There's more than one good reason to choose R-32.

Reason 1

Up to 12% more efficient than 410A.

Test data from Daikin's labs of inverter-driven compressors for rooftop units and water-cooled chillers found that full-load and partial-load efficiency rating metrics can be improved by up to 12% in systems designed to use R-32 instead of R-410A.

Reason 2

Light weight units.

R-32’s excellent thermodynamic properties allow appropriately designed HVAC system to use less refrigerant to accomplish the same heat transfer compared to blends for the efficiency level. Moving less refrigerant through HVAC systems allows for designs with smaller motors, smaller diameter piping and smaller heat exchangers to provide the same capacity and efficiency as many commonly used blended refrigerants, resulting in lighter weight and more compact units.

Reason 3

Better than 410A for the planet.

Total life cycle refrigerant impact measures the direct emissions from refrigerant, as well as the indirect emissions from electricity consumption. Because R-32 has a GWP of 675 and requires less charge in certain systems, direct emissions from those systems can be up to 80% lower than similar R-410A systems. And because R-32 can obtain higher efficiencies than many commonly used blends, units can be designed to consume less electricity over the lifetime of the equipment. The result? Fewer carbon emissions that contribute to climate change, based on our studies.

Reason 4

Easy to work with

As a pure, single-component refrigerant, R-32 can be topped off and recharged in the field, in both liquid and gas phases, without changes in composition. It is easy to clean and reuse on-site, and is easy to reclaim and recycle¹ off-site with a simple cleaning process, particularly as compared to blends with HFOs that are typically reclaimed by being distilled to their pure compounds and then remixed.

Reason 5

Globally accepted.

Reason 6

Non-proprietary.

R-32 is widely available, manufactured by numerous refrigerant producers, and distributed globally. There are no active patents on the basic molecule. Some alternative low-GWP blends can be proprietary to the companies that own the patents, potentially limiting access and supply.

Reason 7

Lower price per pound.

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Reason 8

Pure, not blended.

As a pure, single-component refrigerant, R-32 can be topped up and recharged in the field, in both liquid and gas phases, without changes in composition. It is easy to clean and reuse on-site, and easy to reclaim and recycle¹ off-site with a simple cleaning process, particularly as compared to blends with HFOs that are typically reclaimed by being distilled to their base components and then remixed.

Reason 9

Widely available.

R-32 is widely available, manufactured by numerous refrigerant producers, and distributed globally. There are no patents on the basic molecule. Certain alternative low-GWP blends can be proprietary to the companies that own the patents, potentially limiting access and supply.

Reason 10

Easy to install.

R-32’s excellent thermodynamic properties provide OEM engineers the opportunity to design systems that use less refrigerant to accomplish heat transfer compared to other blends, over a range of efficiency levels. Moving less refrigerant through the HVAC systems allows for designs with smaller motors, smaller diameter piping and smaller heat exchangers to provide the same capacity and efficiency as blended refrigerants.

Reason 11

Lower refrigerant carbon footprint than R-410A.

R-32 systems can have a positive impact on climate change due to HVAC systems. Total life cycle refrigerant impact measures the direct emissions from refrigerant, as well as the indirect emissions from electricity consumption. Because R-32 has a GWP of 675 and requires less charge in certain systems, direct emissions from those systems can be up to 80% lower than similar R-410A systems. And because R-32 can obtain higher efficiencies than many blends, systems that consume less electricity over those systems’ lifetimes can be introduced. The result? Fewer carbon emissions that contribute to climate change.

Reason 12

You may already be using it.

Because of R-32’s availability, low cost, and excellent performance, it is used in large quantities in R-410A and most alternative low GWP blends.

Reason 13

Lower GWP.

R-32 has a GWP of 675, which is lower than any currently enacted legislative and regulatory standards in the North American jurisdictions.

Reason 14

Efficient in harsh conditions.

R-32 systems can be more efficient in a broader range of operating conditions in certain applications. Testing in Daikin’s labs of inverter-driven compressors for rooftops units and water-cooled chillers found that full-load and partial-load efficiency rating metrics can be improved by up to 12% in systems designed to use R-32 instead of R-410A. Daikin estimates over 230 million R-32 units are in operation around the globe in more than 130 countries, regions and climates, including Japan, India, Australia, the Middle-East, Russia, Greenland, the European Union and the United States.

Reason 15

10% more thermal capacity.

R-32 has greater latent heat capacity than R-410A, which means that R-32 can achieve the same capacity at a lower refrigerant flow rate. And at a lower flow rate, less energy is required to produce refrigerant flow, resulting in higher efficiencies for R-32.

Reason 16

No glide.

R-32 is a single component refrigerant and has no glide. When blends separate, you can negatively impact heat exchanger and system performance. Because R-32 is a single component refrigerant, its composition doesn’t change, so there are no negative blend-related performance impacts in any type of heat exchanger.

Reason 17

Design for low total cost of ownership.

When you combine the low cost for R-32 per pound and the low charge quantity with low electricity consumption, R-32 can yield low total cost of ownership. Add in easier handling from recharging in the field as compared to non-azeotopic blends, R-32 can add up impressive savings.

Reason 18

Tops off.

