Author Alexey Dluzhevsky

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In this article, we look at why Daikin, the leading air conditioner manufacturer, is converting its equipment to a new refrigerant, and what benefits the end user will get from using it. As an example, let’s compare the characteristics and functions of 2 series of household wall-mounted air conditioners ATXS-K, which uses the popular refrigerant R-410A, and ATXM-M, which uses R-32.

Daikin ATXM air conditioners with new generation R-32 refrigerant

What is R-32?

The chemical name of R-32 is difluoromethane. It has been used for many years as a component of the R-410A refrigerant, which is a mixture of 50% R-32 and 50% R-125.

Daikin was the first company to find that using pure R-32 instead of a blend offers a number of benefits. Many other industry players have already followed suit.

This refrigerant has a minimal environmental impact. Like its predecessor, it does not destroy the ozone layer; The Ozone Depletion Potential (ODP) is 0. In addition, it has higher energy efficiency and lower global warming potential (GWP), which allows the use of a refrigerant charge with a lower CO2 equivalent.

What is GWP?

Global Warming Potential (GWP) is a measure of the potential global warming impact of a refrigerant if released into the atmosphere.

What is ODP?

The ozone depletion potential (ODP) is a numerical measure of the harmful effect of a chemical on the stratospheric ozone layer.

comparison of performance indicators

The CO2 equivalent refrigerant charge for a 3.5 kW model will be 78% lower than the same model charged with R-410A. This is because R-32 has a GWP that is only 1/3 of the GWP of R-410A, and the refrigerant volume is 31% less.

In simple terms, a system of the same performance now requires significantly less refrigerant, which, firstly, reduces the risk of environmental impact in the event of a gas leak, and secondly, reduces the cost of refueling the system.


R-32 perfectly complies with the new EU regulations on fluorinated greenhouse gases.

Comparison of split systems of the ATXM-M and ATXS-K series

For example, consider models with a capacity of 3.5 kW.

What changed:

1. Appearance. The design of the indoor unit has changed, the new unit looks more spectacular. Its width in model 35 has decreased from 90 to 81 cm, and its weight has decreased from 11 to 10 kg.

ATXS indoor unit

Indoor unit Daikin ATXS35K

ATCM indoor unit

Indoor unit Daikin ATXM35M

2. The outdoor unit has not changed in appearance, but has become 2 kg lighter.

3. Significantly improved energy efficiency indicators:

  • The energy efficiency class has increased from A++ to A+++ in cooling and heating mode.
  • Nominal annual electricity consumption decreased by more than 13% from 473 to 415 kWh. Actual savings can reach 30% per season.

4. The titanium apatite photocatalytic filter has been replaced by Daikin’s high-quality Flash Streamer air purification system, which eliminates dust, pollution, odors and allergens.

What hasn’t changed:

As before, this series remains one of the quietest in the class: the noise level in the “quiet” mode is only 19 dB.

Both series are equipped 2nd zone motion sensor: the air is directed away from the people present in the room. If there is no one in the room, the system will automatically switch to energy-saving mode.

The function of even distribution of the air flow throughout the space (3D) to circulate the flow of warm and cold air even in the remote corners of the room thanks to vertical and horizontal autoswing.

For both models, the “Online Control” option is available: control the indoor unit from anywhere using a mobile application, over a local network or via the Internet.

Also, the modes and functions remained unchanged:

remote controller

Mode of maintaining a comfortable temperature;

High performance mode;

Dehumidification mode;

Weekly timer;

24 hour timer;

Automatic restart;


All conditioners of both series are completed with ergonomic remote controls. Compatible with wired wall units and central climate control panels.


Air conditioners of both series are flagships in the class of premium home air conditioners and have almost identical characteristics. With the same retail price of models identical in performance, the advantages of choosing a line based on the new freon are obvious, and a complete rejection of the use of R-410A is only a matter of time.

If environmental protection is your concern, choose R-32 refrigerant models today.

In addition, the FTXM-M series models have the following advantages:

  • spectacular design;
  • economy of use — up to 30% energy savings;
  • Daikin’s new Flash Streamer air purification technology.


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