ORAFON HFC-407c

DIFLUOROMETHANE (HFC-32) (CH2F2) 23%  / PENTAFLUOROETHANE (HFC-125) (C2HF5) 25%  / 1,1,1,2-TETRAFLUOROETHANE (HFC-134a) (C2H2F4) 52%
CAS Number  :  75-10-5 (HFC-32) / 354-33-6 (HFC-125) / 811-97-2 (HFC-134a)
Molecular Mass (g/mol of blend)  :  86.20
Normal Boiling Point  :  -33.88 °F / -36.6 °C
Ozone Depletion Potential (ODP) (CFC-11 = 1.0)  :  0
Global Warming Potential (GWP) (CO2 =1.0) (100 year)  :  1,700

ORAFON HFC-407c is a non ozone depleting and medium Global Warming Potential, zeotropic blend of HFC refrigerants R-32, R-125 and R-134a. They have been formulated to match the properties of R-22 closely in air conditioning applications. They can be used to replace R-22 in new or existing R-22 residential and commercial air conditioning systems as well as non flooded evaporator chillers.

ORAFON HFC-407c is completely immiscible with mineral oil and will require a complete oil change to POE when retrofitting an R-22 installation.  Like other R-22 retrofits. They are a high glide blend and is therefore typically not recommended for use in a system with a flooded evaporator.

ORAFON HFC-407c is zeotropic. It should be charged as a liquid to prevent fractionation (changes in refrigerant composition). Insituations where vapor is normally charged into a system, a valve should be installed in the charging line to flash the liquid to vapor while charging.

POE lubricants must be used with R-407c since its components are not miscible with the mineral oil or alkylbenzene lubricants.

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