Mitsubishi Electric MSZ-LN25VGW Split Type Air Conditioners Manuel utilisateur

SPLIT-TYPE AIR CONDITIONERS

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OPERATING INSTRUCTIONS For user

• To use this unit correctly and safely, be sure to read these operating in-

structions before use.

ÇALIŞTIRMA TALİMATLARI Kullanıcı için

• Bu üniteyi doğru ve güvenli bir biçimde kullanmak için, kullanmadan

önce bu işletim talimatlarını okuduğunuzdan emin olun.

BRUKSANVISNING För användaren

• Läs bruksanvisningen innan enheten tas i bruk så att den används sä-

kert och på rätt sätt.

BETJENINGSVEJLEDNING Til kunden

• Læs denne betjeningsvejledningen før brug, så enheden bruges korrekt

og sikkert.

INSTRUÇÕES DE OPERAÇÃO Para o utilizador

• Para utilizar esta unidade correctamente e com segurança, certi quese

de que lê estas instruções de operação antes da utilização.

ΟΔΗΓΙΕΣ ΛΕΙΤΟΥΡΓΙΑΣ Για το χρήστη

• Για να χρησιμοποιήσετε αυτή τη μονάδα σωστά και με ασφάλεια, βεβαι-

ωθείτε ότι έχετε διαβάσει αυτό το εγχειρίδιο οδηγιών πριν από τη χρή-

ση.

LIBRETTO D’ISTRUZIONI Per gli utenti

• Per utilizzare correttamente ed in tutta sicurezza questo apparecchio,

leggere il presente libretto d’istruzioni prima dell’uso.

MANUAL DE INSTRUCCIONES Para los clientes

• Para utilizar esta unidad de forma correcta y segura, lea previamente

estas instrucciones de funcionamiento.

BEDIENINGSINSTRUCTIES Voor de klant

• Om dit apparaat correct en veilig te kunnen gebruiken moet u deze be-

dieningsinstructies voor gebruik eerst doorlezen.

NOTICE D’UTILISATION A l’attention des clients

• Pour avoir la certitude d’utiliser cet appareil correctement et en toute

sécurité, veuillez lire cette notice d’instructions avant de mettre le clima-

tiseur sous tension.

BEDIENUNGSANLEITUNG Für den Anwender

• Für einen sicheren und ordnungsgemäßen Gebrauch des Geräts unbe-

dingt diese Bedienungsanleitung vor der Inbetriebnahme durchlesen.

English is original.

Übersetzung des

Originals

Traduction du texte

d’origine

Vertaling van het

origineel

Traducción del

original

Traduzione

dell’originale

Μετάφραση του

αρχικού

Tradução do

original

Oversættelse af

den originale tekst

Översättning från

originalet

Orijinalin çevirisi

Български

РЪКОВОДСТВО ЗА ЕКСПЛОАТАЦИЯ За потребителя

• За правилната и безопасна употреба на уреда, прочетете насто-

ящото ръководство за експлоатация преди употреба.

Версията на английски

език е оригинал.

Polski

INSTRUKCJA OBSŁUGI

Informacja dla użytkownika

• Aby prawidłowo i bezpiecznie korzystać z urządzenia, należy wcześniej

przeczytać niniejszą instrukcję obsługi.

Językiem oryginału

jest język angielski.

MSZ-LN25VGW MSZ-LN35VGW MSZ-LN50VGW MSZ-LN60VGW

MSZ-LN25VGV MSZ-LN35VGV MSZ-LN50VGV MSZ-LN60VGV

MSZ-LN25VGR MSZ-LN35VGR MSZ-LN50VGR MSZ-LN60VGR

MSZ-LN25VGB MSZ-LN35VGB MSZ-LN50VGB MSZ-LN60VGB

INDOOR UNIT

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● OPERATING INSTRUCTIONS ●

WARNING

Do not connect the power cord to an intermediate point, use an

extension cord, or connect multiple devices to a single AC outlet.

• This may cause overheating, ﬁ re, or electric shock.

Make sure the power plug is free of dirt and insert it securely into

the outlet.

• A dirty plug may cause ﬁ re or electric shock.

Do not bundle, pull, damage, or modify the power cord, and do not

apply heat or place heavy objects on it.

• This may cause ﬁ re or electric shock.

• Since rotating parts and parts which could cause an electric shock are used in this product,

be sure to read these “Safety Precautions” before use.

• Since the cautionary items shown here are important for safety, be sure to observe them.

• After reading this manual, keep it together with the installation manual in a handy place

for easy reference.

Marks and their meanings

WARNING : Incorrect handling could cause serious hazard, such as death, serious

injury, etc. with a high probability.

CAUTION : Incorrect handling could cause serious hazard depending on the

conditions.

Do not turn the breaker OFF/ON or disconnect/connect the power

plug during operation.

• This may create sparks, which can cause ﬁ re.

• After the indoor unit is switched OFF with the remote controller, make

sure to turn the breaker OFF or disconnect the power plug.

Do not expose your body directly to cool air for a prolonged length

of time.

• This could be detrimental to your health.

Meanings of symbols used in this manual

: Be sure not to do.

: Be sure to follow the instruction.

: Never insert your ﬁ nger or stick, etc.

: Never step onto the indoor/outdoor unit and do not put anything on them.

: Danger of electric shock. Be careful.

: Be sure to disconnect the power supply plug from the power outlet.

: Be sure to shut off the power.

: Risk of ﬁ re.

: Never touch with wet hand.

: Never splash water on the unit.

SAFETY PRECAUTIONS

CONTENTS

Meanings of symbols displayed on indoor unit and/or outdoor unit

WARNING

(Risk of ﬁ re)

This unit uses a ﬂ ammable refrigerant.

If refrigerant leaks and comes in contact with ﬁ re or heating part, it will create harmful gas and there is risk of ﬁ re.

Read the OPERATING INSTRUCTIONS carefully before operation.

Service personnel are required to carefully read the OPERATING INSTRUCTIONS and INSTALLATION MANUAL before operation.

Further information is available in the OPERATING INSTRUCTIONS, INSTALLATION MANUAL, and the like.

■SAFETY PRECAUTIONS 1

■DISPOSAL 3

■NAME OF EACH PART 4

■PREPARATION BEFORE OPERATION 5

■I-SEE OPERATION 6

■SELECTING OPERATION MODES 7

■FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT 8

■AIRFLOW CONTROL MODE 9

■ABSENCE DETECTION 9

■I-SAVE OPERATION 10

■ECONO COOL OPERATION 10

■NIGHT MODE OPERATION 11

■AIR PURIFYING OPERATION 11

■POWERFUL OPERATION 12

■TIMER OPERATION (ON/OFF TIMER) 12

■WEEKLY TIMER OPERATION 13

■OPERATION LOCK 14

■EMERGENCY OPERATION 14

■AUTO RESTART FUNCTION 14

■CLEANING 15

■Wi-Fi INTERFACE SETTING UP 16

■WHEN YOU THINK THAT TROUBLE HAS OCCURRED 17

■WHEN THE AIR CONDITIONER IS NOT GOING TO BE USED FOR A LONG TIME 19

■INSTALLATION PLACE AND ELECTRICAL WORK 19

■SPECIFICATIONS 20

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The unit should not be installed, relocated, disassembled, altered,

or repaired by the user.

