mfl39754865 v2 - owner manual (manav) 28 jan 14 final

OWNER’S MANUAL

AIR CONDITIONER Please read this manual carefully before operatingyour set and retain it for future reference.

TYPE : WALL MOUNTED

P/No. MFL39754865_V2

MFL39754865

www.lg.com

LG Electronics India Pvt. Ltd.Registered Office : A Wing ( 3rd Floor )D-3 , District Center, Saket , New Delhi -110017

(Recommended 24°C is suitable for human body)

(Refer page no. 20 and 21 for details)

For inner cleaning, contact an Authorized Service Center or a dealer. Do not use harsh detergent thatcauses corrosion or damage on the unit. Harsh detergent that causes failure or product, fire or electronic shock

Disposal of your old appliance (as per e-waste Rules)1. When this crossed out wheeled bin symbol is depicted

on the product and its operator’s manual, it means the product is covered by the e-waste Management and Handling Rules , 2011 and are meant to be recycled, dismantled, refurbished or disposed off.

2. Dos

a. The product is required to be handed over only to the authorized recycler for disposal.

b. Keep the product in isolated area, after it becomes non-functional/un-repairable so as top revent its accidental breakage.

Don’t

a. The product should not be opened by the user himself/herself, but only by authorized service p e rsonnel.

b. The product is not meant for re-sale to any unauthorized agencies/scrap dealer/ kabariwalah.

c. The product is not meant for mixing into household waste stream.

d. Do not keep any replaced spare part(s) from the product in exposed area.

3. Any disposal through unauthorized agencies/person will attract action under Environment (Protection) Act 1986 .

4. Hazards of improper handling or accidental breakage

a. If batteries are disposed incorrectly, it can greatly harm the environment. The chemical by-products are hazardous.T he metals and chemicals

found in batteries can mix into soil which may be hazardous to humans, plants and animals. If thrown in fire, they can cause blast and release toxic gases which may be harmful for health.

b. The refrigerant (R-22) used can be combustible at low pressure. The potential health effects of over exposure isd izziness, headache and

heart irregularities

5. To locate a nearest collection centre or call for pick-up (limited area only) for disposal of this appliance, please contact Toll Free No.1800-180-9999 for details. All collection centre and pick up facilities are done by third parties with LG Electronics India Pvt. Ltd. merely as a facilitator.

For more detailed information , please visit : http://www.lge.com/in

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– Prior to operationComponents– Electrical Safety– Using the remote control–

Inserting BatteriesInstalling the remote control holderWireless Remote Control

BASIC FUNCTIONS12

Cooling your roomHeating your roomRemoving humidityAiring your roomAdjusting the fan speedAdjusting the air flow directionSetting the timer– Setting the current time– Turning on the air conditioner automatically at a set time– Turning off the air conditioner automatically at a set time– Cancelling the timer settingSetting sleep mode

ADVANCED FUNCTIONS15

Changing room temperature quicklyAir purification modeIndoor air purification– Auto Clean operationAuto operationQuiet Mode (optional)Energy Saver modeDimmerOperating the air conditioner without theremote controlRestarting the air conditioner automatically

MAINTENANCE18

– Cleaning the air filter– Cleaning the anti-allergy filter and triple filter– Cleaning the plasma filter

TROUBLESHOOTING21

– Self-diagnosis function– Before requesting service

• Contact the authorized service technician for repair ormaintenance of this unit.

• Please install your air-conditioner by companyauthorised service franchisee / authorised serviceand sales dealer.

• The air conditioner is not intended for use by youngchildren or invalids without supervision.

• Young children should be supervised to ensure thatthey do not play with the air conditioner.

• When the power cord is to be replaced, replacementwork shall be performed by authorized personnel only,using only genuine replacement parts.

We recommend usage of voltage stabilizer with

high / low voltage cut off in areas having voltage

fluctuations.

AC TONNAGE STABILIZER KVA(3-STEP STABILIZER)

1.0

1.5

2.0

3

4

5

PRECAUTION

Cleaning the Micro Protection filter.–

Prior to Operation

Preparing for Operation

1. Contact an installation specialist for installation.

2. Plug in the power plug properly.3. Use a dedicated circuit.4. Do not use an extension cord.5. Do not start/stop operation by plugging/

unplugging the power cord.6. If the cord/plug is damaged, replace it with

only an authorized replacement part.

Usage

1. Being exposed to direct airflow for a long time may be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for a long time.

2. Due to the possibility of oxygen deficiency, ventilate the room when using the appliance together with stoves or other heating devices.

3. Do not use this air conditioner for non-specified special purpose (e.g. preserving precision devices, food, pets, plants, or art objects). Such use may damage your p rope r t i es . on l y an au tho r i zed replacement part.

Cleaning and Maintenance

1. Do not touch the metal parts of the unit when removing the filter. Injury can occur.

2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leading to electric shock.

3. When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is triggered while cleaning inner parts of the unit.

Service

For repair and maintenance, contact your authorized service dealer.

Components

Symbols used in this Manual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that may cause harm to the

air conditioner.

This symbol indicates special notes.

Air Intake Vents

Air Outlet Vents

ConnectingWires

Piping

Drain HoseBase Plate

Indoor unit

Outdoor unit

This appliance should be installed in accordance with national wiring regulations. This guide acts as aguide to help to explain product features.

Front PanelAir Filter

Air Inlet

Signal Receptor

Notice

WARNING

Features

Electrical Safety

• This appliance must be properly grounded. To minimize the risk of electric shock, you must always plug into a grounded outlet.

• Do not cut or remove the grounding.

• Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the house wiring.

• If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and circuit checked by a qualified electrician.

WARNING

Using the remote control

Using the remote control

You can operate the air conditioner more conveniently with the remote control.

