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What is R-32 The Next Generation Refrigerant!


What’s R-32?
R-32 is a next generation refrigerant that efficiently carries heat and has lower environmental impact.



Refrigerant is a medium for conveying heat.

Air conditioners transfer heat while circulating refrigerant between the indoor and outdoor units.

Although there are various types of refrigerants, R-32 is a new refrigerant currently receiving the most interest.
Because R-32 efficiently conveys heat, it can reduce electricity consumption up to approximately 10% compared to that of air conditioners using refrigerant R-22. Furthermore, compared to the refrigerants widely used today such as R-22 and R-410A, R-32 has a global warming potential (GWP) that is one-third lower and is remarkable for its low environmental impact.

  • *Source:
    Values for 100 year global warming potential (GWP) from IPCC Fourth Assessment Report. Comparative 100 year GWP: HFC410A, 2,090; HFC32, 675.

As the only manufacturer that develops and manufactures both air conditioners and refrigerants, Daikin launched the world’s first residential-use air conditioner
using R-32.

Refrigerant Trends

Various refrigerants have been used in air conditioners until now. Regulations have increasingly become stricter from greater consideration for the global environment because of the Montreal Protocol in 1987 and the Kyoto Protocol in 1997, resulting in a shift to refrigerants with even lower environmental impact.

Although the mainstream refrigerant R-410A has an ozone depletion potential (ODP) of 0, its global warming potential (GWP) still remains an issue.

While R-32 also has an ozone depletion potential of 0, the refrigerant has only approximately 1/3 of the GWP of R-410A. Consequently, investigation of this promising next generation refrigerant has increased.

However, because R-32 had been an extremely difficult refrigerant to handle, its use was not practical until now. Daikin became the world’s first company to succeed in applying R-32 to air conditioners by leveraging its expertise as the only manufacturer that develops and manufactures both air conditioners and refrigerants.

Currently, R-410A is the refrigerant most commonly used in developed countries. However, if all R-410A were converted to R-32, the impact to global warming from HFCs in 2030 would be reduced by the CO2equivalent of approximately 800 million tons (19%) compared to the continued use of R-410A.*2

  • *1)
    Values for 100 year global warming potential (GWP) from IPCC Fourth Assessment Report. Comparative 100 year GWP: HFC410A, 2,090; HFC32, 675.
  • *2)
    Daikin calculations based on thesis, Velders et al, PNAS (2009), World Meteorological Organization (WMO) library

Cooperation with governments and international organizations has expanded technical assistance for emerging countries to each region and aims for widespread use of the refrigerant R-32 throughout the world.

Aiming for widespread use throughout the world, Daikin not only manufactures and sells R-32, but it also provides technical assistance in emerging countries in cooperation with governments and international organizations.
In India, verification tests were conducted for inverter type R-32 air conditioners. In executing training for the proper handling of R-32, the technical level also improved. Consequently, Daikin has received requests from various governments, including the Thai and Malaysian governments, and the company is beginning to target local manufacturers for technical assistance for conversion to R-32.
Such efforts as those mentioned above have earned Daikin high acclaim and a variety of awards.











3、使用R410A 时,系统的总传热特性比R22大,所以可改善系统效率,并且减少热交换器的热传面积。


1、R410A是由HFC-32(R32)和HFC-125以重量比各50﹪混合而成的冷媒,为近共沸混合冷媒。而R22 则为单一物质冷媒。

2、R410A的运转压力比R22 高约50~70%。


4、因R32 分子具有高极性,故R410A比R22更具有溶解性。残渣漂浮于R410A时,可以顺利在系统内循环。

通过以上介绍,相信大家都知道使用R410A要比使用R22为制冷剂的空调优越很多,所以建议广大消费者购买使用R410A为制冷剂的空调,不仅可以享受更舒适的空调环境,还不破坏环境,造福子孙后代。目前,国际知名品牌的空调大都使用R410A为制冷剂,如DAIKIN P&Q系列、CARRIER和YORK中央空调、PANASONIC、三星中央空调都使用R410A新冷媒为制冷剂,在未来,相信些使用R410A制冷剂的空调市场前景会越来越广阔