Mitsubishi Electronics MSZ09UN, MSZ12UN operating instructions Check the following

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BEFORE CONTACTING THE SERVICE REPRE- SENTATIVE, CHECK THE FOLLOWING AGAIN

The air conditioner cannot be operated. d

Check the following.

1Ison?the breaker turned

2Isn’t the fuse blown?

3Isn’t the ON-timer set?

The room cannot be cooled or heated sufficiently.

d

Check the following.

1Is the temperature set- ting correct?

2Isn’t the filter dirty?

3Isn’t the outlet of the out- door unit blocked?

Display of the remote con- troller does not appear (1, 2). The remote control sig- nal cannot be received if the remote controller is not operated near the air conditioner (1).

d

Check the following.

1Aren’t the batteries ex- hausted?

2Is the polarity (+, -) of the batteries correct?

When a power failure occurs.

d

Check the following after the restoration of the power.

Even if the above items are checked, when the air conditioner does not recover from the trouble, stop using the air conditioner and consult your dealer.

If the air conditioner had operated be- fore the power failure, as these mod- els are equipped with an auto restart function, the air conditioner should start operating again. (Refer to De- scription of “AUTO RESTART FUNC- TION” on page 7.)

1Does the air conditioner start operating again?

In the following cases, stop operation and consult your dealer.

■The remote control signal may not be received in a room where an electronic ON/OFF type fluo- rescent lamp (inverter-type fluo- rescent lamp, etc.) is used.

■In the region where the electric wave is weak, when the air con- ditioner is operated, noise may be generated in radio reception.

■When thunder is heard, stop op- eration and turn off the breaker. Otherwise, the electrical parts may be damaged.

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Contents Operating Instructions Contents Safety Precautions Customer should not install this unit Do not turn the breaker off/on during operationRepairs or relocation should not be done by the customer This could damage your healthDo not operate switches with wet hands Do not clean the air con- ditioner with waterVentilate well in using the unit with a stove, etc Do not use an insecticide or flammable sprayDo not step or put any- thing on the indoor/out- door unit Replace the 2 batteries with new ones of same typeDo not install the unit where flammable gas could leak Consult your dealer for installation of the air conditionerGround the unit Name of Each Part Indoor unitOutdoor unit Remote controller Mode MIN Open the front lidPreparation Before Opera Auto restart functionBreaker for the air conditioner Press the Emergency OPERA- Tion switch AtionDescription of I FEEL... mode FEEL... Auto OperationTo start operation Press the button.ON/OFF To stop operation Press the buttonDetails of display on the indoor unit Description of Auto Restart FunctionTo select the COOL, DRY or Heat mode Manual Operation COOL, DTo stop operation Details of the display on the indoor unit are explained onRY, Heat Cool For effective coolingDRY The humidity at which people feel comfortable Cooling operation, when the air conditioner is op AIR Flow Velocity and DireTo change the AIR Flow velocity, press the FAN button Recommended horizontal vane rangeCtion Adjustment Auto air flow direction control operationHow to set the on timer Set the time of the timer using the HR. and MIN. buttonsTo release the OFF timer Press Stop button Press the Start button during operationWhen it is not going to be used for a long time When the air conditioner is to be used againClean the air filter and install it in the in- door unit Turn off the breakerMaintenance Before starting maintenanceCleaning the indoor unit Clean the unit using a soft dry clothCleaning the air filter about once every 2 weeks Cleaning the deodorizing filter about once every 2 weeksRemove the air filter Deodorizing filter replacement about once a year Air cleaning filter replacement about once every 4 monthsRemove the air cleaning filter White bel- lows type Remove the deodorizing filter Gray sponge typeCheck the following Following cases, stop operation and consult your dealerWhen YOU Think That Troub Question Answer not a malfunctionBLE has Occurred INSTALLATION, Relocation a Installation placeElectrical work Inspection and maintenance ND InspectionOperating sound considerations RelocationPage Specifications are subject to change without notice

MSZ12UN, MSZ09UN specifications

Mitsubishi Electronics has established itself as a leader in innovative climate control technology, and the MSZ09UN and MSZ12UN air conditioning units exemplify the company's commitment to energy efficiency, advanced technology, and user comfort. Both models are part of the MULTI-ZONE series, designed for residential and commercial spaces seeking an optimal balance between performance and energy savings.

The MSZ09UN, with a cooling capacity of 9,000 BTU, and the MSZ12UN, with a cooling capacity of 12,000 BTU, are ideal for small to medium-sized rooms. Their sleek and modern design allows them to blend seamlessly into any interior, while their quiet operation ensures that occupants can enjoy a comfortable environment without disruptive noise.

One of the standout features of both models is Mitsubishi's advanced inverter technology. This technology allows the units to automatically adjust the compressor's speed to maintain the desired temperature more efficiently. As a result, both units operate with lower energy consumption, which is especially appealing to environmentally conscious consumers. The inverter system not only enhances energy efficiency but also provides faster cooling and heating, ensuring that the desired temperature is reached quickly.

Both the MSZ09UN and MSZ12UN come equipped with a high-efficiency filter that captures dust and allergens, contributing to improved indoor air quality. Some models also feature optional plasma air purification technology, which further enhances air cleanliness by effectively eliminating bacteria and virus particles.

In terms of user convenience, these models offer easy-to-use remote controls, allowing users to adjust settings from a distance. They also support various operational modes, including cooling, heating, dehumidification, and fan-only modes, making them versatile solutions for year-round climate control.

Another notable characteristic is their compatibility with Mitsubishi's Kumo Cloud technology, enabling users to control their units remotely via smartphone apps. This feature provides enhanced convenience, allowing users to monitor and adjust their home's climate from virtually anywhere.

Overall, the Mitsubishi MSZ09UN and MSZ12UN air conditioners represent a perfect blend of technology, efficiency, and user-friendly features, making them excellent choices for anyone seeking reliable climate control solutions for their living or working spaces.
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