Wireless remote control

Used to circu-Air Circulation buttonlate the room air without cooling orheating.

Sets thesleep mode auto operation.

Ad-justs the room temperature when cool-ing and heating.

fan speed.

air flow direction.

-

-

Use to remove excess moisture.M’SOON

H’COOL button : Cools down the indoor temperature within a short period of time

the start / end time

display ON or OFF.

AM ON

OFF

A/CLEAN

Turn indoor unit

controller settings.remote

LIGHT

H’COOL

DisplayScreen

ControlPanel

2

H’COOL

Used tostart or stop Mosquito Away operationMosquito Away operation buttonDisplay

Screen

ControlPanel

M’SOONFAN

2

H’COOL

M’SOON

M

M

M

12

BASIC FUNCTIONSCooling your room(Cooling operation)1 Press to turn on the power.

2 Press repeatedly to select the cooling

operation.- is displayed on the display screen.

3 Press or to set the desired

- The temperature range is 18°C - 30°C

Heating your room(Heating operation)

1 Press to turn on the power.

2 Press repeatedly to select the heating

operation.

- is displayed on the display screen.

3 Press or to set the desired tempera-ture.


Removing humidity (Cooling Mode Only)(Monsoon operation)This mode removes excess moisture from environment with high humidity or in the rainyseason, in order to prevent mold from settingin. This mode adjusts the room temperatureand the fan speed automatically to maintainthe optimal level of humidity.


2 Press to select the monsoon operation.


NOTE!Cooling-only models do not support thisfunction.

M’SOON

NOTE!• In this mode you cannot adjust the room

temperature, as it is adjusted automati-cally. Also, the room temperature is notdisplayed on the display screen.

• In this mode indoor unit fan and outdoor unit will be OFF intermittently.• To Exit from Monsoon mode press

key or key or key

BASIC FUNCTIONS

temperature.

H’COOL

M

M

13

Adjusting the air flow direc-tion1 To adjust the direction of the flow verti-

cally, press change the air flow direc-

tion automatically.

- This function is apply for only turn On/Off.

2 To adjust the direction of the flow horizon-tally, press change the air flow direc-

tion automatically.

- This function is apply for only turn On/Off.

Setting the timerYou can use the timer function to save energyand to use the air conditioner more efficiently.

Setting the current time1 Press and hold it for longer than 3 sec-

onds.

- The AM/PM icon flickers at the bottom ofthe display screen.

NOTE!• Adjusting the air flow direction horizon-

tally may not be supported, dependingon the model.

• Adjusting the air deflector arbitrarily maycause product failure.

• If you restart the air conditioner, it startsto operate with the previously set direc-tion of air flow, so the air deflector maynot match the icon displayed on the re-mote control. When this occurs, press

or to adjust the direction of

the air flow again.

Airing your room(Air Circulation operation)This mode only circulates the indoor air

without changing the room temperature.

3 Press to adjust the fan speed.

Adjusting the fan speed1 Press repeatedly to adjust the fan

speed.

- Select if you want natural air. The fan speed adjusts automatically.

Natural wind (CHAOS Logic)For fresher feeling, press the INDOOR FANSPEED SELECTION BUTTON and set toNatural wind mode.In this mode, the wind blows like a naturalbreeze by automatically changing fan speed.

is displayed on the display screen.


2 Fan button : Press turn on the air

circulation operation.

-

FAN

14

2 Press or to select .

3 Press to finish.

Turning on the air conditioner auto-matically at a set time1 Press

- The icon below flickers at the bottom ofthe display screen.

2 Press or to select

3 Press to finish.

4 When setting the timer, current time and

times.

ON icon are displayed on the displayscreen indicating that the ON TIMER isset.

Turning off the air conditioner auto-matically at a set time1 Press

- The icon below flickers at the bottom ofthe display screen.

2 Press or to select

3 Press to finish.

4 When setting the timer, current time and

the times.

OFF icon are displayed on the displayscreen indicating that the OFF TIMER isset.

Canceling the timer setting1 Press or to select the timer setting

to cancel.

2 Press

- To cancel all timer settings, press

Setting sleep modeUse the sleep mode to turn off the air condi-tioner automatically when you go to sleep.


2 Press

3 Press or to select the hour

(up to 7 hours).

4 Press to finish.

- is displayed on the display screen insleep mode.

desired time.

desired time.

desired time.

This mode does not have auto restartfeature.

(The timer lamp on the air conditioner andthe display will go off.)

The sleep mode will operate indoor fan atsuper low speed in cooling mode and at lowspeed in heating mode for pleasant sleep

In cooling mode or Monsoon mode

The setting temperature will rise automaticallytwo times by 1°C over next consecutive 30minutes (Maximum 2°C) for a comfortablesleep.This will be the final setting temperature aslong as sleep mode is functioning.After completion of set time unit will switchOFF automatically.

15

ADVANCED FUNCTIONSThe air conditioner offers some additional ad-vanced functions.

Changing room temperaturequicklyH’COOL(Himalaya)ModeThis mode allows you to cool indoor air quickly

Press

-In H’COOL(Himalaya)mode,30 minutes strong focused air blows out for faster cooling.

Indoor air purificationAuto Clean operationIn the cooling and monsoon operations,moisture is generated inside the indoor unit.Use the auto cleaning function to removesuch moisture.

2 Press - is displayed on the display screen.


- If you turn off the power, the fan oper-ates for 30 minutes and cleans the insideof the indoor unit.

NOTE!Some buttons cannot be used while theauto cleaning function is in operation.

During Auto Clean function, “Co” willbe displayed on the unit.

Power saving lamp blink dependingon the model.

Energy saving cooling modeThis mode minimizes power consumption dur-ing cooling and increases the set temperatureto the optimal level for a more comfortable en-vironment.

