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Genetron® HP81

An interim replacement for R-502 used mainly for ice machines and soft ice cream machines.

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    General Information

    • ASHRAE #R-402B
    • ClassHCFC
    • Refrigerant TypeBlend
    • Typical LubricantAlkylbenzene
    • SubstitutesR-502
    • GlideLow
    • NotesNiche refrigerant used in some ice machines.

    Physical Properties

    • Chemical NameChlorodifluoromethane, Pentafluoroethane, Propane
    • Chemical NotationCHClF2, CF3CHF2, C3H8
    • Molecular Weight (lbm/lbmol)94.7
    • Boiling Point @ 1 Atm, (°F)-52.6
    • Critical Temperature (°F) (ASTM D-1321)181.2
    • Critical Pressure* (psia)654.87
    • Saturated Liquid Density @ 86°F, (lb/ft3)70.4
    • Specific Heat of Liquid @ 86°F, (Btu/lb•°F)0.33
    • Specific Heat of Vapor @ Constant Pressure* (Cp), @ 86° and 1 Atm, (Btu/lb•°F)0.15
    • Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition)None
    • ANSI/ASHRAE Standard 34-1992 Safety Group ClassificationA1