PURPOSE: An R32/R290 mixed coolant is provided to replace R410A and monochloro fluoro methane, and to have an ODP(Ozone Depletion Potential) of 0.0 and a low global warming potential. CONSTITUTION: An R32/R290 mixed coolant comprises 55-80% of R32(methylene fluoride; CH2F2) and 20-45% of R290(propane; CH3CH2CH3). The ozone depletion potential of the coolant is 0 and the GWP(Global Warming Potential) is 20.84-27.7% of R410A. The VC(Volumetric Capacity) of the coolant is 12.8-16.7% of the R410A. The coolant does not show a temperature gradient as a pure material does.
