Care 30

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CARE 30 is a refrigerant consisting of a blend of isobutane (R-600a) and propane (R-290) developed to replace dichlorodifluoromethane (R-12) and 1,1,1,2-tetrafluoroethane (R-134a). It is primarily for use in small commercial refrigeration and air-conditioning systems that have traditionally used R-12.

Compatibility[edit]

It operates at similar pressures and possesses similar volumetric refrigerating effect to R-12 and R-134a. It must be used with a specific CARE 30 compressor. It can be used with R-12 or R-134a heat exchangers and expansion devices. It is compatible with most common refrigeration materials and lubricants.

Comparison[edit]

Comparison with R-12 and R-134a

CARE 30 R-12 R-134a
Chemical Type HC CFC HFC
Composition zeotrope Pure Pure
Application small commercial - -
Temperature Range high, medium - -
Ozone depletion potential (CFC-11=1) 0 0.9 0
Global warming potential (CO2=1, 100yr ITH) 3 10600 1600
Normal boiling point (1.0 bar, abs) -31 °C -30 °C -26 °C
Latent heat (1.0 bar, abs) 367 kJ/kg 145 kJ/kg 189 kJ/kg
Refrigerant mass charge size (R-12=100%) 41% 100% 91%