R-22 has been the dominant refrigerant in residential and commercial air conditioning and large chillers for air conditioning and industrial process cooling and for medium and low-temperature commercial refrigeration applications. It can also be used as an aerosol propellant for pesticide and paint, or as a fire extinguishing agent. It is a primary feedstock for fluoropolymers.
R-22 has been subject to reduced production and restriction in new equipment since 2010, and production of the refrigerant is to end in 2020. The use of R-22 is allowed until the supply has been depleted. R-22 is non toxic and non flammable meeting the highest A1 Classification.
|ASHRAE Standard 34 Safety Rating
|Critical Density (Lb/Ft³)
|Critical Pressure (psia)
|Critical Temperature ( Deg. F)
|Heat of Vaporization (bp, BTU/Lb.)
|Liquid Density (70 F, Lb/Ft³)
|Vapor Density (bp, Lb./Ft³)
A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle. In most cycles it undergoes phase transitions from a liquid to a gas and back again. Many working fluids have been used for such purposes.
The color guideline is not a substitute for reading cylinder labels and markings.
Refrigerant is a tasteless, mostly odorless gas. When it is deeply inhaled, it can cut off vital oxygen to your cells and lungs. Limited exposure — for example, a spill on your skin or breathing near an open container — is only mildly harmful. However, you should try to avoid all contact with these types of chemicals.
To remove chlorine from the refrigerant, manufacturers created another set of refrigerants called HFCs (or Hydro Fluro Carbons). Although they also have the potential for global warming, but still they are better than HCFCs as they do not deplete the ozone layer. The most common HFC used in air conditioners is R-410A.
Widely used in many air conditioning and refrigeration systems globally.
It is a hydro-fluorocarbon (HFC) that does not contribute to ozone depletion; also the first non-ozone-depleting fluorocarbon refrigerant to be commercialized.
To remove chlorine from the refrigerant, manufacturers created another set of refrigerants called HFCs (or Hydro Fluro Carbons). Although they also have the potential for global warming, but still, they are better than HCFCs as they do not deplete the ozone layer. The most common HFC used in air conditioners is R-410A.