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Genetron® 408A

An interim replacement for retrofitting low-and medium-temperature commercial refrigeration systems.

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    General Information

    • ASHRAE #R-408A
    • ClassHFC
    • Refrigerant TypeBlend
    • SubstitutesR-502, HCFC-22
    • ContainsHFC-125 (7%), HFC-143a (46%), HCFC-22 (47%)
    • GlideLow
    • NotesWorks well as R-502 substitute. Higher discharge temperatures than R-502. Use either synthetic oil or blends of AB/MO with AB>50%.

    Physical Properties

    • Chemical NamePentafluoroethane, Trifluoroethane, Chlorodifluoromethane
    • Chemical NotationCF3CHF2, CF3CH3, CHClF2
    • Molecular Weight (lbm/lbmol)87.7
    • Boiling Point @ 1 Atm, (°F)-48.2
    • Critical Temperature (°F) (ASTM D-1321)181.65
    • Critical Pressure* (psia)622.87
    • Saturated Liquid Density @ 86°F, (lb/ft3)64.8
    • Specific Heat of Liquid @ 86°F, (Btu/lb•°F)0.36
    • Specific Heat of Vapor @ Constant Pressure* (Cp), @ 86° and 1 Atm, (Btu/lb•°F)0.17
    • Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition)None
    • ANSI/ASHRAE Standard 34-1992 Safety Group ClassificationA1