• An improperly handled air conditioner may cause ﬁ re, electric shock,

injury, or water leakage, etc. Consult your dealer.

• If the power supply cord is damaged, it must be replaced by the manu-

facturer or its service agent in order to avoid a hazard.

When installing, relocating, or servicing the unit, make sure that

no substance other than the speciﬁ ed refrigerant (R32) enters the

refrigerant circuit.

• Any presence of foreign substance such as air can cause abnormal

pressure rise and may result in explosion or injury.

•

The use of any refrigerant other than that speciﬁ ed for the system will cause

mechanical failure, system malfunction, or unit breakdown. In the worst case,

this could lead to a serious impediment to securing product safety.

This appliance is not intended for use by persons (including children)

with reduced physical, sensory or mental capabilities, or lack of ex-

perience 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.

Do not insert your ﬁ nger, a stick, or other objects into the air inlet

or outlet.

• This may cause injury, since the fan inside rotates at high speeds during

operation.

In case of an abnormal condition (such as a burning smell), stop the

air conditioner and disconnect the power plug or turn the breaker OFF.

• A continued operation in the abnormal state may cause a malfunction,

ﬁ re, or electric shock. In this case, consult your dealer.

When the air conditioner does not cool or heat, there is a possibility of refrig-

erant leakage. If any refrigerant leakage is found, stop operations and venti-

late the room well and consult your dealer immediately. If a repair involves

recharging the unit with refrigerant, ask the service technician for details.

• The refrigerant used in the air conditioner is not harmful. Normally, it

does not leak. However, if refrigerant leaks and comes in contact with

ﬁ re or heating part of such a fan heater, kerosene heater, or cooking

stove, it will create harmful gas and there is risk of ﬁ re.

The user should never attempt to wash the inside of the indoor unit.

Should the inside of the unit require cleaning, contact your dealer.

• Unsuitable detergent may cause damage to plastic material inside

the unit, which may result in water leakage. Should detergent come in

contact with electrical parts or the motor, it will result in a malfunction,

smoke, or ﬁ re.

• The appliance shall be stored in a room without continuously operating

ignition sources (for example: open ﬂ ames, an operating gas appliance

or an operating electric heater).

• Be aware that refrigerants may not contain an odour.

• Do not use means to accelerate the defrosting process or to clean the

appliance, other than those recommended by the manufacturer.

• Do not pierce or burn.

The indoor unit must be installed in rooms which exceed the ﬂ oor

space speciﬁ ed. Please consult your dealer.

• LN25/35(HZ): 1.7 m²

• LN50: 2.5 m²

• LN50HZ/60: 3.9 m²

This appliance is intended to be used by expert or trained users in

shops, in light industry and on farms, or for commercial use by lay

persons.

Do not touch the air purifying device from the top of the indoor unit

during operation.

CAUTION

Do not touch the air inlet or the aluminum ﬁ ns of the indoor/outdoor

unit.

• This may cause injury.

Do not use insecticides or ﬂ ammable sprays on the unit.

• This may cause a ﬁ re or deformation of the unit.

Do not expose pets or houseplants to direct airﬂ ow.

• This may cause injury to the pets or plants.

Do not place other electric appliances or furniture under the indoor/

outdoor unit.

• Water may drip down from the unit, which may cause damage or

malfunction.

Do not leave the unit on a damaged installation stand.

• The unit may fall and cause injury.

Do not step on an unstable bench to operate or clean the unit.

• This may cause injury if you fall down.

Do not pull the power cord.

• This may cause a portion of the core wire to break, which may cause

overheating or ﬁ re.

SAFETY PRECAUTIONS

Do not charge or disassemble the batteries, and do not throw them

into a ﬁ re.

•

This may cause the batteries to leak, or cause a ﬁ re or explosion.

Do not operate the unit for more than 4 hours at high humidity (80%

RH or more) and/or with windows or outside door left open.

• This may cause the water condensation in the air conditioner, which

may drip down, wetting or damaging the furniture.

• The water condensation in the air conditioner may contribute to growth

of fungi, such as mold.

Do not use the unit for special purposes, such as storing food,

raising animals, growing plants, or preserving precision devices

or art objects.

• This may cause deterioration of quality, or harm to animals and plants.

Do not expose combustion appliances to direct airﬂ ow.

• This may cause incomplete combustion.

Never put batteries in your mouth for any reason to avoid accidental

ingestion.

• Battery ingestion may cause choking and/or poisoning.

Before cleaning the unit, switch it OFF and disconnect the power plug

or turn the breaker OFF.

• This may cause injury, since the fan inside rotates at high speeds during

operation.

When the unit will be unused for a long time, disconnect the power

plug or turn the breaker OFF.

• The unit may accumulate dirt, which may cause overheating or ﬁ re.

Replace all batteries of the remote controller with new ones of the

same type.

• Using an old battery together with a new one may cause overheating,

leakage, or explosion.

If the battery ﬂ uid comes in contact with your skin or clothes, wash

them thoroughly with clean water.

•

If the battery ﬂ uid comes in contact with your eyes, wash them thoroughly

with clean water and immediately seek medical attention.

Ensure that the area is well-ventilated when the unit is operated

together with a combustion appliance.

• Inadequate ventilation may cause oxygen starvation.

Turn the breaker OFF when you hear thunder and there is a possibility

of a lightning strike.

• The unit may be damaged if lightning strikes.

After the air conditioner is used for several seasons, perform inspec-

tion and maintenance in addition to normal cleaning.

• Dirt or dust in the unit may create an unpleasant odor, contribute to

growth of fungi, such as mold, or clog the drain passage, and cause

water to leak from the indoor unit. Consult your dealer for inspection

and maintenance, which require specialized knowledge and skills.

Do not operate switches with wet hands.

• This may cause electric shock.

Do not clean the air conditioner with water or place an object that

contains water, such as a ﬂ ower vase, on it.

• This may cause ﬁ re or electric shock.

Do not step on or place any object on the outdoor unit.

• This may cause injury if you or the object falls down.

IMPORTANT

Dirty ﬁ lters cause condensation in the air conditioner which will contribute to the

growth of fungi such as mold. It is therefore recommended to clean air ﬁ lters every

2 weeks.

Before starting the operation, ensure that the horizontal vanes are in the closed posi-

tion. If operation starts when the horizontal vanes are in the open position, they may

not return to the correct position.

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● OPERATING INSTRUCTIONS ●

SAFETY PRECAUTIONS

WARNING

(Improper handling may have serious consequences, including serious

injury or death.)

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 supervi-

sion 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 mainte-

nance shall not be made by children without supervision.

Do not use the Wi-Fi interface nearby the medical electrical equipment

or people who have a medical device such as a cardiac pacemaker

or an implantable cardioverter-deﬁ brillator.

• It can cause an accident due to malfunctions of the medical equipment

or device.

Do not install the Wi-Fi interface nearby the automatic control devices

such as automatic doors or ﬁ re alarms.

• It can cause accidents due to malfunctions.

Do not touch the Wi-Fi interface with wet hands.