The temperature automatically sets at22°C if ambient temperature is below 22°C.

The temperature maintains if ambient temper-ature is above 22°C

1 Press to turn the power on.

2 Press repeatedly to select the cooling

operation.

3 Press


!This function may not be supported, depending on the model. In Energy SavingCooling Mode, temperature on the displayof the remote controller and air condi-tioner can be different.

NOTE


ADVANCED FUNCTIONS

H’COOL


During & after H'COOL mode swing function will be ON by default.

To OFF swing function Press respectiveswing key.

16 ADVANCED FUNCTIONS

Auto operation (Optional)(Artificial inelligence)


2 Press repeatedly to select auto operation.

3 Press or to select the desired oper-

ation code if the temperature is higher or

lower than the desired temperature.

Code Description

2 Cool

1 Cool slightly

0 Maintain room temperature

-1 Heat slightly

-2 Heat

NOTE!• In this mode, you cannot adjust the fan

speed, but you can set the air deflectorto rotate automatically.

• This function may not be supported, de-pending on the model.

In this mode, the fan speed and thetemperature adjust automatically,based on the room temperature.

Dimmer (Optional)

1. 2.

Make sure that remote & Air conditioner are ON.

In Dimmer Mode Unit Display will be turned OFFcompletely but system will be in running state.

Dimmer Mode will be cancelled if any key except is pressed

(Power Keywill turn OFF the Unit.

This function may not be supported by Auto Restart feature (depending onselected models.)

Press to activate/deactivate dimmer

function.

Auto Changeover (Optional)


2 Press repeatedly to select auto operation.

This operation is basically heating or cooling function of the air conditioner. But during this operation the controller change the operation mode automatically

to keep the temperature within ±2°C with respect to the setting temperature.

Cooling-only models Heat pump models

NOTE!• This function may not be supported, de-

pending on the model.

LIGHT

3 Press or to set the desired


temperature.

4 Press repeatedly to select the fan speed.


Mosquito Away* Operation (Optional)Mosquito Away is a device to radiate frequency which mosquitoes don’t like.

1 Press - To start Mosquito Away function.

2 Press again to finish

NOTE!• You can use this function by pressing without

turning the air conditioner ON. (In this case, Fan speed can not be changed).

At this time horizontal vane will be at default position & the fan speed will be low.

• This function can be co used with other function like timer, monsoon.

• This function may not be supported depending on the model.

• The Mosquito Away performance can be different depending on the customer’s environment.

* For detail refer Disclaimer.

17ADVANCED FUNCTIONS

Open the frontpanel upward

ON/OFFbutton

(Forced Operation)

Heat�pump�ModelCooling�ModelRoom�Temp.�³�24°C 21°C�³�Room�Temp.�<�24°C Room�Temp.�<�21°C

Operating mode Cooling Cooling Healthy Dehumidification Heating

Indoor FAN Speed High High High High

Setting Temperature 22°C 22°C 23°C 24°C

If you want to stop the unit, re-press the power button.

8

Open the frontpanel upward

ON/OFFbutton

restart (Optional)

MAINTENANCE18

Micro Protection filter Micro Protection filter.1

Use soap solution to clean the heat exchanger coils and the panel vents (consult with technician).

MAINTENANCE 19

Plz do not press themesh with finger as

shown above

Caution :

MAINTENANCE20

Cleaning the Micro Protection Filter(Optional)

cleaning the Micro Protection FilterMicro Protection Filter.

We suggest changing the Micro ProtectionFilter every 6 months.

- Do not wash the Micro Protection Filter with water because the filter can be damaged.

,

For more filters, Please contact theLG service center.(Refer to the warranty card.)

The location of the filters may differ,depending on the model.

The feature can be changed according to type of model.

(Side)

(Rear)

Air intakevents

Air outletvents

Piping

Drain Hose

(Side)

(Rear)

Air intakevents

Air outletvents

Piping

Drain Hose

(Side)

(Rear)

Air intakevents

Air outletvents

PipingDrain Hose

The heat exchanger coils and panel vents of the outdoor unit shouldbe checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned.

Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.

NOTICE

Outdoor Unit

TROUBLESHOOTING 21

call

call call

call

TROUBLESHOOTING22

Operate the air conditioner on Air circulationmode (Refer to page 23) for 2 to 3 hours.

• This will dry out the internal mechanisms.

When air conditioner is not going to be used for a long time. When the air conditioner is to be used again.

Turn off the circuit breaker, and disconnectthe plug.

Remove the batteries from the remotecontrol.

Turn off the circuit breaker when the air conditioneris not going to be used for a long time.

Dirt may collect and may cause a fire.

Clean the air filter and install it in the indoorunit.

(Refer to page 26 for cleaning filters.)

Check that the air inlet and outlet of theindoor/outdoor unit are not blocked.

CAUTION

When the air conditioner is not going to be used for a long time.

Tak-tak noise from indoor unit

Contraction or expa-nsion of plastic com-ponents due to chan-ge in temperature

It is a natural phenomenon, and can only be reduced but not overcome completely

The auto operation jet operation is selected

In some operation modes, such as thejet operation modes, you cannot adjust the fan speed, Select an operation modein which you can adjust the fan speed.

Operation rangesFor Heat & Cool model, heating operation range follows the below table.

Heating Operation range

Outdoor temperature

0~24°C

* When the outdoor temperature drops below 0°C, heating capacity may drop slightly depending on the operation condition.

DISCLAIMER 23

IMPORTANT: Long term effect not tested and mosquitoes may become resistant. Mosquito species used in the test below may differ from the mosquito species of your region. This product is one of the ways to manage mosquitoes and not intended to replace other protective devices against mosquitoes.

