Review of the Mitsubishi Electric MSZ-DM25VA split system: on the way to perfection

Tired of sweating in your apartment or office in the summer or freezing in the off-season instead of enjoying a comfortable climate? So, it's time to buy an air conditioner. But how not to get confused in the variety of offers from different brands?

We advise you to pay attention to such a stylish unit as the Mitsubishi Electric MSZ DM25VA split system - a product of a famous Japanese manufacturer, which is the standard of manufacturability and quality.

We have prepared a detailed overview of the technical parameters and functionality of the unit, and also provided real user reviews and highlighted the pros and cons of the air conditioner. Comparison with your closest competitors will help you decide on the optimal split system model.

Basic parameters of a split system

The model under review belongs to the classic series inverter air conditioners from this corporation. Refers to budget wall-mounted splits.This series is assembled at production facilities in Thailand, and this is a guarantee of quality.

Design features of the device

The device has the most necessary, no-frills functionality and has successfully proven itself to operate effectively over a wide temperature range. The air conditioner does a good job of maintaining a comfortable climate over an area of ​​25 m², which is quite acceptable for a 1-2-room apartment.

As a standard, this split system is equipped with an internal module and an external unit.

The internal wall unit is made of high-quality bright white glossy plastic, has a strict design, looks stylish and laconic in any room

Design feature indoor unit is the protection of vertical blinds with a metal mesh. This makes the model safer to use, eliminating any contact with the rotating impeller.

The device has the ability to lightly press the latches to remove the entire front panel, which is very convenient when servicing the air conditioner.

A distinctive feature of the outdoor module is the material from which it is made. This is sheet steel with a special anti-corrosion coating.

Functionality of the equipment

The split system compressor is powered using an inverter circuit, ensuring its continuous operation with constant power.

The use of this technology achieves:

• increase in service life by 30-50% due to operation in optimal mode;
• reducing the time required to achieve specified climatic indicators;
• ability to work in a wider environmental spectrum;
• significant, up to 30%, reduction electricity consumption, in comparison with conventional models.

Inverter circuit. The use of this technology brings the energy efficiency coefficient of the product to a fairly high level: in cooling mode, EER = 2500 W/710 W = 3.5; in heating mode COP = 3150 W/750 W = 4.2. These indicators correspond to class A+ energy efficiency.

Another significant feature of the device, implemented mainly due to inverter technology, is very quiet operation, which makes the air conditioner a leader in this indicator in the business segment of climate control equipment.

Almost inaudible operation, comparable to a human whisper, makes it possible to install this unit in bedrooms and children's rooms

It is worth noting that in terms of noise level (22 dB) the device corresponds to the premium segment of air conditioners.

EconoCool. The mode helps reduce energy consumption costs. The developer of this unique function was Mitsubishi Electric Corporation.

This mode is implemented due to the operation of the blinds according to a “smart” algorithm - in the vertical swing regulation, which allows the user not to notice a slight warming in the room - by 2°C.

As studies conducted by the company’s specialists have shown, it is precisely this insignificant increase in air temperature that allows energy savings of almost 20%. This function is especially effective when the air conditioner operates for a long time.

The device provides high-quality air filtration, blocking dust and other microimpurities in the indoor air that are unsafe for health. Structurally, the device filter consists of two sections.

The air flow is cleaned using two included bactericidal filter inserts with silver ions, which reduce the concentration of not only dust, but bacteria and allergens

The useful possibility of reusable use of the filter provides certain savings. To do this, you just need to wash it sometimes in warm water. But it is important to remember that the manufacturer guarantees the effective operation of the filter element only if it is replaced annually.

Autostart again. Another functional feature of the reviewed model is that in the event of a power failure, the device returns to operation after the power supply is restored according to the previously specified settings.

Please note that this option is configured in the device by default, and to disable it you need to change the air conditioner settings. But this should already be done by service specialists.

The split system uses a unique engine manufacturing technology. The fans of both modules are driven by non-contact DC motors, making them particularly highly efficient.