• It can cause damage to the device, electric shock, or ﬁ re.

Do not splash water on the Wi-Fi interface or use it in a bathroom.

• It can cause damage to the device, electric shock, or ﬁ re.

When the Wi-Fi interface is dropped, or the holder or cable is dam-

aged, disconnect the power supply plug or turn the breaker OFF.

• It may cause ﬁ re or electric shock. In this case, consult your dealer.

CAUTION

(Improper handling may have consequences, including injury or damage

to building.)

Do not step on unstable stepstool to set up or clean the Wi-Fi interface.

• It may cause injury if you fall down.

Do not use the Wi-Fi interface nearby other wireless devices, micro-

waves, cordless phones, or facsimiles.

• It can cause malfunctions.

Your MITSUBISHI ELECTRIC product is designed and manufactured with high

quality materials and components which can be recycled and/or reused.

This symbol means that electrical and electronic equipment, batteries and

accumulators, at their end-of-life, should be disposed of separately from your

household waste.

If a chemical symbol is printed beneath the symbol (Fig. 1), this chemical sym-

bol means that the battery or accumulator contains a heavy metal at a certain

concentration. This will be indicated as follows:

Hg: mercury (0.0005%), Cd: cadmium (0.002%), Pb: lead (0.004%)

In the European Union there are separate collection systems for used electrical

and electronic products, batteries and accumulators.

Please, dispose of this equipment, batteries and accumulators correctly at your

local community waste collection/recycling centre.

Please, help us to conserve the environment we live in!

Note:

This symbol mark is for EU countries only.

This symbol mark is according to the directive 2012/19/

EU Article 14 Information for users and Annex IX, and/

or to the directive 2006/66/EC Article 20 Information for

end-users and Annex II.

To dispose of this product, consult your dealer.

DISPOSAL

Fig. 1

For Wi-Fi interface

WARNING

Consult your dealer for installing the air conditioner.

• It should not be installed by the user since installation requires specialized

knowledge and skills. An improperly installed air conditioner may cause

water leakage, ﬁ re, or electric shock.

Provide a dedicated power supply for the air conditioner.

• A non-dedicated power supply may cause overheating or ﬁ re.

Do not install the unit where ﬂ ammable gas could leak.

• If gas leaks and accumulates around the outdoor unit, it may cause an

explosion.

Earth the unit correctly.

• Do not connect the earth wire to a gas pipe, water pipe, lightning rod, or

a telephone earth wire. Improper earthing may cause electric shock.

CAUTION

Install an earth leakage breaker depending on the installation location

of the air conditioner (such as highly humid areas).

• If an earth leakage breaker is not installed, it may cause electric shock.

Ensure that the drain water is properly drained.

• If the drain passage is improper, water may drip down from the indoor/

outdoor unit, wetting and damaging the furniture.

In case of an abnormal condition

Immediately stop operating the air conditioner and consult your dealer.

For installation

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Operation indicator lamp

Remote control

receiving section

Emergency op-

eration switch

Page 14

Horizontal

vane

Air inlet

Air ﬁ lter

Air cleaning ﬁ lter

(Deodorizing ﬁ lter,

black and Silver-

ionized air puriﬁ er

ﬁ lter, blue, option)

Front panel

NAME OF EACH PART

Indoor unit Remote controller

Remote controller

Signal transmitting

section

Distance of signal :

About 6 m

Beep(s) is (are) heard from

the indoor unit when the

signal is received.

Operation dis-

play section

OFF/ON (stop/operate)

button

Temperature

buttons Page 7

Operation

select button

Page 7

ECONO COOL

button Page 10

FAN speed control

button Page 8

VANE control button

Page 8, 14

TIME, TIMER set but-

tons

Page 5, 12

Increase time

Decrease time

CLOCK button

Page 5

RESET button Page 5

Lid

Slide the lid down

to open the remote

controller. Slide it down

further to get to the

weekly timer buttons.

When the remote controller is not used,

place it near this unit.

Only use the remote controller provided

with the unit.

Do not use other remote controllers.

If 2 or more indoor units are installed in

proximity to one another, an indoor unit

that is not intended to be operated may

respond to the remote controller.

i-save button

Page 10

WEEKLY TIMER set

buttons Page 5, 13

Air outlet

Outdoor unit

Outdoor units may be different in appearance.

Air purifying

device Page 15

Air inlet (back and side)

Refrigerant piping

Drainage hose

Air outlet

Drain outlet

WIDE VANE

button Page 8

PURIFIER button

Page 11

DIRECTION

Page 9

POWERFUL

button Page 12

NIGHT MODE

button

Page 11

SENSOR

(i-see) button

Page 6

i-see sensor

Page 6

(Air purifying)

(Power)

Spec name plate *1

Wi-Fi interface

Page 16

Spec name plate *1

*1 The manufacturing year and month are indicated on the spec name plate.

Battery replacement indicator Page 5

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● OPERATING INSTRUCTIONS ●

Installation position:

Left: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the left

Center: Distance to objects (wall, cabinet, etc.) is more than 50 cm to the left

and right

Right: Distance to objects (wall, cabinet, etc.) is less than 50 cm to the right

Setting the installation position

Be sure to set the remote controller in accordance with the installed position of

the indoor unit.

Before operation: Insert the power supply plug into the power outlet and/or

turn the breaker on.

Installing the remote controller batteries

1.

Remove the front lid.

2. Insert the negative

pole of AAA alkaline

batteries ﬁ rst.

3. Install the front lid.

4.

Press RESET.

Setting current time

1. Press CLOCK.

4. Press CLOCK again.

2. Press either the TIME button

or the TIMER buttons to set

the time.

Each press increases/decreas-

es the time by 1 minute (10

minutes when pressed longer).

3. Press the DAY button

to set the day.

Area Left Center Right

Remote controller

display

(Left) (Center) (Right)

PREPARATION BEFORE OPERATION

Hold down on the remote controller for 2 sec-

onds to enter the position setting mode.

Select the target installation position by pressing .

(Each press of the displays the positions in

order:)

Press to complete the position setting.

Note:

The installation position can be set only when all the following conditions are met:

• The remote controller is powered off.

• Weekly timer is not set.

• Weekly timer is not being edited.

1

2

3

(Center) (Right) (Left)

Note:

• Make sure the polarity of the batteries is correct.

• Do not use manganese batteries and leaking batteries. The remote controller

could malfunction.

• Do not use rechargeable batteries.

• The battery replacement indicator lights up when the battery is running low.

In about 7 days after the indicator starts lights up, the remote controller stops

working.

• Replace all batteries with new ones of the same type.

• Batteries can be used for approximately 1 year. However, batteries with ex-

pired shelf lives last shorter.

• Press RESET gently using a thin instrument.

If the RESET button is not pressed, the remote controller may not operate

correctly.

Note:

• Press CLOCK gently using a thin instrument.

Note:

How to set remote controller exclusively for a particular indoor unit

A maximum of 4 indoor units with wireless remote controllers can be used in a room.

To operate the indoor units individually with each remote controller, assign a number

to each remote controller according to the number of the indoor unit.

This setting can be set only when all the following conditions are met:

• The remote controller is powered OFF.