DISCLAIMER

Test Details: A: Tested by International Institute of Biotechnology and Toxicology (IIBAT), India, According to LG internal

testing method.

Test conducted, three times at temperature of 27±2°C and humidity of 60±10%

Test used two chambers size 3.5m x 2.6m x 2.2m, the chamber with the LG air conditioner assumed to be inside (“inside chamber”) and the chamber without the LG conditioner assumed to be outside (“outside chamber”).

Cages (25cm3) are placed inside each chamber, connected using netted sleeves to enable the movement of the mosquitoes from one cage to another.

One person is placed inside the inside chamber to attract mosquitoes

For each test, 50 lab cultured 3-5 days old mosquitoes were placed in the cage in outside chamber; number of mosquitoes coming into the cage in inside chamber was counted every 10 minutes for 90 minutes under 2 settings:

Control setting (low fan ON + mosquito repelling ultrasonic OFF)Treatment setting (low fan ON + mosquito repelling ultrasonic ON)

Test Result:Found to repel on average 81.1% of Aedes aegypti mosquitoes. Repel rate shows percentage of mosquitoes prevented from entering the inside chamber after 90 minutes of Treatment setting compared to Control setting. Represented average of 81.1% derived from 76.9%, 84.6%, 81.8%.

B: Tested by Intertek, Korea, According to LG internal testing method.

Test conducted, three times at temperature of 27±2°C and humidity of 60±10%

Test used two chambers size 33m3 and 19m3 connected by a channel made of white sheet, small chamber assumed to be outside (“outside chamber”) and the large chamber to be inside with the LG air conditioner (“inside chamber”)

One person is placed inside the inside chamber to attract mosquitoes

For each test, 50 lab cultured 3-5 days old mosquitoes were released into outside chamber; number of mosquitoes coming into the inside chamber was counted every 10 minutes for 90 minutes under 2 settings:

Control setting (low fan ON + mosquito repelling ultrasonic OFF)

Treatment setting (low fan ON + mosquito repelling ultrasonic ON)

Found to repel on average 72.5% of Aedes aegypti mosquitoes. Repel rate shows percentage of mosquitoes prevented from entering the inside chamber after 90 minutes of Treatment setting compared to Control setting. Represented average of 72.5% derived from 73.1%, 64.3%, 80.0%.

Test Result:

Results may vary in other settings, including but not limited to temperature, humidity, location, space, mosquito species, number of mosquitoes, number of persons, and operation time.

20INSTALLATION

- Do not use sea water for this purpose.

TEST RUNNING

Bolt

Tubing connection

Check that all tubing and wiring have beenproperly connected.Check that the gas and liquid side service valvesare fully open.

1.

2.

Ensure the difference between the intaketemperature and the discharge is more than 8°C(Cooling) or reversely (Heating).

3.

APrepare remote controlRemove the battery coverby pulling it according to thearrow direction.

Insert new batteries makingsure that the (+) and (–) ofbattery are installed correctly.

Reattach the cover bypushing it back into position.

NOTE:Use 2 AAA(1.5volt) batteries. Do not userechargeable batteries.Remove the batteries from the remote control ifthe system is not going to be used for a longtime.

BSettlement of outdoor unit

Anchor the outdoor unit with a bolt and nut ø10mm)tightly and horizontally on a concrete or rigid mount.

When installing on the wall, roof or rooftop, anchorthe mounting base securely with a nail or wireassuming the influence of wind and earthquake.

In the case when the vibration of the unit isconveyed to the hose, secure the unit with ananti-vibration rubber.

CEvaluation of the performanceOperate unit for 15~20 minutes, then check thesystem refrigerant charge:

Measure the pressure of the gas side servicevalve.

Measure the temperature of the intake anddischarge of air.

1.

2.

For reference; the gas side pressure of optimumcondition is as below.(Cooling)

4.

NOTE:If the actual pressure are higher than shown, thesystem is most likely over-charged, and chargeshould be removed. If the actual pressurearelower than shown, the system is most likelyundercharged, and charge should be added

The air conditioner is now ready for use.

PUMP DOWN

This is performed when the unit is to berelocated or the refrigerant circuit is serviced.Pump Down means collecting all refrigerant in theoutdoor unit without loss in refrigerant gas.

CAUTION:Be sure to perform Pump Down procedure with theunit cooling mode.

Pump Down ProcedureConnect a low-pressure gauge mainifold hose to thecharge port on the gas side service valve.

Open the gas side service valve halfway and purgethe air from the manifold hose using the refrigerantgas.

Close the liquid side service valve(all the way in).

Turn on the unit's operating switch and start thecooling operation.

When the low-pressure gauge reading becomes 12

to 0.5kg/cmG(14.2 to 7.1 P.S.I.G.), fully close thegas side valve stem and then quickly turn off theunit. At that time, Pump Down has been completedand all refrigerant gas will have been collected inthe outdoor unit.

1.

2.

3.

4.

5.

Dischargetemperature

Discharge air

Intake temperature

1.

2.

3.

INSTALLATION19

2kgf/cm

2kgf/cm

Gas side

Liquid side

Cap

Hexagonal wrench

2-way valve(Open)

3-way valve(Close)

CEvacuation

Soap water methodRemove the caps from the 2-way and 3-wayvalves.

Remove the service-port cap from the 3-wayvalves.

To open the 2-way valve turn the valve stemcounterclockwise approximately 90°, wait forabout 2~3 sec, and close it.

Apply a soap water or a liquid neutral detergenton the indoor unit connection or outdoor unitconnections by a soft brush to check forleakage of the connecting points of the piping.

If bubbles come out, the pipes have leakage.

