

A Widely Used and Thoroughly Trusted Refrigerant
Freon™ 404A (R-404A) is a blended hydrofluorocarbon (HFC) refrigerant comprised of R-125, R-134a, and R-143a. It was designed to replace R-502 and R-22 used in commercial refrigerator equipment for low and medium temperature ranges. Its properties make it ideal for use in display cases, refrigerated vehicles, ice makers, and other applications.
Freon™ 404A is a nonflammable, low toxicity refrigerant that carries an ASHRAE A1 safety classification and offers similar properties to the refrigerant it replaces. It has zero ozone depletion potential (ODP) and a global warming potential (GWP) of 3920.
Freon™ 404A offers the best overall properties when compared to R-502. Its capacity and efficiency values are equivalent to R-502. It operates at comparable physical and thermodynamic properties which makes transitioning to new systems or retrofitting older systems easier. The compressor discharge temperatures of Freon™ 404A can fall 9 °C (14 °F) lower than R-502, which may lead to longer compressor life and better lubricant stability.
Original equipment manufacturers (OEMs) recommend using polyolester (POE) oil in a unit’s compressor when replacing R-502 with Freon™ 404A. After the oil change, Freon 404A will offer the same operating range as R-502