(1) Hold down button on the remote controller for 2 seconds to enter the pairing

mode.

(2) Press button again and assign a number to each remote controller.

Each press of button advances the number in the following order: 1 → 2 →

3 → 4.

(3) Press button to complete the pairing setting.

After you turn the breaker ON, the remote controller that ﬁ rst sends a signal to an

indoor unit will be regarded as the remote controller for the indoor unit.

Once they are set, the indoor unit will only receive the signal from the assigned

remote controller afterwards.

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I-SEE OPERATION

Press during COOL, DRY, HEAT and AUTO mode

to activate the i-see control mode.

• Press gently using a thin instrument.

• lights. (Operation display section)

• The default setting is “active”.

2Press several times to cancel the i-see control

mode.

Note:

Any person at the following places cannot be detected:

• Along the wall on which the air conditioner is installed

• Directly under the air conditioner

• Where any obstacle, such as furniture, is between the person and the air

conditioner

A person may not be detected in the following situations:

• Room temperature is high.

• A person wears heavy clothes and his/her skin is not exposed.

• A heating element of which temperature changes significantly is present.

• Some heat sources, such as a small child or pet, may not be sensed.

• A heat source and the air conditioner are more than 6 m apart.

• A heat source does not move for a long time.

Do not touch the i-see sensor. This may cause malfunction of the i-see sensor.

The intermittent operating sound is a normal sound produced when the i-see

sensor is moving from side to side.

Refer to page 9 “Absence Detection” for and .

1

2

In the i-see control mode, the room temperature is controlled based on the

sensible temperature.

Cancel

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● OPERATING INSTRUCTIONS ●

AUTO mode (Auto change over)

The unit selects the operation mode according to the difference between the

room temperature and the set temperature. During AUTO mode, the unit

changes mode (COOL↔HEAT) when the room temperature is about 2°C

away from the set temperature for more than 15 minutes.

Note:

Auto Mode is not recommended if this indoor unit is connected to a MXZ

type outdoor unit. When several indoor units are operated simultaneously,

the unit may not be able to switch operation mode between COOL and

HEAT. In this case, the indoor unit becomes standby mode (Refer to table

of Operation indicator lamp).

COOL mode

Enjoy cool air at your desired temperature.

Note:

Do not operate COOL mode at very low outside temperatures (less than

-10°C). Water condensed in the unit may drip and wet or damage furni-

ture, etc.

DRY mode

Dehumidify your room. The room may be cooled slightly.

Temperature cannot be set during DRY mode.

HEAT mode

Enjoy warm air at your desired temperature.

FAN mode

Circulate the air in your room.

Note:

After COOL/DRY mode operation, it is recommended to operate in the

FAN mode to dry inside the indoor unit.

Note:

Multi system operation

Two or more indoor units can be operated by one outdoor unit. When several

indoor units are operated simultaneously, cooling/dry/fan and heating opera-

tions cannot be done at the same time. When COOL/DRY/FAN is selected with

one unit and HEAT with another or vice versa, the unit selected last goes into

standby mode.

Operation indicator lamp

The operation indicator lamp shows the operation state of the unit.

Indication Operation state

Standby mode (only during multi system operation)

Lit Blinking

1Press to start the operation.

2Press to select operation mode. Each press

changes mode in the following order:

3Press or to set the temperature.

Each press raises or lowers the temperature by 1°C.

Press to stop the operation.

SELECTING OPERATION MODES

(AUTO) (COOL) (DRY) (HEAT) (FAN)

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Press to select fan speed. Each press changes

fan speed in the following order:

• Two short beeps are heard from the indoor unit when set to AUTO.

• Use higher fan speed to cool/heat the room quicker. It is recommended

to lower the fan speed once the room is cool/warm.

• Use lower fan speed for quiet operation.

Note:

Multi system operation

When several indoor units are operated simultaneously by one outdoor unit for

heating operation, the temperature of the airﬂ ow may be low. In this case, it is

recommended to set the fan speed to AUTO.

(AUTO) (Silent) (Low) (Med.) (High) (Super High)

Press to select airﬂ ow direction. Each

press changes airﬂ ow direction in the following order:

(AUTO) .........The vane is set to the most efﬁ cient airﬂ ow direction. COOL/

DRY/FAN: horizontal position. HEAT: position (4).

(Manual) .......For efficient air conditioning, select the upper position for

COOL/DRY, and the lower position for HEAT. If the lower

position is selected during COOL/DRY, the vane automatically

moves to the upward position (1) after 0.5 to 1 hour to prevent

any condensation from dripping.

(Swing) .........The vane moves up and down intermittently.

• Two short beeps are heard from the indoor unit when set to AUTO.

• Always use the remote controller when changing the direction of air-

flow. Moving the horizontal vanes with your hands causes them to mal-

function.

• When the breaker is turned on, the horizontal vanes’ position will be

reset in about a minute, then the operation will start. The same is true

in the emergency cooling operation.

• When the horizontal vanes seem to be in an abnormal position, see

page 17 .

• The right and left horizontal vanes set to the same level may not align

perfectly.

(AUTO) (1) (2) (3) (4) (5) (SWING)

FAN SPEED AND AIRFLOW DIRECTION ADJUSTMENT

Press to select airﬂ ow direction. Each press

changes airﬂ ow direction in the following order:

(

SWING

)

Left-right Airflow direction

Fan speed direction

Up-down Airflow direction

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● OPERATING INSTRUCTIONS ●

Airﬂ ow Control mode offers air conditioning according to a location of

an occupant in a room detected by i-see Sensor.

1Press during COOL, DRY, HEAT or AUTO

mode to activate the AIRFLOW CONTROL mode. This

mode is only available when the i-see control mode is

effective.

2Each press of changes AIRFLOW CONTROL

in the following order:

(INDIRECT) : An occupant will be less exposed to

direct airﬂ ow.

(DIRECT) : Mainly the vicinity of an occupant will

be air-conditioned.

(EVEN) : The unit learns the area where an

occupant spend most of the time,

and evens out the temperature of

that area.

• Horizontal and vertical airflow directions will be automatically selected.

• When more than a couple of people are in a room, the AIRFLOW

CONTROL mode may work less effectively.

• If you still feel uncomfortable with the air direction determined by the

INDIRECT mode, adjust the air direction manually. Page 8

3Cancelling the i-see control mode automatically can-

cels the AIRFLOW CONTROL mode.

• The AIRFLOW CONTROL mode is also cancelled when the VANE or

WIDE VANE buttons is pressed.

AIRFLOW CONTROL MODE

This function automatically changes the operation to No occupancy

energy-saving mode or No occupancy Auto-OFF mode when nobody

is in the room.

ABSENCE DETECTION

1To activate this No occupancy energy-saving mode,

press until appears on the operation display of

the remote controller.

2To activate this No occupancy Auto-OFF mode, press

until appears on the operation display of the

remote controller.

3Press again to cancel the ABSENCE DETEC-

TION.

• Even if the unit is turned OFF due to No occupancy Auto-OFF mode,

the display of the remote controller remains to indicate the unit is in

operation. Press then press again to restart opera-

tion.