(1)

(2)

(3)

(4)

(5)

Connect the charge hose end described in thepreceding steps to the vacuum pump toevacuate the tubing and indoor unit.Confirm the "Lo" knob of the manifold valve isopen. Then, run the vacuum pump.The operation time for evacuation varies withtubing length and capacity of the pump. Thefollowing table shows the time required forevacuation.

Required time for evacuation when 30 gal/hvacuum pump is used

If tubing length is lessthan 10m (33 ft)

10 min. or more15 min. or more

If tubing length is longerthan 10m (33 ft)

When the desired vacuum is reached, close the"Lo" knob of the manifold valve and stop thevacuum pump.

DFinishing the jobWith a service valve wrench, turn the valve stemof liquid side valve counter-clockwise to fullyopen the valve.

Turn the valve stem of gas side valvecounter-clockwise to fully open the valve.

Loosen the charge hose connected to the gas sideservice port slightly to release the pressure, thenremove the hose.

Replace the flare nut and its bonnet on the gas sideservice port and fasten the flare nut securely with anadjustable wrench. This process is very important toprevent leakage from the system.

Replace the valve caps at both gas and liquid sideservice valves and fasten them tight.

This completes air purging with a vacuum pump.The air conditioner is now ready to test run.

Indoor unit

Outdoor unit

LoHi

Manifold valve

Vacuum pump

Pressuregauge

OpenClose

AIR PURGING

INSTALLATION 18

LoHi

Indoor unit

Outdoor unit

Manifold valve

Charge hose

Nitrogen gascylinder(in verticalstanding position)

Pressuregauge

Air purging

Pressure in the system rises.

Air and moisture remaining in the refrigerantsystem have undesirable effects as indicatedbelow.

Operating current rises.

Cooling(or heating) efficiency drops.Moisture in the refrigerant circuit mayfreeze and block capillary tubing.

Water may lead to corrosion of parts in therefrigeration system.

Therefore, the indoor unit and tubing betweenthe indoor and outdoor unit must be leak testedand evacuated to remove any noncondensablesand moisture from the system.

Air purging with vacuumpump

ACheck that each tube(both liquid and gasside tubes) between the indoor andoutdoor units have been properlyconnected and all wiring for the test runhas been completed. Remove the servicevalve caps from both the gas and the liquidside on the outdoor unit. Note that both theliquid and the gas side service valves onthe outdoor unit are kept closed at thisstage.

BLeak testConnect the manifold valve(with pressuregauges) and dry nitrogen gas cylinder tothis service port with charge hoses.

Do a leak test of all joints of the tubing(bothindoor and outdoor) and both gas and liquid sideservice valves.

Bubbles indicate a leak. Be sure to wipe off thesoap with a clean cloth.

After the system is found to be free of leaks,relieve the nitrogen pressure by loosening thecharge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal,disconnect the hose from the cylinder.

AIR PURGING

Preparation

INSTALLATION

To avoid nitrogen entering the refrigerant system in aliquid state, thetop of the cylinder must be higher than itsbottom when you pressurize thesystem. Usually, thecylinder is used in a vertical standing position.

CAUTION

17

Be sure to use a manifold valve for airpurging. If it is not available, use a stop valvefor this purpose. The 3-way valve must always be kept close.

CAUTION

Pressurize the system to maximum 250 P.S.I.G.(R-22 model) or 400 P.S.I.G. (R-410A model) with dry nitrogen gas and close the cylinder valve when the gauge reading reached 250 P.S.I.G. (R-22 model) or 400 P.S.I.G. (R-410A model). Next, stepis leak test with liquid soap.

There is a risk of fire and explosion. - Inert gas (nitrogen) should be used when you check plumbing leaks, cleaning or repairs of pipes etc. If you are using combustible gases including oxygen, product may have the risk of fires and explosions.

CAUTION

Tip of drain hose dipped in water

WaterleakageDitch

Less than 50mm gap

Checking the drainage

Do not make drain piping.

Form the piping

Do not raise

Waterleakage

Accumulateddrain water

Air

WavingWaterleakage

Taping

Drainhose

Pipings

Connectingcable

AForm the piping by wrapping theconnecting portion of the indoor unit withinsulation material and secure it with twokinds of vinyl tapes.

If you want to connect an additional drainhose, the end of the drain outlet should be

routed above the ground. Secure the drainhose appropriately.

BIn cases where the outdoor unit isinstalled below the indoor unit performthe following.

Tape the piping, drain hose andconnecting cable from down to up.

Secure the tapped piping along the exteriorwall using saddle or equivalent.

CIn cases where the Outdoor unit isinstalled above the Indoor unit performthe following.

Tape the piping, and connecting cable fromdown to up.

Secure the taped piping along the exteriorwall. Form a trap to prevent water enteringthe room.

Fix the piping onto the wall by saddle orequivalent.

Seal small openingsaround pipings with agum type sealant.

Trap is required to prevent waterfrom entering into electrical parts.

Seal a small openingaround the pipingswith gum type sealant.

Trap

Trap

Downward slope

ATo remove the front panel from the indoorunit, remove the front panel from theindoor unit cabinet.

Set the air direction louvers up-and-down tothe position(horizontally) by hand.

Remove the securing screws that retain thefront panel. Pull the lower left and rightsides of the grille toward you and lift it off.(18K, 24K models: 3EA)

BTo check the drainage.Pour a glass of water on the evaporator.

Ensure the water flows through the drainhose of the indoor unit without any leakageand goes out the drain exit.

CDrain piping

The drain hose should point downward foreasy drain flow.

Screw

Pull the right andthe left side.

CONNECTING THE CABLEBETWEEN INDOOR & OUTDOOR UNIT

INSTALLATION 16

CONNECTING THE CABLEBETWEEN INDOOR & OUTDOOR UNIT

Connect the cable to theoutdoor unit

ARemove the control cover from the unit byloosening the screw.Connect the wires to the terminals on thecontrol board individually.

