

SPLIT-TYPE AIR CONDITIONERS
INDOOR UNIT
MSZ-HR25VF MSZ-HR35VF MSZ-HR42VF MSZ-HR50VF

OPERATING INSTRUCTIONS

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SAFETY PRECAUTIONS
Meanings of symbols displayed on indoor unit and/or outdoor unit
![]() | WARNING (Risk of fire) | This unit uses a flammable refrigerant. If refrigerant leaks and comes in contact with fire or heating part, it will create harmful gas and there is risk of fire. |
![]() | 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. | |
- 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.
Meanings of symbols used in this manual
: Be sure not to do.
: Be sure to follow the instruction.
: Never insert your finger 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 fire.
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![]() | Do not connect the power cord to an intermediate point, use an extension cord, or connect multiple devices to a single AC outlet.
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Make sure the power plug is free of dirt and insert it securely into the outlet.
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Do not bundle, pull, damage, or modify the power cord, and do not apply heat or place heavy objects on it.
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Do not turn the breaker OFF/ON or disconnect/connect the power plug during operation.
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Do not expose your body directly to cool air for a prolonged length of time.
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The unit should not be installed, relocated, disassembled, altered, or repaired by the user.
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When installing, relocating, or servicing the unit, make sure that no substance other than the specified refrigerant (R32) enters the refrigerant circuit.
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| This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. | |
| Children should be supervised to ensure that they do not play with the appliance. | |
![]() ![]() | Do not insert your finger, a stick, or other objects into the air inlet or outlet.
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![]() ![]() | 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.
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![]() ![]() | When the air conditioner does not cool or heat, there is a possibility of refrigerant leakage. If any refrigerant leakage is found, stop operations and ventilate the room well and consult your dealer immediately. If a repair involves recharging the unit with refrigerant, ask the service technician for details.
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The user should never attempt to wash the inside of the indoor unit. Should the inside of the unit require cleaning, contact your dealer.
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| The indoor unit must be installed in rooms which exceed the floor space specified. Please consult your dealer. | |
![]() | 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. |
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![]() | Do not touch the air inlet or the aluminum fins of the indoor/outdoor unit.
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Do not use insecticides or flammable sprays on the unit.
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Do not expose pets or houseplants to direct airflow.
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Do not place other electric appliances or furniture under the indoor/ outdoor unit.
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Do not leave the unit on a damaged installation stand.
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Do not step on an unstable bench to operate or clean the unit.
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Do not pull the power cord.
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Do not charge or disassemble the batteries, and do not throw them into a fire.
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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.
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Do not use the unit for special purposes, such as storing food, raising animals, growing plants, or preserving precision devices or art objects.
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Do not expose combustion appliances to direct airflow.
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Never put batteries in your mouth for any reason to avoid accidental ingestion.
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![]() | Before cleaning the unit, switch it OFF and disconnect the power plug or turn the breaker OFF.
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When the unit will be unused for a long time, disconnect the power plug or turn the breaker OFF.
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Replace all batteries of the remote controller with new ones of the same type.
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If the battery fluid comes in contact with your skin or clothes, wash them thoroughly with clean water.
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Ensure that the area is well-ventilated when the unit is operated together with a combustion appliance.
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Turn the breaker OFF when you hear thunder and there is a possibility of a lightning strike.
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After the air conditioner is used for several seasons, perform inspection and maintenance in addition to normal cleaning.
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![]() | Do not operate switches with wet hands.
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Do not clean the air conditioner with water or place an object that contains water, such as a flower vase, on it.
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![]() | Do not step on or place any object on the outdoor unit.
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To use this unit correctly and safely, be sure to read these operating instructions before use.
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| Dirty filters cause condensation in the air conditioner which will contribute to the growth of fungi such as mold. It is therefore recommended to clean air filters every 2 weeks. |
| Before starting the operation, ensure that the horizontal vanes are in the closed position. If operation starts when the horizontal vanes are in the open position, they may not return to the correct position. |
For installation
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| Consult your dealer for installing the air conditioner.
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Provide a dedicated power supply for the air conditioner.
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Do not install the unit where flammable gas could leak.
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![]() | Earth the unit correctly.
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![]() | Install an earth leakage breaker depending on the installation location of the air conditioner (such as highly humid areas).
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Ensure that the drain water is properly drained.
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In case of an abnormal condition
Immediately stop operating the air conditioner and consult your dealer.
DISPOSAL