• When OFF timer is set, a priority is given to OFF timer.

• No occupancy energy saving mode or No occupancy Auto-OFF mode

are not available during POWERFUL operation.

• The unit will not be turned off if no one is detected during normal

operation mode, even though No occupancy Auto-OFF mode is acti-

vated.

(INDIRECT) (DIRECT) (EVEN) (OFF)

Energy-

saving

mode

Auto-OFF

mode

No

occupancy

detected Occupancy

detected

About

10 min.

Normal Normal

Normal

About 1 HR.

Saving energy Saving more

Turn OFF

Saving energy

Cancel

JG79Y181H01_en.indd 9 2016/10/26 14:15:58

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I-SAVE OPERATION

1Press during COOL, ECONO COOL, or HEAT

mode to select i-save mode.

2Set the temperature, fan speed, and airﬂ ow direction.

• The same setting is selected from the next time by simply pressing

.

• Two settings can be saved. (One for COOL/ECONO COOL, one for

HEAT)

• Select the appropriate temperature, fan speed, and airflow direction

according to your room.

Press again to cancel i-save operation.

• i-save operation also is cancelled when the MODE or POWERFUL

button is pressed.

A simpliﬁ ed set back function enables to recall the preferred (preset)

setting with a single push of the button. Press the button again

and you can go back to the previous setting in an instance.

ECONO COOL OPERATION

Press during COOL mode page 7 to start

ECONO COOL operation.

The unit performs swing operation vertically in various cycles according to the

temperature airflow.

Press again to cancel ECONO COOL operation.

• ECONO COOL operation is also cancelled when the VANE or POW-

ERFUL button is pressed.

Swing airﬂ ow (change of airﬂ ow) makes you feel cooler than station-

ary airﬂ ow.

The set temperature and the airﬂ ow direction are automatically changed

by the microprocessor. It is possible to perform cooling operation with

keeping comfort. As a result energy can be saved.

Note:

Example of use:

1. Low energy mode

Set the temperature 2°C to 3°C warmer in COOL and cooler in HEAT mode.

This setting is suitable for unoccupied room, and while you are sleeping.

2. Saving frequently used settings

Save your preferred setting for COOL/ECONO COOL and HEAT. This ena-

bles you to select your preferred setting with a single push of the button.

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● OPERATING INSTRUCTIONS ●

NIGHT MODE OPERATION

Press during operation to activate NIGHT mode.

• The operation indicator lamp dims.

• The beep sound will be disabled except that emitted when the opera-

tion is started or stopped.

• Noise level of the outdoor unit will be lower than that mentioned in

SPECIFICATIONS.

Press again to cancel NIGHT mode.

Note:

• Noise level of the outdoor unit may not change after start-up of the unit, dur-

ing the protection operation, or depending on other operating conditions.

• The fan speed of the indoor unit will not change.

•

The operation indicator lamp will be hard to be seen in a bright room.

•

Operating POWERFUL operation during NIGHT mode will increase the noise

level of the outdoor unit.

•

Noise level of the outdoor unit will not decrease during Multi system operation.

AIR PURIFYING OPERATION

Press to start AIR PURIFYING operation.

• AIR PURIFYING lamp turns on. (Display section)

Press again to cancel AIR PURIFYING opera-

tion.

• AIR PURIFYING lamp turns off. (Display section)

Note:

• Never touch the air purifying device during operation. Although the air pu-

rifying device is safety-conscious design, touching this device could be the

cause of trouble as this device discharge high voltage electricity.

• A “hissing” sound may be heard during the air purifying operation. This sound

is produced when plasma is being discharged. This is not a malfunction.

• Air purifying lamp does not turn on if the front panel is not closed completely.

In the AIR PURIFYING operation, the indoor unit built-in device reduces

airborne fungi, viruses, mold, and allergens.

NIGHT mode changes the brightness of the operation indicator, disables

the beep sound and limits the noise level of the outdoor unit.

JG79Y181H01_en.indd 11 2016/10/26 14:15:59

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Press during COOL or HEAT mode page 7 to

start POWERFUL operation.

Fan speed : Exclusive speed for POWERFUL mode

Horizontal vane : Set position, or downward airflow position during

AUTO setting

• Temperature cannot be set during POWERFUL operation.

Press again to cancel POWERFUL operation.

• POWERFUL operation is also cancelled automatically in 15 minutes,

or when the OFF/ON, FAN, ECONO COOL or i-save button is pressed.

POWERFUL OPERATION

1Press or during operation to set the timer.

(ON timer) : The unit turns ON at the set time.

(OFF timer) : The unit turns OFF at the set time.

* or blinks.

*

Make sure that the current time and day are set correctly.

Page 5

2Press (Increase) and (Decrease) to set the

time of timer.

Each press increases or decreases the set time by 10 minutes.

• Set the timer while or is blinking.

3Press or again to cancel timer.

Note:

• ON and OFF timers can be set together. mark indicates the order of timer

operations.

• If power failure occurs while ON/OFF timer is set, see page 14 “Auto restart

function”.

TIMER OPERATION (ON/OFF TIMER)

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● OPERATING INSTRUCTIONS ●

WEEKLY TIMER OPERATION

• A maximum of 4 ON or OFF timers can be set for individual days of the week.

• A maximum of 28 ON or OFF timers can be set for a week.

Setting the weekly timer

* Make sure that the current time and day are set correctly.

1Press to enter the weekly timer setting mode.

2Press and to select setting day and number.

3Press , , and to set ON/OFF, time, and

temperature.

Press and to continue setting the timer for

other days and/or numbers.

4Press to complete and transmit the weekly timer

setting.

Note:

• Press to transmit the setting information of weekly timer to the indoor

unit. Point the remote controller toward the indoor unit for 3 seconds.

• When setting the timer for more than one day of the week or one number,

does not have to be pressed per each setting. Press once

after all the settings are complete. All the weekly timer settings will be saved.

• Press to enter the weekly timer setting mode, and press and hold

for 5 seconds to erase all weekly timer settings. Point the remote

controller toward the indoor unit.

5Press to turn the weekly timer ON. ( lights.)

* When the weekly timer is ON, the day of the week whose timer setting

is complete, will light.

Press again to turn the weekly timer OFF. (

goes out.)

Note:

The saved settings will not be cleared when the weekly timer is turned OFF.

Checking weekly timer setting

1Press to enter the weekly timer setting mode.

* blinks.

2Press or to view the setting of the particular

day or number.

Press to exit the weekly timer setting.

Note:

When all days of the week are selected to view the settings and a different set-

ting is included among them, will be displayed.

* which was blink-

ing goes out, and the

current time will be

displayed.

* blinks.

Note:

The simple ON/OFF timer setting is available while the weekly timer is on. In

this case, the ON/OFF timer has priority over the weekly timer; the weekly timer

operation will start again after the simple ON/OFF timer is complete.

E.g. : Runs at 24°C from waking up to leaving home, and runs at 27°C from

getting home to going to bed on weekdays.

Runs at 27°C from waking up late to going bed early on weekends.

Setting1 Setting2 Setting3 Setting4

Setting1 Setting2

6:00 8:30 17:30 22:00

8:00 21:00

24°C 27°C

ON OFF ON OFF

ON OFF

Mon

Fri

~

Sat

Sun

~

27°C

Pressing selects the day of

the week to be set.