BSecure the cable onto the control board withthe cord clamp.

CRefix the control cover to the originalposition with the screw.

DUse a recognized circuit breaker 20A (12K,18K),25A (24K, 26K) between the power sourceand the unit. A disconnecting device toadequately disconnect all supply lines mustbe fitted.

After the confirmation of the above conditions, prepare the wiring as follows:

Never fail to have an individual power circuit specifically for the air conditioner. As forthe method of wiring, be guided by the circuit diagram posted on the inside of controlcover.The screw which fasten the wiring in the casing of electrical fittings are liable to comeloose from vibrations to which the unit is subjected during the course oftransportation. Check them and make sure that they are all tightly fastened. (If theyare loose, it could cause burn-out of the wires.)Specification of power source.Confirm that electrical capability is sufficient.See to that the starting voltage is maintained at more than 90 percent of the ratedvoltage marked on the name plate.Confirm that the cable thickness is as specified in the power source specification.(Particularly note the relation between cable length and thickness. (Refer to page 11))Always install an earth leakage circuit breaker in a wet or moist area.The following would be caused by voltage drop.

The means for disconnection from a power supply shall be incorporated in the fixedwiring and have an air gap contact separation of at least 3mm in each active(phase)conductors.

Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of thenormal function of the overload.

1)

2)

3)4)5)

6)

7)8)

9)

Outdoor Unit

Terminal block

Over 5mm

Cover controlConnecting cable

Connecting cable

Cover Control

CAUTION

INSTALLATION15

Connecting Cable 1 each (Cooling only)Connecting cable 2 each (Heat pump only)

CONNECTING THE CABLEBETWEEN INDOOR & OUTDOOR UNITConnect the cable fromIndoor to outdoor unit.

Connect the cable to the indoor unit byconnecting the wires to the terminals on thecontrol board individually according to theoutdoor unit connection.(Ensure that the color of the wires of the

outdoor unit and the terminal No. are the same

as those of the indoor unit.)

If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below.

Main power source

Circuit BreakerUse a circuitbreaker or timedelay fuse.

AirConditioner

CAUTION

The power cord connected to the indoor unit shouldbe compiled with the following specifications

(Type H05VV-F approved by HAR or SAA).

The power connecting cable connected to theindoor and outdoor unit should be compiled with thefollowing specifications

(Type H07RN-F approved by HAR or SAA).

The connecting signal cable connected to theindoor and outdoor unit should be compiled with the following specifications

(Type H07RN-F approved by HAR or SAA).

Capacity(Btu/h)

NORMAL CROSS-SECTIONAL AREA

18K

24K26K

21.0mm

21.5mm

22.5mm

Capacity(Btu/h)

NORMAL CROSS-SECTIONAL AREA

9K, 12K

18K, 24K26K

21.0mm

22.5mm

NORMALCROSS-SECTIONAL

2AREA 0.75mm

9K, 12K

CAUTION

INSTALLATION 14

(Optional)Cooling model (9K,12K)Cooling model (9K,12K,18K,24K)

Heat pump model(12K,18K,24K)

FLARING WORK AND CONNECTION OF PIPINGBundle the piping and drain hose together bywrapping them with cloth tape over the rangewithin which they fit into the rear piping housingsection.

Drain hose

Pipe

Vinyl tape(narrow)

HReroute the pipings and the drain hose acrossthe back of the chassis.

Wrap withvinyl tape(wide)

ISet the pipings and the drain hose to the back ofthe chassis with the tubing holder.

Hook the edge of tubing holder to tap on chassisand push the bottom of tubing holder to beengaged at the bottom of chassis.

JIndoor unit installationRemove the spacer.Ensure that the hooks are properly seated on theinstallation plate by moving it left and right.

Press the lower left and right sides of the unit againstthe installation plate until the hooks engage into theirslots(clicking sound).

Connection of thepipes-Outdoor

When tightening the flare nut with torquewrench, ensure the direction for tighteningfollows the arrow on the wrench.

AAlign the center of the pipings andsufficiently tighten the flare nut by hand.

BFinally, tighten the flare nut with torquewrench until the wrench clicks.

Tubing holderHook

Push

Drain hose

Connectingcable

Outdoor unit Gas side piping(Bigger diameter)

Liquid sidepiping(Smallerdiameter)

Torque wrench

2

1

Piping forpassage throughpiping hole

INSTALLATION13

N.m17.6~24.533.3~41.253.9~64.761.7~80.497~118.6

kgf.cm180~250340~420550~660630~820

990~1210

Vinyl tape(narrow)

Connecting cable

Pipe

Connectionpipe

Vinyl tape(wide)

Wrap with vinyl tape

Indoor unit pipe

Plastic bandsInsulation material

Vinyl tape(narrow)Adhesive

Drain pipe

Indoor unit drain hose

Installation plate

Spacer

Indoor unit

8cm

CInsert the connecting cable into the indoor unit.

Don't connect the cable to the indoor unit.Make a small loop with the cable for easyconnection later.

DTape the drain hose and the connecting cable.

Connecting cable

EIndoor unit installation

Hang the indoor unit from the hooks at the top ofthe installation plate.

Insert the spacer etc. between the indoor unit andthe installation plate and separate the bottom ofthe indoor unit from the wall.

FConnecting the pipings to the indoor unit andthe drain hose to drain pipe.

Align the center of the pipings and sufficientlytighten the flare nut by hand.

When extending the drain hose at the indoor unit.install the drain pipe.

GWrap the insulation material around theconnecting portion.

Overlap the connection pipe heat insulation and theindoor unit pipe heat insulation material. Bind themtogether with vinyl tape so that there is no gap.

Wrap the area which accommodates the rearpiping housing section with vinyl tape.

