RS-44 (R424A)

Lubricants

RS-44 is compatible with both the traditional and new synthetic lubricants so that there is no need to change the oil when converting from HCFC 22 to RS-44. RS-44 is suitable for use with mineral, alkylbenzene and polyol ester lubricants.

Applications

RS-44 has been developed for use in all applications where HCFC 22 has traditionally been used including commercial air conditioning, cold stores, supermarkets, dairy chillers, refrigerated transport, cellar cooling and others.

Chart 2 : Discharge Pressure v Condenser Temperature

Chart 2 : Discharge Pressure v Condenser Temperature

Safety

RS-44 has been independantly tested and meets the ASTM 681-98 test of being non flammable as formulated and under all conditions of fractionation.

The components of RS-44 have been subjected to toxicity test carried out by Alternative Fluorocarbons Environmental Acceptability Study (AFEAS), and have been declared to be of low toxicity. Health and safety data is available on request.

Chart 3 : Discharge Temperature v Evaporator Temperature

Chart 3 : Discharge Temperature v Evaporator Temperature

Servicing

Because RS-44 is a blend, it should be charged into the system in the liquid as opposed to vapour form. There is no need to make any hardware changes when converting from R22 to RS-44.