Pressing selects

the setting number.

* All days can be selected.

E.g. : [Mon Tue ... Sun]

and [1] are selected.

E.g. : [ON], [6:00]

and [24°C] are

selected.

Pressing selects

ON/OFF timer.

Pressing deletes

timer setting.

Pressing

adjusts the time.

Pressing

adjusts the tem-

perature.

* Hold down the button to change the time quickly.

JG79Y181H01_en.indd 13 2016/10/26 14:16:01

En-14

This function locks operation mode only. Other functions, such as OFF/

ON, temperature setting, or airﬂ ow direction adjustment, are available.

1Hold down and simultaneously for 2 sec-

onds while the unit is not operating to enable OPERA-

TION LOCK.

The icon for the locked operation mode blinks.

2Hold down and simultaneously for 2

seconds again while the unit is not operating to disable

OPERATION LOCK.

• The icon for the locked operation mode blinks when

and are held down to enable or disable

OPERATION LOCK or is pressed during opera-

tion while OPERATION LOCK is enabled.

• AIR PURIFYING operation is not available when OP-

ERATION LOCK is enabled in a mode other than FAN

mode.

Operation indicator lamp

When the remote controller cannot be used...

Emergency operation can be activated by pressing the emergency operation

switch (E.O.SW) on the indoor unit.

Each time the E.O.SW is pressed, the operation changes in

the following order:

If a power failure occurs or the main power is turned off during operation, “Auto

restart function” automatically starts operation in the same mode as the one set

with the remote controller just before the shutoff of the main power. When timer is

set, timer setting is cancelled and the unit starts operation when power is resumed.

If you do not want to use this function, please consult the service repre-

sentative because the setting of the unit needs to be changed.

Set temperature : 24°C

Fan speed : Medium

Horizontal vane : Auto

Emergency COOL

Emergency HEAT

Stop

Note:

• The ﬁ rst 30 minutes of operation is test run. Temperature control does not

work, and fan speed is set to High.

• In the emergency heating operation, the fan speed gradually rises to blow out

warm air.

• In the emergency cooling operation, the horizontal vanes’ position will be

reset in about a minute, then the operation will start.

OPERATION LOCK EMERGENCY OPERATION

AUTO RESTART FUNCTION

JG79Y181H01_en.indd 14 2016/10/26 14:16:02

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● OPERATING INSTRUCTIONS ●

1. Open the front panel.

Note: You cannot remove the front panel.

2. Rotate the stoppers as indicated by the arrows until they click.

3. Lower the front panel slowly and it will be held open with the stoppers.

4. Pinch the tabs on the ﬁ lters; slightly push them up

and pull down toward you to remove the ﬁ lters.

5. Close the front panel securely and press the posi-

tions indicated by the arrows.

6. Clean the front panel without detaching it from the

unit.

• Wipe with a soft dry cloth.

• Use the dedicated SOFT DRY CLOTH. Parts Number MAC-1001CL-E

• Do not soak the front panel in water.

Instructions:

CLEANING

• Switch off the power supply or turn off the breaker before cleaning.

• Be careful not to touch the metal parts with your hands.

• Do not use benzine, thinner, polishing powder, or insecticide.

• Use only diluted mild detergents.

• Do not use a scrubbing brush, a hard sponge, or the like.

• Do not soak or rinse the horizontal vane.

• Do not use water hotter than 50°C.

• Do not expose parts to direct sunlight, heat, or ﬁ re to dry.

• Do not apply excessive force on the fan as it may cause cracks or breakage.

Air ﬁ lter

• Clean every 2 weeks

• Remove dirt by a vacuum cleaner, or rinse with water.

• After washing with water, dry it well in shade.

Important

• Clean the ﬁ lters regularly for best performance and to

reduce power consumption.

• Dirty ﬁ lters cause condensation in the air conditioner

which will contribute to the growth of fungi such as

mold. It is therefore recommended to clean air ﬁ lters

every 2 weeks.

• Do not touch the i-see sensor.

• The air purifying device does not function for safety for

a couple minutes after the operation starts or the front

panel is opened/closed.

• Do not disassemble the air purifying device.

• Do not touch any parts other than the frame of the air

purifying device.

Front panel

Air purifying device

Every 3 months:

• Remove dirt by a vacuum cleaner.

When dirt cannot be removed by

vacuum cleaning:

•

Soak the ﬁ lter together with its frame in

lukewarm water and rinse it.

• After washing, dry it well in shade.

and

This information is based on REGULATION (EU) No 528/2012

MODEL NAME Treated Article

(Parts name)

Active Substances

(CAS No.) Property Instruction for Use

(Safe handling information)

MAC-2390FT-E FILTER Silver zinc zeolite

(130328-20-0) Antibacterial

• Use this product in line with the instruction manual indications and

for the intended purpose only.

• Do not put into mouth. Keep away from children.

Air cleaning ﬁ lter

(Deodorizing ﬁ lter, black)

Every 3 months:

• Remove dirt by a vacuum cleaner, or soak the framed ﬁ lter in lukewarm

water (30 to 40°C) for about 15 minutes. Rinse well.

• After washing, dry it well in shade.

• Deodorizing feature recovers by cleaning the ﬁ lter.

When dirt or smell cannot be removed by cleaning:

• Replace it with a new air cleaning ﬁ lter.

• Parts Number MAC-3010FT-E

(Silver-ionized air puriﬁ er ﬁ lter, blue,

option)

Every 3 months:

• Remove dirt by a vacu-

um cleaner.

When dirt cannot be

removed by

vacuum cleaning:

•

Soak the ﬁ lter and its

frame in lukewarm wa-

ter before rinsing it.

•

After washing, dry it well

in shade.

Install all tabs

of the air ﬁ lter.

Every year:

• Replace it with a new air cleaning ﬁ lter for best performance.

• Parts Number MAC-2390FT-E

Important

• The surface of the indoor unit is easily scratched, so never

rub or hit the unit with something hard. Also, when installing

or removing the front panel, handle it with care to prevent

scratches on it.

• Do not use abrasive cleaner to prevent scratches on the sur-

face of the indoor unit.

• It is very easy to get ﬁ ngerprints on the surface of the indoor

unit. When ﬁ ngerprints are noticeable, gently wipe them off

with a soft dry cloth.

• When using a commercially available chemical impregnated

cloth, follow its instructions.

• Do not leave the front panel open for a prolonged time.

2

3

2

3

stopper

1

4

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Wi-Fi INTERFACE SETTING UP

This Wi-Fi interface, communicates the status information and controls

the commands from the MELCloud by connecting to an indoor unit.

Wi-Fi interface introduction

No. Item Description

1 MODE switch It selects modes.

2 RESET switch It resets the system and ALL settings.

3 ERR LED (Orange) It shows the network error state.

4 NET LED (Green) It shows the network state.

5 MODE LED (Orange) It shows the Access point mode state.

6 UNIT LED (Green) It shows the indoor unit state.

RESET

ERR

NET

MODE

UNIT

MODE

3

4

5

6

21

(1) MODE switch

• The MODE switch is used for selecting modes in conﬁ gurations.

