborne Noise Emission
The sound pressure of this product is below the 70dB.
The noise level can vary depending on the site.
The figures quoted are emission level and are not necessarily safe
working levels.
Whilst there is a correlation between the emission and exposure
levels, this cannot be used reliably to determine whether or not further
precautions are required.
Factor that influence the actual level of exposure of the workforce
include the characteristics of the work room and the other sources of
noise, i.e. the number of equipment and other adjacent processes and
the length of time for which an operator exposed to the noise. Also,
the permissible exposure level can vary from country to country.
This information, however, will enable the user of the equipment to
make a better evaluation of the hazard and risk.
Limiting concentration
Limiting concentration is the limit of Freon gas concentration where
immediate measures can be taken without hurting human body when
refrigerant leaks in the air. The limiting concentration shall be
described in the unit of kg/m3(Freon gas weight per unit air volume)
for facilitating calculation.
Method when insatalling the ducting
- Ducting is to be field supplied
- For prevent water from flowing into the Heat exchanger module,
Make sure the ductiong has slopes down
- You Protect the ducting against reverse airflow from wind.
- If the suction ducting or discharge ducting is connected with the
inside air, it might be impossible to reach the desired room
temperature.
- Connect suction ducting and discharge ducting with the outside air.
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:
Total amount of replenishedrefrigerant
in refrigerant facility (kg)
Capacity of smallest room
whereindoor unit is installed (m3)
Refrigerant concentration(kg/m3) =
Limiting concentration: 0.44kg/m3(R410A)
Model Designation
• Product Name : Air conditioner
• Model Name :
Product information
• Additional information : Serial number is refer to the bar code on the
product.
Model
Name
ARU N 050 L M S 0
No.1234567
No. Signification
1 MULTI V System Outside Unit using R410A
2
Combination of Inverter Type and Cooling Only or Heat Pump
N: Inverter and H/P, V: Inverter and C/O
3
Total Cooling Capacity in Horse Power(HP) unit
EX) 5HP → '050', 8HP → '080'
4
Electrical Ratings
L : 380-415 V 3N~ 50 Hz / 380 V 3N~ 60 Hz
G : 220-240 V~ 50 Hz / 220 V ~ 60Hz
5
Air discharge type
S : Side Discharge
T : Top Discharge
N : Top Discharge Standard H/P(380V)
L : Top Discharge special H/P
M : Module type
6
Model Type
S : Set
C : Compressor Module
E : Heat Exchanger Module
7
Serial number
• Do not cool excessively indoors. This may be harmful for 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 on a label on the side of each unit.
Dealer’s name :
Date of purchase :
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ENGLISH
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
• Installation or repairs made by unqualified persons can result in hazards to you and others.
• 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
• Have all electric work done by a licensed electrician according to "Electric Facility Engineering
Standard" and "Interior Wire Regulations" and the instructions given in this manual and always
use a special circuit.
- If the power source capacity is inadequate or electric work is performed improperly, electric
shock or fire may result.
• Ask the dealer or an authorized technician to install the air conditioner.
- Improper installation by the user may result in water leakage, electric shock, or fire.
• Always ground the product.
- There is risk of fire or electric shock.
• Always intstall a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock.
•
For re-installation of the installed product, always contact a dealer or an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install, remove, or re-install the unit by yourself (customer).
- There is risk of fire, electric shock, explosion, or injury.
• Do not store or use flammable gas or combustibles near the air conditioner.
- There is risk of fire or failure of product.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Prepare for strong wind or earthquake and install the unit at the specified place.
- Improper installation may cause the unit to topple and result in injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
•
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.
• When installing and moving the air conditioner to another site, do not charge it with a different
refrigerant from the refrigerant specified on the unit.
- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may
malfunction and the unit may be damaged.
• Do not reconstruct to change the settings of the protection devices.
- If the pressure switch, thermal switch, or other protection device is shorted and operated
forcibly, or parts other than those specified by LGE are used, fire or explosion may result.
• Ventilate before operating air conditioner when gas leaked out.
- It may cause explosion, fire, and burn.
!
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.
!
!
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ENGLISH
• Securely install the cover of control box and the panel.
- If the cover and panel are not installed securely, dust or water may enter the outdoor unit and
fire or electric shock may result.
• If the air conditioner is installed in a small room, measures must be taken to prevent the
refrigerant concentration from exceeding the safety limit when the refrigerant leaks.
- Consult the dealer regarding the appropriate measures to prevent the safety limit from being
exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, harzards due
to lack of oxygen in the room could result.
• Means for disconnection must be incorporated in the fixed wiring in accordance with the
wiring rules
• This equipment shall be provided with a supply conductor complying with the national
regulation
Operation
• Do not damage or use an unspecified power cord.