Fig. 1
To dispose of this product, consult your dealer.
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.
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 symbol 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!
NAME OF EACH PART
Indoor unit

- Front panel
- Heat exchanger
- Air inlet
- Spec name plate *1
- Air outlet
- Horizontal vane
- Air cleaning filter (Silver-ionized air purifier filter, option)
- Air filter
- Operation indicator lamp
- Remote control receiving section
- Emergency operation switch *2
Outdoor unit

- Air inlet (back and side)
- Spec name plate *1
- Refrigerant piping
- Drainage hose
- Air outlet
- Drain outlet
Outdoor units may be different in appearance.
*1 The manufacturing year and month are indicated on the spec name plate.
*2 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:
Emergency Emergency
COOL HEAT Stop

: Lit
: Not lit
Set temperature : 24°C
Fan speed : Medium
Horizontal vane : Auto
PREPARATION BEFORE OPERATION
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 back lid.
2. Insert the negative pole of AAA alkaline batteries first.
3. Install the back lid.
4. Press RESET.

• OPERATING INSTRUCTIONS •
Remote controller

- Battery replacement indicator
- Signal transmitting section Distance of signal : About 6 m
Beep(s) is (are) heard from the indoor unit when the signal is received. - ECONO COOL button
- FAN speed control button
- VANE control button
- TIME set buttons
- RESET button
- TIMER mode select button
- Operation select button
- Temperature buttons
- OFF/ON (stop/operate) button
- Operation display section
Press
during operation to set the timer.

Press
to set the time of timer.
OFF/ON (stop/operate) button
Operation select button

Temperature buttons
Each press raises or lowers the temperature by 1°C.
FAN speed control button

Up-down airflow control button

Left-right airflow direction
Move the vertical vane manually before starting operation.

ECONO COOL button
The set temperature and the airflow direction are automatically changed by the microprocessor.
CLEANING
Instructions:
- 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 fire to dry.
- Do not apply excessive force on the fan as it may cause cracks or breakage.

1 Front panel

a)Hinge
b) Hole
- Lift the front panel until a “click” is heard.
- Hold the hinges and pull to remove as shown in the illustration above.
• Wipe with a soft dry cloth or rinse it with water.
• Do not soak it in water for more than two hours.
• Dry it well in shade before installing it.
Install the front panel by following the removal procedure in reverse. Close the front panel securely and press the positions indicated by the arrows.
2 Air filter (Air purifying filter)
- Clean every 2 weeks
- Remove dirt by a vacuum cleaner, or rinse with water.
- After washing with water, dry it well in shade.
3 Air cleaning filter
(Silver-ionized air purifier filter, option)
Every 3 months:
- Remove dirt by a vacuum cleaner.
When dirt cannot be removed by vacuum cleaning:
- Soak the filter and its frame in lukewarm water before rinsing it.
- After washing, dry it well in shade. Install all tabs of the air filter.
Every year:
- Replace it with a new air cleaning filter for best performance.
- Parts Number MAC-2370FT-E

a) Pull to remove from the air filter
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This information is based on REGULATION (EU) No 528/2012
MODEL NAME | Treated Article (Parts name) | Active Substances (CAS No.) | Property | Instruction for Use |
MSZ-HR25/35/42/50VF | FILTER | TBZ (148-79-8) | Antimold |
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MAC-2370FT-E | FILTER | Silver zinc zeolite (130328-20-0) | Antibacterial |
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WHEN YOU THINK THAT TROUBLE HAS OCCURRED
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 fluorescent lamp (inverter-type fluorescent lamp, etc.) is used.
- Operation of the air conditioner interferes with radio or TV reception. An amplifier may be required for the affected device.
- When an abnormal sound is heard.
- When any refrigerant leakage is found.
SPECIFICATIONS

