This year the majority of the world’s leading manufacturers to bring to market for new air conditioners , eco friendly , refrigerant R32. So , Daikin this spring released refrigerant R32 version of its top-end air conditioner – Ururu Sarara ( air conditioner Daikin Ururu Sarara R32 is already sold in Europe and managed to win the prestigious Red Dot 2013 ) . The world’s largest manufacturer of climatic equipment company Gree, began selling household split systems not only refrigerant R32, but also not afraid to market a version of the refrigerant R290 ( propane) . Conditioners on their R32 released of Fujitsu General, Hitachi and Panasonic ( sold only in the Japanese market ) . Even the company of “second tier” like Midea and Haier, have kept up with the leaders and summer in China began test delivery systems for R32.

What are the advantages of refrigerant R32? First of all, in its ecology – its impact on the ozone layer and global warming is set to almost zero . The new refrigerant is fully consistent with very strict standards which will be applied in the European Union since 2018. Hence, a natural desire to advance leaders break in new technologies is still at a fairly expensive models and 2018 massively introduce their models budget price range. Besides, the new refrigerant a huge potential for creating high air conditioners. Below in Table 1 , we present the energy efficiency of air conditioners on the coefficients R32 ( comparison models 2.5 kW ) .


1. Data are given for air conditioners 2.5 kW .
2 . On the new European Energy Efficiency Ratio , read the article – ” Seasonal energy efficiency. SEER / SCOP – what is it? ”
The table shows that the energy efficiency of air conditioning refrigerant R32 exceeds the top models on the refrigerant R410a respective manufacturer. We note one important fact : the latent heat of evaporation ( condensation) on the saturation line at the boiling temperature of 360-390 kJ / kg, which allows you to refill air conditioning fewer refrigerant (eg , compared with R410a is more than three times) , to create more compact and quiet air conditioning.

On the background of the above listed became not clear why such a technology leader in the industry, the company Mitsubishi Electric, has not yet been introduced HVAC market even test model refrigerant R32. Representatives of the company they had not done any statements and presentations upcoming models . As always, the company entered Mitsubishi Electric , as befits the world’s climate grandee industry – slowly, quietly and loud statements prepared a new model of refrigerant R32 and presentation held just a week before the official start of sales in Japan .


At first glance, we see just another one of the variations on the top model conditioner Kirigamine: double blind as a separate model MSZ-FH, and hull shape and location of the sensor “Smart Eye ” in a niche in the center hull as the previous model MSZ-FD . In general, air conditioner looks very similar to a long time to sell in Japan model MSZ-ZW. It seems that the manufacturer has simply adapted the previous model for the new refrigerant. But this is only superficial resemblance . All the stuffing , both internal and external specialists units of Mitsubishi Electric created anew. Changes affected not only the refrigerant circuit. Have been completely redesigned and upgraded : climate control system in the room «I SEE», air conditioning control system , exhaust system blinds and air cleaning system «Plasma Quad». Changes so much that for the first time talk only about the main characteristics of the new model ( in the course of work on the new model specialists Mitsubishi Electric was obtained 118 patents for invention ) .

Energy Efficiency

We have long been accustomed , that the most highly efficient air conditioners on the market are air-conditioned Deluxe Kirigamine series from Mitsubishi Electric. However, the new features are truly impressive power consumption (Table 2) not only in comparison with the latest model Mitsubishi Electric MSZ-FH VE, but also in comparison with air conditioning refrigerant R32 from other manufacturers.
To achieve this efficiency by Mitsubishi Electric has developed new compressors . Outdoor unit heat exchanger is divided into three sections , in which the refrigerant flows through the individual expansion valves . Such a decision had not been used for household air conditioners, but only in the outer blocks multizone (VRF) systems.

It is noteworthy that during the presentation of the first in the industry have been shown and split-system power 7.1 kW refrigerant R32 ( Figure 2). Their sales start is scheduled for early next year. So for the first time in the history of the company Mitsubishi Electric will be put into production conditioners Deluxe Class capacity exceeding 5 kW. According to representatives of the manufacturer is made possible through the use of refrigerant R32: the fact that the company Mitsubishi Electric has very strict requirements for the top-end air conditioners in terms of noise .

Ultra-low noise

In the new air conditioners specialists from Mitsubishi Electric achieved a record low noise operation of the indoor unit. In models MSZ-ZX25/35VU noise level is only 18 dB, MSZ-ZX50VU – 19dB in MSZ-ZX71VU – 22dB . The previous record of 19 dB is also owned Mitsubishi Electric – it was made in the models MSZ-GE.

In the data presented is most striking in the noise model MSZ-ZX71VU – 22 dB. The lowest noise level for air conditioning capacity of 7.1 kW , which until then could be found on the market was 28 dB.

Due to what has been achieved this level of noise ? At a press conference dedicated to the release model MSZ-ZX representatives of Mitsubishi Electric said verbatim: ” The development of new air conditioning refrigerant R32 resulted in long-term studies of the company in the field of heat exchangers for air conditioners using microchannel technology. And these are the heat exchangers we set in MSZ-ZX VU. For a new air conditioner , we produce four or five-row heat exchangers made by the new technology . Such heat exchangers require air flow in all operating modes by 35-45 % compared to traditionally produced models . Due to this, achieved record low noise levels , reduce the diameter of the indoor fan and fit into one compact housing the entire range up to models with a cooling capacity of 7.1 kW . ”


Figure 3. Sectional view of the indoor unit Mitsubishi Electric MSZ-ZX VU
(left a new air conditioner , right the previous model ) .

The next generation of intelligent sensors «I-see sensor»

At first glance, a thermal «I-see sensor» nothing ordinary happened. Sensor again gained its previous form (as in the MSZ-FD) and location in the center of the front panel. On this similarity ends . New thermal «I-see sensor Zen» became a 12- segment . Its resolution is increased to 3 mm. The most important change is that the new system not only identifies the location of a person , but also determines :

as a man dressed and shod ;
man is sitting or standing ;
degree heat release from human ( the system determines a person is resting , working or sleeping );
healthy man or his colds with fever ..

Next on the program laid conditioner selects one of the ” behaviors Zen» – how to form individual microclimate entire premises and individual climate for a particular person. Also 48 nested programs ” behaviors ” the user is given the opportunity to air conditioning individually create their ” behaviors ” ( for this he will need to install free software on your computer or tablet and pour over Wi-Fi channel a new program in air conditioning , Wi-Fi channel in standard already basic configuration is built into the new air conditioner MSZ-ZX VU). Besides air conditioning alone can connect to Wi-Fi zone and go online and download from the site new Mitsubishi Electric ” behaviors Zen» and update the old

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