This refrigerant has been prepared by mxing R32 +R125 + R143a + R134a in their mass percentages of 15 + 25 + 10 + 50 respectively. It belongs to HFC group of refrigerants. Its ODP is zero and GWP is 2000. It is neither toxic nor flammable. Therefore it comes under the safety class of Al. Its boiling point at atmospheric pressure is —42.7°C. It is mixable with polyolester oils. Therefore, after drawing out mineral or alkybenzene oil from the compressor, new polyolester (POE) oil should be charged. Mineral oil can also be used with R427A machine if an oil separator may be fitted with this machine. This refrigerant can be replaced in R22 refrigerant machine without making any special change.
0 comments:
Post a Comment