Because R-32 is a pure, single component refrigerant, service technicians can be assured that the composition has not changed over time, so it is easy to top off during a service call. With non-azeotropic blends, it is generally not recommended to top off; the system may need to be evacuated and then recharged with new refrigerant, which can be costly in terms of materials and labor.

Reason 19

Used around the globe.

R-32 has been safely deployed in over 230 million units in the US and around the world. In more than 130 countries and regions, mechanical contractors and service technicians are already knowledgeable and skilled in its safe and effective handling in many HVAC applications including residential splits, VRF, scroll chillers, rooftops, and window units. R-32 has become the de facto global standard to replace R-410A in many HVAC applications.

Reason 20

Pledged patents.

Daikin Group offers worldwide free access to certain of its equipment patents to help other innovators accelerate their product development using this top performing refrigerant.

Reason 21

Chosen by manufacturers around the world.

R-32 has been selected as the alternative to R-410A by 50+ manufacturers around the world, including Asia, Europe, India and North America. Today it's safely deployed in over 230 million units including residential splits, VRF, scroll chillers, rooftops, and window units. R-32 has become the de facto global standard to replace R-410A in many HVAC applications.

Reason 22

Difficult to ignite.

R-32 is a proven, lower toxicity mildly flammable refrigerant. R-32 is classified as an A2L. National and international safety standards have been modified to help protect building users, such that the HVAC equipment and systems are engineered with proven safety mitigations. More than 230 million R-32 units are operating safely around the world in chillers, packaged rooftops, VRF, residential splits and window air conditioning units.

Reason 23

Lower charge.

Because R-32 is a pure, single component refrigerant with excellent thermodynamic performance characteristics, our analysis indicates that an R-32 system can be engineered to have 40% less charge than a similar R-410A system, meaning you could reduce the amount of refrigerant in the system and potentially also reduce the amount of refrigerant leaking to the environment.

Reason 24

Falls below many international GWP requirements.

While there is no single international standard for GWP limits, many countries have set a benchmark of less than 750. For example, by 2025, the European Union's F-gas Regulation will ban certain new split AC systems containing less than 3kg of HFCs that have a GWP greater than 750; Canada will limit GWP for refrigerants used in certain new comfort chillers to 750 by 2025; and Japan has targeted a GWP of 750 for various room air conditioning and commercial air conditioning.

Reason 25

Designable to draw less electricity.

Because R-32 can obtain higher efficiencies than many commonly used blends, HVAC engineers can develop systems that consume less electricity over those systems’ lifetimes. The result? Lower electricity costs over the life cycle of the equipment, based on our analysis.

Reason 26

Design systems using fewer raw materials.

R-32’s excellent thermodynamic properties can allow the HVAC system to use less refrigerant to accomplish heat transfer compared to other blends for any efficiency level. Moving less refrigerant through the HVAC systems allows for design with smaller motors, smaller diameter piping and smaller heat exchangers to provide the same capacity and efficiency as blended refrigerants. Smaller parts can benefit the environment because less energy is needed to mine and process raw materials and ship finished goods.

Reason 27

Zero composition change.

Because R-32 is a single component refrigerant, its composition doesn’t change over time as it does with most blended refrigerants. This means there are no negative performance impacts due to composition change. And R-32 can be easily topped off or recharged in the field in either a liquid or gas phase.

Reason 28

Easy to reuse and recycle.

Pure, single component R-32 makes “Reduce, Reuse, Recycle¹" easier to achieve in the industry. Reduce: our analysis indicates that R-32 systems can be designed to have up to 40% less charge than similar R410A systems. Reuse: R-32 can be topped up and recharged in the field, in both liquid and gas phases, without changes in composition. It is easy to clean and reuse on-site. Section 608 of the Clean Air Act allows appliance owners to reuse recovered refrigerant in other equipment under same ownership. A single component refrigerant doesn’t lose its composition like many blended refrigerants and will retain its quality over time. Recycle¹: R-32 can be reclaimed and recycled off-site with a simple cleaning process, as compared to blends with HFOs that are typically reclaimed by being distilled to their base components and then remixed.

Reason 29

Chargeable in liquid and gas forms.

Being a pure, single-component refrigerant, R-32 can be topped off and recharged in the field in both liquid and gas phases without changes in composition.

Reason 30

Components with a proven history.

With today’s installed base exceeding 230 million units from 50+ OEMs, R-32 components have a proven history. Products and components using many alternative, low-GWP refrigerants are under testing or have only recently been introduced to the HVAC market.

Reason 31

Proven use.

R-32 has been safely deployed in over 230 million units in the US and around the world. In more than 130 countries and regions, mechanical contractors and service technicians are already knowledgeable and skilled in its safe and effective handling in many HVAC applications including residential splits, VRF, scroll chillers, rooftops, and window units. R-32 has become the de facto global standard to replace R-410A in many HVAC applications.

Reason 32

34 million new units annually.

R-32 has been safely deployed in over 230 million units in the US and around the world. In more than 130 countries and regions, mechanical contractors and service technicians are already knowledgeable and skilled in its safe and effective handling in many HVAC applications including residential splits, VRF, scroll chillers, rooftops, and window units. R-32 has become the de facto global standard to replace R-410A in many HVAC applications.