Spanner (fixed)

Flare nut

Connection pipeTorque wrench

Indoor unit tubing

Indoor unit tubingFlare nutPipings

Tighten the flare nut with a wrench.

FLARING WORK AND CONNECTION OF PIPING

INSTALLATION 12

N.m17.6~24.533.3~41.253.9~64.761.7~80.497~118.6

kgf.cm180~250340~420550~660630~820

990~1210

Vinyl tape(narrow)

Connecting cable

Pipe

Connectionpipe

Vinyl tape(wide)


Indoor unit pipe

Drain pipe

Connecting cable


Drain hose

Pipe

Vinyl tape(wide)

Plastic bandsInsulation material

Tighten the flare nut with a wrench.Wrap the area which accommodates the rearpiping housing section with vinyl tape.

Bundle the piping and drain hose together bywrapping them with vinyl tape over the rangewithin which they fit into the rear pipinghousing section.

Vinyl tape(narrow)Adhesive

Drain pipe

Indoor unit drain hose

BInsert the piping, drain hose and the connectingcable into the piping hole.

FWrap the insulation material around theconnecting portion.

ARoute the indoor tubing and the drain hose tothe required piping hole position.

For right rear piping

When extending the drain hose at the indoor unit,install the drain pipe.

Overlap the connection pipe insulation material andthe indoor unit pipe insulation material. Bind themtogether with vinyl tape so that thee is no gap.

Spanner (fixed)

Flare nut

Connection pipeTorque wrench

Indoor unit tubing


INSTALLATION11

N.m17.6~24.533.3~41.253.9~64.761.7~80.497~118.6

kgf.cm180~250340~420550~660630~820

990~1210

FLARING WORK AND CONNECTION OF PIPINGConnection of piping-Indoor

Preparing the indoor unit's piping and drainhose for installation through the wall.

Remove the plastic tubing retainer (seeillustration below) and pull the tubing anddrain hose away from chassis.

Replace the plastic tubing holder in theoriginal position.

CTape the tubing, drain hose and the connectingcable. Be sure that the drain hose is located atthe lowest side of the bundle. Locating at theupper side can cause drain pan to overflowinside the unit.

NOTE: If the drain hose is routed inside the room,

insulate the hose with an insulation material* so thatdripping from "sweating"(condensation) will not damagefurniture or floors.

*Foamed polyethylene or equivalent is recommended.

Loop

Connectingcable

Drain hose

Gas sidepiping

Liquid sidepiping Tubing holder

To remove the holder,press the bottom ofchassis near the holderupward and pull the tabout of its hole.

DIndoor unit installation

Hook the indoor unit onto the upper portion ofthe installation plate.(Engage the two hooks ofthe rear top of the indoor unit with the upperedge of the installation plate.) Ensure that thehooks are properly seated on the installationplate by moving it left and right

ARoute the indoor tubing and the drain hosein the direction of rear left.

Drain hose

BInsert the connecting cable into the indoorunit from the outdoor unit through thepiping hole.

Do not connect the cable to the indoor unit.Make a small loop with the cable for easyconnection later.

For left rear piping

CAUTIONWhen install, make surethat the remaining partsmust be removed clearlyso as not to damage thepiping and drain hose,especially power cordand connecting cable.

Press the lower left and right sides of theunit against the installation plate until thehooks engage into their slots (clicking-sound).

EConnecting the pipings to the indoor unit anddrain hose to drain pipe.

Align the center of the pipings and sufficientlytighten the flare nut by hand.

Indoor unit tubingFlare nutPipings

Drain hose

Connectingcable

INSTALLATION 10

Outside diametermm

ø6.35

ø9.52

ø12.7

ø15.88

ø19.05

inch

1/4"

3/8"

1/2"

5/8"

3/4"

mmmm

1.1~1.30.7

1.5~1.70.8

1.6~1.80.8

1.6~1.8

1.9~2.1

1.0

1.0

AThickness


AUse the piping kit accessory or the pipespurchased locally.

Measure the distance between the indoorand the outdoor unit.

Cut the pipes a little longer than measureddistance.

Cut the cable 1.5m longer than the pipelength.

DCarry out flaring work using flaring tool as shownbelow.

Firmly hold copper pipe in a die in thedimension shown in the table above.

BCompletely remove all burrs from the cutcross section of pipe/tube.

Put the end of the copper tube/pipe in adownward direction as you remove burrs inorder to avoid dropping burrs into the tubing.

ECompare the flared work with figure below.If flare is noted to be defective, cut off the flaredsection and do flaring work again.

CRemove flare nuts attached to indoor andoutdoor unit, then put them on pipe/tubehaving completed burr removal.(not possible to put them on after flaringwork)

Copperpipe90°Slanted Uneven Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

Bar

Copper pipe

Clamp handleRed arrow mark

Cone

Yoke

Handle

Bar "A"

Inclined

Inside is shiny without scratches.

Smooth all round

Even lengthall round

Surfacedamaged

CrackedUneventhickness

= Improper flaring =

Main cause for gas leakage is due to defectin flaring work. Carry out correct flaring workin the following procedure.

Flaring workFlaring work

Burrs removalCheck

Cut the pipes and the cable

Putting nut on

INSTALLATION9

Mount the installation plate horizontally by

aligning the centerline using a level.

AMount the installation plate on the wall withfour type A screws. If mounting the unit on aconcrete wall, use anchor bolts.

The wall you select should be strong and solidenough to prevent vibration.

BMeasure the wall and mark the centerline. Itis also important to use caution concerningthe location of the installation plate-routing ofthe wiring to power outlets is through thewalls typically. Drilling the hole through thewall for piping connections must be donesafely.

Drill the piping hole with a ø70mm hole core

drill. Drill the piping hole at either the right or

the left with the hole slightly slanted to the

outdoor side.