- There is risk of fire, electric shock, explosion, or injury.
• Use a dedicated outlet for this appliance.
- There is risk of fire or electrical shock.
• Be cautious that water could not enter the product.
- There is risk of fire, electric shock, or product damage.
• Do not touch the power switch with wet hands.
- There is risk of fire, electric shock, explosion, or injury.
• When the product is soaked (flooded or submerged), contact an Authorized Service Center.
- There is risk of fire or electric shock.
• Be cautious not to touch the sharp edges when installing.
- It may cause injury.
• Take care to ensure that nobody could step on or fall onto the outdoor unit.
- This could result in personal injury and product damage.
• 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.
CAUTION
Installation
• Always check for gas (refrigerant) leakage after installation or repair of product.
- Low refrigerant levels may cause failure of product.
• 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.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the unit where combustible gas may leak.
- If the gas leaks and accumulates around the unit, an explosion may result.
• Use power cables of sufficient current carrying capacity and rating.
- Cables that are too small may leak, generate heat, and cause a fire.
• 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.
• Keep the unit away from children. The heat exchanger is very sharp.
- It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of
capacity.
• When installting the unit in a hospital, communication station, or similar place, provide sufficient
protection against noise.
-
The inverter equipment, private power generator, high-frequency medical equipment, or radio
communication equipment may cause the air conditioner to operate erroneously, or fail to operate.
On the other hand, the air conditioner may affect such equipment by creating noise that disturbs
medical treatment or image broadcasting.
• Do not install the product where it is 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.
!
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ENGLISH
Operation
• Do not use the air conditioner in special environments.
-
Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its
parts.
• Do not block the inlet or outlet.
- It may cause failure of appliance or accident.
• Make the connections securely so that the outside force of the cable may not be applied to the terminals.
- Inadequate connection and fastening may generate heat and cause a fire.
• 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, or
personal injury.
•
Install and insulate the drain hose to ensure that water is drained away properly based on the installation
manual.
- A bad connection may cause water leakage.
• Be very careful about product transportation.
- Only one person should not carry the product if it weighs more than 20 kg.
-
Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is
dangerous.
- Do not touch the heat exchanger fins. Doing so may cut your fingers.
- When transporting the outdoor unit, suspending it at the specified positions on the unit base. Also
support the outdoor unit at four points so that it cannot slip sideways.
• Safely dispose of the packing materials.
-
Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.
-
Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with
a plastic bag which was not torn apart, they face the risk of suffocation.
• Turn on the power at least 6 hours before starting operation.
- Starting operation immediately after turning on the main power switch can result in severe damage to
internal parts. Keep the power switch turned on during the operational season.
• Do not touch any of the refrigerant piping during and after operation.
- It can cause a burn or frostbite.
• Do not operate the air conditioner with the panels or guards removed.
- Rotating, hot, or high-voltage parts can cause injuries.
• Do not directly turn off the main power switch after stopping operation.
- Wait at least 5 minutes before turning off the main power switch. Otherwise it may result in water
leakage or other problems.
•
Auto-addressing should be done in condition of connecting the power of all indoor and outdoour units. Autoaddressing should also be done in case of changing the indoor unit PCB.
• Use a firm stool or ladder when cleaning or maintaining the air conditioner.
- Be careful and avoid personal injury.
• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in.
- There are sharp and moving parts that could cause personal injury.
• This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
• 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 hazard.
• Appliance shall be disconnected from its power source during service and when replacing
parts.
• This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
• Children should be supervised to ensure that they do not play with the appliance.
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ENGLISH
INSTALLATION SPACE
It must be installed indoors.
Ambient design temprature of compressor module and
Heat exchange module is 5~35°C (26°C WB)
- There should not be any heat source or steam near the unit.
- There should not be any obstacles to 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 have the maintenance space.
- For more information, refer to installation manual.
LIFTING METHOD
- When carrying the suspended, unit pass the ropes under the unit and
use the two suspension points each at the front and rear.
- Always lift the unit with ropes attached at four points so that impact
is not applied to the unit.
- Attach the ropes to the unit at an angle of 40° or less.
CAUTION
• Do not have only one person carry product if it is more than 20 kg.
• PP bands are used to pack some products. Do not use them as a
mean for transportation because they are dangerous.
• Do not touch heat exchanger fins with your bare hands.
Otherwise you may get a cut in your hands.
• Tear plastic packaging bag and scrap it so that children cannot
play with it. Otherwise plastic packaging bag may suffocate
children to death.
• When carrying in Outdoor Unit, be sure to support it at four
points. Carrying in and lifting with 3-point support may make
Outdoor Unit unstable, resulting in a fall.
• Use 2 belts of at least 8 m long.