The rotor of the contactless motor of the device is equipped with an external permanent magnet. This technology allows you to increase the torque of engines at low speeds, which reduces the rotational speeds of fans and reduces noise from them

Poki Poki Core. The corporation's motor design technique, in which the stator winding with a special pole structure is laid on the core in an unfolded state, which significantly increases the efficiency and operating efficiency of the motor.

For the manufacture of heat exchangers, tubes with finned internal knurling are used.This technology allows you to increase the intensity of heat exchange, which in turn, again, increases energy efficiency.

Complete closing of the horizontal damper after turning off the device - an interesting feature of the model. All air distribution elements and air supply openings are hidden when the air conditioner is not operating.

This function not only gives the “passive” product an attractive and neat appearance on the wall, but also reduces the likelihood of dust getting on the internal components.

Nuances of equipment operation

The device is controlled remotely from the remote control. The batteries last for almost a year of operation. The remote control will let you know when the charge level is critically low by turning on the indicator. After the signal is given, the device will provide another week to replace the batteries with new ones, and only then it will stop working.

The control panel looks somewhat rustic in appearance, but, nevertheless, the available classic set of buttons ensures convenient use of the device.

For proper operation of the air conditioner, it is recommended to reset the settings to factory settings when replacing batteries. This is done by carefully pressing the RESET button on the remote control with a pointed object (a paper clip will do).

The air conditioner has the ability to use the function of a specified time for turning on and stopping the device in a 12-hour range. The discreteness of setting the timer is 1 hour.

If there is no need to use the air conditioner for more than a week, it is recommended to dry its internal components. This is done in order to eliminate favorable conditions of a humid environment for harmful microelements.

If the remote control is missing or faulty, you can start emergency operation of the air conditioner by controlling it directly from the indoor unit. To do this, use the E.O.SW button, pressing which alternately switches the emergency cooling and heating options.

For half an hour after turning on one of the modes, the temperature is not regulated and the fan runs at high speeds.

Operation of the device in this mode is also used for a test run of the product after its installation and for carrying out purge procedures and checking the tightness of the system.

To dry the indoor unit, you must manually set the highest temperature in COOL mode and leave the device operating for 4 hours

Undoubted advantages and some disadvantages

A brief review of the model makes it possible to weigh its positive qualities and disadvantages.

The well-deserved strengths of the model include:

• good productivity and energy savings;
• almost inaudible operation of the indoor unit;
• ease of operation;
• sufficient inter-block communication distance is 20 m.

A big plus is the price that is quite adequate for a high-quality branded product - within the budget segment.

Another positive indicator is the manufacturer’s confidence in the quality of its products, which is confirmed by a 3-year free warranty for a split system purchased from an official dealer.

Additionally, the manufacturer offers a unique extended warranty for a period of 5 years upon signing a service agreement.

Some of the inherent disadvantages of an air conditioner include:

• lack of backlight and small size of the remote control screen;
• more complex than other air conditioners, even from the same manufacturer, the procedure for disassembling the indoor unit for split service.

As a conclusion on the pros and cons of the model, it should be noted that if the consumer does not have special requirements for the advanced functions and design of the air conditioner, then these disadvantages cannot have a significant impact on the decision to choose this particular device.

Customer reviews about the product

Many of the above advantages and disadvantages of the model find their place in customer reviews. But the main thing in the reviews is that the model MSZ-DM25VA, which is relatively new (since 2016) on the climate control market, has become a real discovery for most users.

Here are some of the positive responses:

• simplicity and rigor of the design of the indoor unit;
• ergonomic and uncomplicated operation of the remote control;
• The manufacturer’s efforts to make a model, as they say, for people are noticeable, and as confirmation of this is such a seemingly trifle as the included packaging with a ribbon for tying the thermal insulation of the indoor unit.

This indicates that even in the smallest details the quality of the brand model is felt.

Advanced users, as a plus, note the presence in the control board of the device of the technical ability to connect a Wi-Fi module to the device for remote operation via a mobile application

To be fair, it should also be noted that there is a negative review of the quality of the device. Thus, the user complains that during the warranty period a defect appeared in the form of extraneous noise, presumably arising from poor alignment of the fan shaft.