Guaranteed operating range
| Indoor | Outdoor | |
| Cooling | Upper limit | 32°C DB 23°C WB | 46°C DB |
Lower limit | 21°C DB 15°C WB | -10°C DB — | |
| Heating | Upper limit | 27°C DB — | 24°C DB |
Lower limit | 20°C DB — | -10°C DB |
DB: Dry Bulb
WB: Wet Bulb
Note:
Rating condition
Cooling — Indoor: 27°C DB, 19°C WB
Outdoor: 35°C DB
Heating — Indoor: 20°C DB
Outdoor: 7°C DB, 6°C WB
Name of Importer:
Mitsubishi Electric Europe B.V.
Capronilaan 46, 1119 NS, Schiphol Rijk, The Netherlands
French Branch
25, Boulevard des Bouvets, 92741 Nanterre Cedex, France
German Branch
Mitsubishi-Electric-Platz 1, 40882 Ratingen, Germany
Belgian Branch
Autobaan 2, 8210 Loppem, Belgium
Irish Branch
Westgate Business Park, Ballymount, Dublin 24, Ireland
Italian Branch
Centro Direzionale Colleoni, Palazzo Sirio-Ingresso 1
Viale Colleoni 7, 20864 Agrate Brianza (MB), Italy
Norwegian Branch
Gneisveien 2D, 1914 Ytre Enebakk, Norway
Portuguese Branch
Avda. do Forte, 10, 2799-514, Carnaxide, Lisbon, Portugal
Spanish Branch
Carretera de Rubi 76-80 – Apdo. 420 08173 Sant Cugat del Valles (Barcelona), Spain
Scandinavian Branch
Hammarbacken 14, P.O. Box 750 SE-19127, Sollentuna, Sweden
UK Branch
Travellers Lane, Hatfield, Herts., AL10 8XB, England, U.K.
Polish Branch
Krakowska 50, PL-32-083 Balice, Poland
MITSUBISHI ELECTRIC TURKEY ELEKTRİK ÜRÜNLERI A.Ş
Şerifali Mah. Kale Sok. No:41 34775 Ümraniye, İstanbul/Turkey
EC DECLARATION OF CONFORMITY
MITSUBISHI ELECTRIC AIR CONDITIONING SYSTEMS MANUFACTURING TURKEY JOINT STOCK COMPANY.
Manisa OSB 4.Kisim Kecilikoyosb Mah.
Ahmet Nazif Zorlu Bulvari No:19 Yunusemre – Manisa.
hereby declares under its sole responsibility that the air conditioners and heat pumps described below for use in residential, commercial and light-industrial environments:
MITSUBISHI ELECTRIC, MSZ-HR25VF/MUZ-HR25VF
MSZ-HR35VF/MUZ-HR35VF
MSZ-HR42VF/MUZ-HR42VF
MSZ-HR50VF/MUZ-HR50VF
Note: Its serial number is on the nameplate of the product.
Directives
2014/35/EU: Low Voltage Directive
2006/42/EC: Machinery Directive
2014/30/EU: Electromagnetic Compatibility Directive
2009/125/EC: Energy-related Products Directive and Regulation (EU) No 206/2012
2011/65/EU: RoHS
Issued: 1 September, 2018 Selin Dömekeli
TURKEY Quality Assurance Department
MITSUBISHI ELECTRIC CORPORATION
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
JG79Y423L01
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Install the front panel by following the removal procedure in reverse. Close the front panel securely and press the positions indicated by the arrows.














