R290 (UL Classified)
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R-290 is a High Purity, non odorized, refrigerant grade propane. Hydrocarbons like R-290 are replacing traditional refrigerants (R22) because of their low environmental impact. Converting to R-290 from CFCs, HCFCs, must be compliant with all governmental regulations. Please check with the manufacturer of the equipment for appropriate conversions. Refer to the EPA’s SNAP List (Significant New Alternatives Policy) for a complete list of acceptable uses. Go to www.EPA.gov and search for EPA Regulations 40 CFR Part 82.17.
R290’s thermodynamic properties are superior to both R134a and R404a. R290’s heat capacitance is approximately 90% greater than R134a and 140% greater than R404a with lower viscosity. This means that R290 can absorb more heat, faster, resulting in quicker temperature recovery and lower energy consumption.