(2) RESET switch

• Hold down the RESET switch for 2 seconds to reboot the system.

• Hold down the RESET switch for 14 seconds to initialize the Wi-Fi interface

to the factory default.

When the Wi-Fi interface is reset to the factory default, ALL the con-

ﬁ guration information will be lost. Take great care in implementing this

operation.

1Open the front panel and remove the Wi-Fi inter-

face. Page 15 (Front panel)

2Set up a connection between the Wi-Fi interface and

the router. Refer to the SETUP MANUAL and SETUP

QUICK REFERENCE GUIDE provided with the unit.

For SETUP MANUAL, please go to the website below.

http://www.melcloud.com/Support

3Put the Wi-Fi interface back and close the front panel

after the setup is completed. Page 15 (Front panel)

4For MELCloud User Manual, please go to the website

below.

http://www.melcloud.com/Support

Note:

• Ensure that the Router supports the WPA2-AES encryption setting before

starting the Wi-Fi interface setup.

• The End user should read and accept the terms and conditions of the Wi-Fi

service before using this Wi-Fi interface.

• To complete connection of this Wi-Fi interface to the Wi-Fi service, the Rout-

er may be required.

• This Wi-Fi interface will not commence transmission of any operational data

from the system until the End user registers and accepts the terms and con-

ditions of the Wi-Fi service.

• This Wi-Fi interface should not be installed and connected to any Mitsubishi

Electric system which is to provide application critical cooling or heating.

• Please write down the information regarding the Wi-Fi interface setting on the

last page of this manual, when you set up this Wi-Fi interface.

• At the time of relocation or disposal, reset the Wi-Fi interface to the factory

default.

Mitsubishi Electric’s Wi-Fi interface is designed for communication to

Mitsubishi Electric’s MELCloud Wi-Fi service.

Third party Wi-Fi interfaces cannot be connected to MELCloud.

Mitsubishi Electric is not responsible for any (i) underperformance of a

system or any product;

(ii) system or product fault; or (iii) loss or damage to any system or product;

which is caused by or arises from connection to and/or use of any third

party Wi-Fi interface or any third party Wi-Fi service with Mitsubishi Electric

equipment.

For the latest information regarding MELCloud from Mitsubishi Electric

Corporation, please visit www.MELCloud.com.

Wi-Fi interface Wi-Fi interface

JG79Y181H01_en.indd 16 2016/10/26 14:16:03

En-17

● OPERATING INSTRUCTIONS ●

Even if these items are checked, when the unit does not recover from the

trouble, stop using the air conditioner and consult your dealer.

Symptom Explanation & Check points

Indoor Unit

The unit cannot be operated. • Is the breaker turned on?

• Is the power supply plug connected?

• Is the ON timer set? Page 12

The horizontal vane does not

move. • Are the horizontal vane and the vertical vane

installed correctly?

• Is the fan guard deformed?

• When the breaker is turned on, the horizontal

vanes’ position will be reset in about a minute.

After the reset has completed, the normal hori-

zontal vanes’ operation resumes. The same is

true in the emergency cooling operation.

The unit cannot be operated for

about 3 minutes when restarted. • This protects the unit according to instructions

from the microprocessor. Please wait.

Mist is discharged from the air

outlet of the indoor unit. •

The cool air from the unit rapidly cools moisture

in the air inside the room, and it turns into mist.

The swing operation of the HORI-

ZONTAL VANE is suspended for a

while, then restarted.

• This is for the swing operation of the HORIZON-

TAL VANE to be performed normally.

When SWING is selected in

COOL/DRY/FAN mode, the

lower horizontal vane does not

move.

• It is normal that the lower horizontal vane does

not move when SWING is selected in COOL/

DRY/FAN mode.

The airﬂ ow direction changes

during operation.

The direction of the horizontal

vane cannot be adjusted with

the remote controller.

• When the unit is operated in COOL or DRY

mode, if the operation continues with air blow-

ing down for 0.5 to 1 hour, the direction of the

airﬂ ow is automatically set to upward position

to prevent water from condensing and dripping.

• In the heating operation, if the airﬂ ow tem-

perature is too low or when defrosting is being

done, the horizontal vane is automatically set

to horizontal position.

The operation stops for about

10 minutes in the heating

operation.

• Outdoor unit is in defrost.

Since this is completed in max. 10 minutes,

please wait. (When the outside temperature is

too low and humidity is too high, frost is formed.)

The unit starts operation by

itself when the main power is

turned on, but hasn’t received

sign from the remote controller.

• These models are equipped with an auto

restart function. When the main power is

turned off without stopping the unit with the

remote controller and is turned on again, the

unit starts operation automatically in the same

mode as the one set with the remote control-

ler just before the shutoff of the main power.

Refer to “Auto restart function”. Page 14

The two horizontal vanes touch

each other. The horizontal

vanes are in an abnormal posi-

tion. The horizontal vanes do

not return to the correct “close

position”.

Perform one of the following:

•

Turn off and on the breaker. Make sure the hori-

zontal vanes move to the correct “close position”.

• Start and stop the emergency cooling operation

and make sure the horizontal vanes move to the

correct “close position”.

In COOL/DRY mode, when the

room temperature reaches near

the set temperature, the outdoor

unit stops, then the indoor unit

operates at low speed.

• When the room temperature deviates from the

set temperature, the indoor fan starts running

according to the settings on the remote control-

ler.

The indoor unit discolors over

time. • Although plastic turns yellow due to the inﬂ uence

of some factors such as ultraviolet light and

temperature, this has no effect on the product

functions.

The operation indicator lamp is

dim. The unit does not beep. • Is the NIGHT mode set?

Multi system

The indoor unit which is not

operating becomes warm and a

sound, similar to water ﬂ owing,

is heard from the unit.

• A small amount of refrigerant continues to ﬂ ow

into the indoor unit even though it is not operat-

ing.

When heating operation is

selected, operation does not

start right away.

• When operation is started during defrosting of

outdoor unit is done, it takes a few minutes (max.

10 minutes) to blow out warm air.

Outdoor Unit

The fan of the outdoor unit does

not rotate even though the com-

pressor is running. Even if the

fan starts to rotate, it stops soon.

• When the outside temperature is low during

cooling operation, the fan operates intermittently

to maintain sufﬁ cient cooling capacity.

Water leaks from the outdoor

unit. • During COOL and DRY operations, pipe or pipe

connecting sections are cooled and this causes

water to condense.

• In the heating operation, water condensed on

the heat exchanger drips down.

• In the heating operation, the defrosting operation

makes ice forming on the outdoor unit melt and

drip down.

White smoke is discharged from

the outdoor unit. • In the heating operation, vapor generated by the

defrosting operation looks like white smoke.

Symptom Explanation & Check points

Remote controller

The display on the remote

controller does not appear or it

is dim. The indoor unit does not

respond to the remote control

signal.

• Are the batteries exhausted? Page 5

• Is the polarity (+, -) of the batteries correct?

Page 5

• Are any buttons on the remote controller of other

electric appliances being pressed?

The operation mode cannot be

changed. • Disable the OPERATION LOCK.