Indoor

WALL

Outdoor

5-7

mm

(0.2

~0.3

")

CAUTIONMake sure that the drilled hole in the wall is properly sealed (using a proper sealant, for example cement, plaster of paris etc.) after passing the installation pipe, drainage pipe and the inter connecting cable.

INSTALLATION OF INDOOR & OUTDOOR UNITHow to fix installation plateDrill a hole in the wall

Outdoor Unit

Drain Pipe

Drain Pan

Drain pan along with drain pipe (asshown below) can be used to drainthe water accumulated in the outdoorduring the Heat Mode.

Left rear pipingRight rear piping

Hole centerø65

"D""C"

Usage of Drain Pan(Heat Pump)

INSTALLATION 8

Type “A” Screw

INSTALLATION OF INDOOR & OUTDOOR UNITRead completely, then follow step by step.

Capacity is based on standard length and maximumallowance length is on the basis of reliability.Oil trap should be installed every 5~7 meters.

In case more than 5m

A

Indoor unit

Oil trap

Outdoor unit

A

Indoor unit

Outdoor unit

ADo not have any heat or steam near theunit.Select a place where there are noobstacles in front of the unit.Make sure that condensation drainagecan be conveniently routed away.Do not install near a doorway.Ensure that the space around the left andright of the unit is more than 10cm. Theunit should be installed as high on thewall as possible, allowing a minimum of20cm from ceiling.Use a stud finder to locate studs toprevent unnecessary damage to the wall.

More than 10cmMore than 20cm

More than 2.3mMore than 10cm

Install the indoor unit on the wall where the heightfrom the floors more than 2.3 meters.

BIf 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 space around the backand sides is more than 30cm. The front ofthe unit should have more than 70cm of

space.Do not place animals and plants in thepath of the warm air.

Take the air conditioner weight intoaccount and select a place where noiseand vibration are minimum.Select a place so that the warm air andnoise from the air conditioner do not

disturb neighbors.

Select the best locationIndoor Unit

CAUTION

Outdoor Unit

If the outdoor unit is installed on a roof structure, be

sure to level the unit. Ensure the roof structure and

anchoring method are adequate for the unit location.

Consult local codes regarding rooftop mounting.

Rooftop Installation

Piping length and elevation

CAUTION

INSTALLATION7

Capacity(Btu/h)

18K (60Hz)24K Cooling

24K, 26KCooling & Heat Pump5/8"3/8"3 to 5

Pipe Size

GASLIQUID

StandardLength

(m)

1/2"1/4"

1/4"

3 to 5

3 to 5

20

20

20

20

5/8"1/4"3 to 52030

2030

Max.length

(m) A

AdditionalRefrigerant

(g/m)

9K, 12K,18K (50Hz)

9K3/8"

B

1

2

3

4

5

6

7

8

9

10

11

12

Installation Tools

S.No.Required Tools

Level Gauge

Screw Driver

Electric Drill

Hole Core Drill (Dia-70mm)

Flaring Tool Set

Specified torque wrenches 1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m(Different depending on model no.)

Spanner (Half Union)

Hexagonal Wrench

Gas-Leak Detector

Vacuum Pump

Gauge Manifold

Thermometer

INSTALLATION TOOLS 6

Type ‘A’ Screw

INSTALLATION PARTSInstallation parts provided with the unit

Type ‘A’ ScrewQuantityShapeOthers

Type ‘A’ ScrewQuantityShapeOthers

5

Installation Plate

Type ‘B’ Screw

Holder Remote Control

1

2

1

Owner’s ManualInstallation Manual

••

Installation parts you must purchase

Owner’sManualInstallationManual

•

•

Sleeve

Bushing Sleave

Putty (Gum type sealant)

Vinyl tape (Wide)

Gas side piping

Liquid side piping

Additional drain pipe

Vinyl tape

Saddle

INSTALLATION PARTS5

Installation�parts�youmust�purchaseInstallation plateSleeveBushing-SleevePutty(Gum Type Sealant)

Bend the pipe as closelyon the wall as possible,but be careful that itdoesn't break.

Vinyl tape (Wide)Apply after carrying out adrainahe test.

To carry out the drainagetest, remove the air filtersand pour water into the heatexchanger.

Gas side piping

Liquid side piping

Additional drain pipe

Vinyl tape

Connecting cable: Cooling & Heat pump: 2EA

Cooling only: 1EA

Saddle

Air filter

(Left and rightare identical)

/ TABLE OF CONTENTS

5 Installation Parts provided with the Unit5 Installation Parts you must purchase6 Required Tools

INSTALLATION PARTS 5

79

10101113

14

16

1719

20

Connecting the cable between indoorunit and outdoor unitChecking the drainage and forming thepipingAir purgingTest runningInstallation guide at the seaside

Installation of Indoor & Outdoor UnitFlaring Work and Connection of Piping

INSTALLATION 7

Connection of piping (Indoor)For right rear pipingFor left rear pipingConnection of piping (Outdoor)

(Recommended 24°C is suitable for human body)

(Refer page no. 21 and 22 owner's manual)

INSTALLATION MANUAL

AIR CONDITIONER

TYPE : WALL MOUNTED

Please read this installation manual completely before installing the product.When the power cord is damaged, replacement work shall beperformed by authorized personnel only.Installation work must be performed in accordance with the national wiringstandards by authorized personnel only.Please retain this installation manual forfuture reference after reading it thoroughly.

P/No. MFL39754865_V2

MFL39754865

www.lg.com

LG Electronics India Pvt. Ltd.Registered Office : A Wing ( 3rd Floor )D-3 , District Center, Saket , New Delhi -110017

mfl39754865 v2 - owner manual (manav) 28 jan 14 final

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