• Place extra cloth or boards in the locations where the casing
comes in contact with the sling to prevent damage.
• Hoist the unit making sure it is being lifted at its center of gravity.
!
INSTALLATION PROCESS
CAUTION
• The above list indicates the order in which the individual work
operations are normally carried out but this order may be varied
where local conditions warrants such change.
• The thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8MPa.
• Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state.(If the refrigerant
is charged in its gaseous state, its composition changes and the
system will not work properly.)
!
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Determination of division work
Preparation of contract drawings
Sleeve and insert work
Installation of indoor unit
Refrigerant piping work
Drain pipe work
Duct work
Heat insulation work
Electrical work
(connection circuits and drive circuits)
Airtight test
Vacuum drying
Additional charge of refrigerant
Fit facing panels
Automatic addressing of indoor unit
Test run adjustment
Transfer to customer with explanation
Indicate clearly who will be responsible for switch setting.
Make connection clearly between outdoor, indoor,
remote controller and option.
Take account of gradient
of drain piping
Check model name to
make sure the fitting
is made correctly
Special attention to dryness,
cleanness and tightness
Adjust to downward gradient
Make sure airflow is sufficient
Make sure no gaps are left where
the insulating materials are joined
Multiple core cable must not be used.
(suitable cable should be selected)
(Including Connecting communicate wiring to
between Cycle module and Condenser module)
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm
must be no drop in pressure.
The vacuum pump used must have a capacity of reaching at least
5 torr, more than 1 hour
Recharge correctly as calculated in this manual. and record the
amount of added refrigerant
Make sure there are no gaps left between the facing materials
used on the ceiling
Refer to automatic addressing flowchart
Preheat the crank case with the electrical heater for more than 6 hours.
Run each indoor unit in turn to make sure the pipe work
has been fitted correctly
Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order
Foundation work for Compressor Module
& Heat exchanger Module installation
The foundation must be level even
Installation of Compressor module &
Heat exchanger module
Avoid short circuits and ensure
sufficient space is allowed for service
2
) there
7
ENGLISH
- Follow ordinance of your governmental organization for technical
standard related to electrical equipment, wiring regulations and
guidance of each electric power company.
-
Install the Outdoor Unit communication cable away from the power
source wiring so that it is not affected by electric noise from the power
source. (Do not run it through the same conduit.)
- Be sure to provide designated grounding work to Outdoor Unit.
CAUTION
Be sure to correct the outdoor unit to earth. Do not connect
ground wire to any gas pipe, liquid pipe, lightening rod or
telephone earth line. If earth is incomplete, it may cause an
electric shock.
!
WARNING
Be sure to have authorized electrical engineers do the electric
work using special circuits in accordance with regulations and
installation manual.
If power supply circuit has a lack of capacity or electric work
deficiency, it may cause an electric shock or fire.
!
ELECTRICAL WIRING
- Give some allowance to wiring for electrical part box of Indoor and
Outdoor Units, because the box is sometimes removed at the time of
service work.
- Never connect the main power source to terminal block of
communication cable. If connected, electrical parts will be burnt out.
- Use 2-core shield cable for communication cable.( mark in the
figure below) If communication cable of different systems are wired
with the same multiplecore cable, the resultant poor transmitting and
receiving will cause erroneous operations. ( mark in the figure
below)
- Only the communication cable specified should be connected to the
terminal block for Outdoor Unit communication.
- Supply line of appliances shall not be lighter than polychloroprene
sheathed. (code designation 60245 IEC 57)
2-Core Shield Cable
Multi-Core Cable
Remote
control
Remote
control
Remote
control
Remote
control
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Compressor Module Heat Exchanger
Module
Compressor Module Heat Exchanger
Module
Remote
control
Remote
control
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Indoor
Unit
Indoor
Unit
Compressor Module Heat Exchanger
Module
Compressor Module Heat Exchanger
Module
CAUTION
• Use the 2-core shield cables for communication cables. Never
use them together with power cables.
• The conductive shielding layer of cable should be grounded to
the metal part of both units.
• Never use multi-core cable
• As this unit is equipped with an inverter, to install a phase
leading capacitor not only will deteriorate power factor
improvement effect, but also may cause capacitor abnormal
heating. Therefore, never install a phase leading capacitor.
• Make sure that the power unbalance ratio is not greater than
2%.
If it is greater the units lifespan will be reduced.
!
Electric Characteristics
- Recommended circuit breaker is ELCB
- MFA is used to select the circuit breaker and ground fault circuit
interrupter
- Refer to the PDB about detail electric characteristics
ELCB : Earth Leakage Circuit Breaker
MFA : Maximum Fuse Amperes(A)
PDB : Product Data Book
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ENGLISH
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