Does not cool or heat

The room cannot be cooled or

heated sufﬁ ciently. • Is the temperature setting appropriate?

Page 7

• Is the fan setting appropriate? Please change

fan speed to High or Super High. Page 8

• Are the ﬁ lters clean? Page 15

•

Is the fan or heat exchanger of the indoor unit clean?

• Are there any obstacles blocking the air inlet or

outlet of the indoor or outdoor unit?

• Is a window or door open?

• It may take a certain time to reach the setting

temperature or may not reach that depending on

the size of the room, the ambient temperature,

and the like.

• Is the NIGHT mode set?

The room cannot be cooled

sufﬁ ciently. • When a ventilation fan or a gas cooker is used

in a room, the cooling load increases, resulting

in an insufﬁ cient cooling effect.

• When the outside temperature is high, the cooling

effect may not be sufﬁ cient.

The room cannot be heated

sufﬁ ciently. • When the outside temperature is low, the heating

effect may not be sufﬁ cient.

Air does not blow out soon in

the heating operation. • Please wait as the unit is preparing to blow out

warm air.

Airﬂ ow

The air from the indoor unit

smells strange. • Are the ﬁ lters clean? Page 15

• Is the fan or heat exchanger of the indoor unit

clean?

• The unit may suck in an odor adhering to the

wall, carpet, furniture, cloth, etc. and blow it out

with the air.

Sound

Cracking sound is heard. • This sound is generated by the expansion/con-

traction of the front panel, etc. due to change in

temperature.

“Burbling” sound is heard. • This sound is heard when the outside air is

absorbed from the drain hose by turning on the

range hood or the ventilation fan, making water

ﬂ owing in the drain hose to spout out.

This sound is also heard when the outside air

blows into the drain hose in case the outside

wind is strong.

Mechanical sound is heard

from the indoor unit. • This is the switching sound in turning on/off the

fan or the compressor.

The sound of water ﬂ owing is

heard. • This is the sound of refrigerant or condensed

water ﬂ owing in the unit.

Hissing sound is sometimes

heard. • This is the sound when the ﬂ ow of refrigerant

inside the unit is changed.

Timer

Weekly timer does not operate

according to settings. • Is the ON/OFF timer set? Page 12

• Transmit the setting information of the weekly

timer to the indoor unit again. When the infor-

mation is successfully received, a long beep will

sound from the indoor unit. If information fails to

be received, 3 short beeps will be heard. Ensure

information is successfully received. Page 13

• When a power failure occurs and the main power

turns off, the indoor unit built-in clock will be

incorrect. As a result, the weekly timer may not

work normally.

Be sure to place the remote controller where

the signal can be received by the indoor unit.

Page 5

The unit starts/stops the opera-

tion by itself. • Is the weekly timer set? Page 13

Wi-Fi interface

When error occurs during con-

nection setup or operation. Refer to the SETUP MANUAL.

For SETUP MANUAL, please go to the website

below.

http://www.melcloud.com/Support

WHEN YOU THINK THAT TROUBLE HAS OCCURRED

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En-18

In the following cases, stop using the air conditioner and consult your dealer.

• When water leaks or drips from the indoor unit.

• When the operation indicator lamp blinks.

• When the breaker trips frequently.

• The remote control signal is not received in a room where an electronic ON/OFF type ﬂ uorescent lamp (inverter-type ﬂ uorescent lamp, etc.) is used.

• Operation of the air conditioner interferes with radio or TV reception. An ampliﬁ er may be required for the affected device.

• When an abnormal sound is heard.

• When any refrigerant leakage is found.

WHEN YOU THINK THAT TROUBLE HAS OCCURRED

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● OPERATING INSTRUCTIONS ●

Installation place

Avoid installing the air conditioner in the following places.

• Where there is much machine oil.

• Salty places such as the seaside.

• Where sulﬁ de gas is generated such as hot spring, sewage, waste water.

•

Where oil is splashed or where the area is ﬁ lled with oily smoke (such as cooking areas

and factories, in which the properties of plastic could be changed and damaged).

• Where there is high-frequency or wireless equipment.

• Where the air from the outdoor unit air outlet is blocked.

•

Where the operation sound or air from the outdoor unit bothers the house next door.

• The mounting height of indoor unit 1.8 m to 2.3 m is recommended. If it is

impossible, please consult your dealer.

• Do not operate the air conditioner during interior construction and ﬁ nishing

work, or while waxing the ﬂ oor. Before operating the air conditioner, ventilate

the room well after such work is performed. Otherwise, it may cause volatile

elements to adhere inside the air conditioner, resulting in water leakage or

scattering of dew.

• Do not use the Wi-Fi interface nearby the medical electrical equipment or peo-

ple who have a medical device such as a cardiac pacemaker or an implantable

cardioverter-deﬁ brillator.

It can cause an accident due to malfunctions of the medical equipment or

device.

• This equipment should be installed and operated with a minimum distance of

20 cm between the device and the user or bystanders.

• Do not use the Wi-Fi interface nearby other wireless devices, microwaves,

cordless phones, or facsimiles.

It can cause malfunctions.

Electrical work

• Provide an exclusive circuit for the power supply of the air conditioner.

• Be sure to observe the breaker capacity.

If you have any questions, consult your dealer.

INSTALLATION PLACE AND

ELECTRICAL WORK

1Operate by COOL mode with the highest temperature

set or FAN mode for 3 to 4 hours. Page 7

• This dries the inside of the unit.

• Moisture in the air conditioner contributes to favorable conditions for

growth of fungi, such as mold.

2Press to stop the operation.

3Turn off the breaker and/or disconnect the power sup-

ply plug.

4Remove all batteries from the remote controller.

When using the air conditioner again:

1Clean the air ﬁ lter. Page 15

2Check that the air inlet and outlet of the indoor and

outdoor units are not blocked.

3Check that the earth is connected correctly.

4Refer to the “PREPARATION BEFORE OPERATION”,

and follow the instructions. Page 5

WHEN THE AIR CONDITIONER IS NOT

GOING TO BE USED FOR A LONG TIME

To prevent the effects

of a ﬂ uorescent lamp,

keep as far apart as

possible.

wall, etc.

Inverter-type

ﬂ uorescent lamp

Keep a space

to prevent

the picture

distortion or

the noise.

1 m

or

more

Radio

100 mm or

more

TV

Cordless

phone or

Portable

phone 3 m or more

1 m

or more

The installation location of the outdoor

unit should be at least 3 m away from

the antennas for TV sets, radios, etc. In

areas where the reception is weak, pro-

vide greater space between the outdoor

unit and the antenna of the affected

device if operation of the air conditioner

interferes with radio or TV reception.

(25, 35, 50VG/50HZ, 60)

200/500 mm or more

For the optimum ef-

ﬁ ciency and to extend

the life time of using,

the outdoor unit

should be installed in

a well-ventilated dry

place.

JG79Y181H01_en.indd 19 2016/10/26 14:16:04

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Mitsubishi Electric MSZ-LN25VGW Split Type Air Conditioners Manuel utilisateur

Mitsubishi Electric MSZ-LN25VGW Split Type Air Conditioners Manuel utilisateur

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