R-32 Innovation

R-32 is a next-generation, low-GWP refrigerant that efficiently carries heat in air conditioning systems. Daikin was the first to introduce air-conditioning and heat pump technology using R-32, starting in Japan in November 2012. Because of its lower GWP as well as energy efficiency and cost-effectiveness as compared to conventional refrigerants, R-32 has been safely deployed in over 140 million units globally* (Daikin's estimation).

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The Evolution of Refrigerants

The world has become more aware of the environmental impacts of refrigerants used in air conditioning, household appliances, and other applications. And that awareness has driven the industry to develop new refrigerants. Over the years, the industry has offered new technologies and solutions that are less impactful on the environment. Take a look of the evolution of refrigerants by mouseover the years below!

1928

Thomas Midgley, Albert Henne, and Robert McNary create chlorofluorocarbon (CFC) refrigerants

1928

1974

In a paper in Nature, Mario Molina and Sherwood Rowland showed the negative impact of CFCs on the ozone

1974

1987

The Montreal Protocol on Substances that Deplete the Ozone Layer sets the stage for phasing out refrigerants such as CFCs and HCFCs, is signed

1987

1990

The Clean Air Act, which allows the U.S. to regulate ozone depleting substances, was passed

1990

2010

The U.S. EPA begins to phase down the production and import of new equipment using HCFC R-22, which leads to manufacturers embracing HFC R-410A

2010

2012

Daikin was the first in the world to introduce air conditioning and heat pump technology using R-32.

2012

2015

The U.S. EPA approved the use of R-32 for room air conditioning units.

2015

2016

The Kigali Amendment to the Montreal Protocol, which proposed the phase down of HFCs with high global warming potential, is signed

2016

2020

Aligned with the Kigali Amendment, the AIM Act was signed into law, granting the EPA the authority to phase down HFCs in the U.S.

2020

2021

The U.S. EPA will begin rulemaking process to implement the AIM Act

2021

2024

In California, CARB is aiming to limit the GWP of refrigerants used in new chillers starting in 2024

2024

2025

In California, CARB is aiming to limit the GWP of refrigerants used in new stationary air conditioners starting in 2025

2025
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What Makes R-32 Superior?

Up to 12% more efficient

R-32 systems are up to 12% more efficient than similar R-410A systems.

Better than R-410A for the planet

R-32 refrigerant has a significantly lower total life cycle refrigerant impact on the environment compared to R-410A.

Globally accepted

Over 140 million R-32 units have been safely deployed worldwide.

Pure, not blended

R-32 is a single-component refrigerant making it easier to clean, reuse, recover and reclaim than blends.

Light weight units

R-32 refrigerant's efficiency and capacity can allow for light weight units in certain applications.

Non-proprietary

R-32 is readily available from multiple suppliers.

Easy to work with

R-32 refrigerant is easier to clean, reuse, recover and reclaim than non-azeotropic blends.

There's more than one good reason to choose R-32. In fact, there are 32 of them.

R-32 is endorsed by Daikin, Goodman, and Amana.

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What is Refrigerant and What is the difference?

Refrigerant is a medium for conveying heat. Air conditioners transfer heat while circulating refrigerant between the indoor and outdoor units. 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.

Environmental Impact of Air Conditioning Refrigerants

R-12 (CFC)

1.0

10,900

R-22 (HCFC)

0.055

1,810

R-410 (HFC)

0

2,090

R-32 (HFC)

0

675

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

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Already safely used in over
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After extensive research and consideration, Daikin, Goodman, and Amana brands have endorsed R-32. In evaluating R-32, we took a holistic approach that included safety, energy efficiency, and cost-effectiveness for all of our product users. Importantly, R-32 is not new to the HVAC industry. It’s become the de facto global standard to replace R-410A.

Nathan Walker Senior Vice President, Goodman Manufacturing

Daikin's Policy on the Environmental Impact of the Refrigerant

Daikin will contribute to mitigating the environmental impact of the refrigerant with comprehensive approach throughout refrigerant and equipment lifecycle.

The front page of Daikin's policy on regrigerants