And, in continuation of one trouble, another is the red tape of the seller and the service department with the fulfillment of warranty obligations.

Comparison with competitors' models

Everything can be learned by comparison, so below is a brief overview of models from other manufacturers, but all of them are representatives of inverter-type units, with approximately the same service area (25-30 m²) and from the same price segment.

Model No. 1 - Daikin FTXB25C/RXB25C

This device is also from a Japanese manufacturer, with European assembly in the Czech Republic. The functionality of the model is characterized by a set of the most basic options. It should also be noted that there is a decent balance between the cost of the product and its quality.

Main technical indicators:

• performance cooling/heating - 2500/2800 W;
• power consumption during cooling/heating - 770/690 W;
• energy efficiency ratio in cooling/heating mode - 3.2/4.1 (class A);
• noise indicator internal module - 21 dB;
• length of communications — 15 m;
• temperature range in cooling mode - from -10°С to +46°С.

The disadvantages include the non-illuminated control panel, the limited length of communications between the indoor and outdoor modules of 15 m, as well as the need to connect the power supply of the indoor unit to the outdoor module, which means an extra hole in the wall.

A distinctive feature of the device is the very low noise declared by the manufacturer, and actually noted by customers - 21 dB, so the product will be ideal for use in bedrooms.

Model No. 2 - Toshiba RAS-10N3KVR-E/RAS-10N3AVR-E

This is another model of the famous Japanese brand and, like the hero of our review, is assembled in Thailand. The device has a classic appearance of the internal unit.

Main technical indicators:

• performance cooling/heating - 2500/3200 W;
• power consumption during cooling/heating - 600/750 W;
• energy efficiency ratio in cooling/heating mode - 4.1/4.3 (class A);
• noise indicator internal module - 26 dB;
• length of communications — 20 m;
• temperature range in cooling mode - from -10°С to +46°С.

With class A energy efficiency declared by the manufacturer, the coefficient of this indicator is slightly higher than that of other presented samples. The same can be said about the noise level: the value of 26 dB is a very good figure, but higher than that of competitors.

The model is equipped with innovative filters - plasma and deodorizing, and an anion generator. For this reason, this device can be safely used by people with respiratory problems.

Model No. 3 - Hisense AS-10UR4SVPSC5

This model is declared by the Chinese manufacturer as a representative of the premium series. But in terms of basic parameters, the device is not very different from previously described products.

Main technical indicators:

• performance cooling/heating - 2800/2800 W;
• power consumption during cooling/heating - 800/740 W;
• energy efficiency ratio in cooling/heating mode - 3.5/3.7 (class A);
• noise indicator internal module - 22 dB;
• length of communications — 15 m;
• temperature range in cooling mode - from -15°С to +43°С.

The model is created on the basis of DC-inverter super technology, thanks to which the manufacturer, among other advantages of the inverter, guarantees maintaining the temperature in the room with unique accuracy - less than 1 ° C and maximum energy saving.

Savings compared to conventional air conditioners are up to 40%, and power consumption in standby mode is less than 1 W.

The uniqueness of the model lies in the ultra-thin body of the internal module, only 11.3 cm deep. The two-layer plastic of the front panel, with a transparent top layer, gives the device volume and airiness.

Consumer dissatisfaction, according to feedback, comes down to such points as somewhat noisy operation of the external unit, rapid energy consumption of the remote control batteries.

Conclusions and best offers on the market

All models subject to review deserve attention. Each of them has its pros and, of course, cons, and user ratings are often subjective.

But, if there is no predilection for a particular brand, then the reference air conditioner MSZ DM25VA looks preferable against the background of its three competitors, primarily due to innovation and quality.

Do you have experience using the Mitsubishi Electric MSZ DM25VA air conditioner or any model from the list of competitors? Please share with readers your impressions of the operation of climate control equipment. Leave feedback, comments and ask questions - the contact form is below.