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R32 is a chlorine-free, ozone-safe fluorocarbon whose boiling point is -52°C. R32 is a component of R410a, a blend refrigerant widely used in developed coun- tries as a main alternative to HCfC-22, an ozone depleting refrigerant.
R-32 is the most balanced refrigerant in terms of environmental impact, energy efficiency, safety, and cost-effectiveness. Refrigerant is a medium for conveying heat. Air conditioners transfer heat while circulating refrigerant between the indoor and outdoor units.
The document summarizes the benefits of using R-32 refrigerant compared to other refrigerants. It notes that R-32 contributes to reducing ozone depletion and global warming potential, has lower risk and better availability, and provides better efficiency with less refrigerant volume.
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R-32, or difluoromethane (CH2F2), is an HFC refrigerant with a GWP of 675, which is markedly lower than that of R-410A and many other commonly used refrigerants.
R-32 is a next-generation refrigerant that provides HVAC engineers the tools they need to design systems for low total cost of ownership: the low cost of the refrigerant per pound, coupled with the potential for lower charge size and easy handling for recharging when compared to non-azeotropic blends, can yield impressive savings. EPA SNAP Program.
Most refrigerants used today are hydrofluorocarbons (HFCs). Although there are many different HFC gases, the industry has been primarily using a combination of four: R-32, R-125, R-143a, and R-134a. For example, R-410A is 50% (R-32) and 50% R-125. Whereas, R-407C is 23% (R-32), 25% (R-125) and 52% (R-134a). 2
