CFC Refrigerants
The first halogen-based refrigerants (fluorinated hydrocarbons) were developed more than sixty years ago. These refrigerants are composed of chlorine, fluorine, and carbon, and are called chlorofluorocarbons (CFCs).
These refrigerants low toxicity, corrosion, and compatible with other materials. They are not flammable or explosive, but significant quantities must not be released where there is fire or electric heating element, Heat can cause them to break down into their elements, infliction of harm to human tissue. They are particularly harmful to the respiratory system. General CFC refrigerants include R-11, R-12, R-113, R-114, R-115, R-500 and R-502, R-503. R-500 and R-o02, and R-503 are azeotropic mixture, but are classified as CFCs by the American Society of Heating, Refrigeration, Air-Conditioning engineers (ASHRAE).
CFC it is considered that one of the main causes of the depletion of the ozone layer. By international agreement, they have not been manufactured since 1995. However, they are still widely used in existing residential units.
In force of legislation prohibiting the emission of CFCs into the atmosphere, new procedures and equipment have been developed, These are used to recover, recycle, and recover refrigerants containing CFCs. For more information on the EPA Act regulating the use of refrigerants
..
|
Refrigerants