Refrigerant R449a

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  • REFRIGERANT R449A

    Lower GWP replacement for refrigerant R404a in new equipment designs and retrofit systems, with improved performance and higher cooling capacity

    Refrigerants

LOW-GWP BLEND FOR NEW AND RETROFIT SYSTEMS

R449a is a mixture of common hydrofluorocarbons (HFC) and new hydrofluoro-olefin molecule R1234yf (HFO), a composition of R32 (24%), R125 (25%), R134a (26%), and R1234yf (25%) gases. Refrigerant R449a is non-toxic and non-flammable and has been assigned A1 safety classification under EN 378 and ASHRAE 34 standards. Chlorine is not present in R449a, and consequently, it has zero ozone depletion potential (ODP). Its global warming potential (1397) is 64% respectively lower than R404a.

R449a is suitable for new installations as well as for retrofit of existing systems, offering improved energy efficiency and environmental properties.

APPLICATIONS, BENEFITS, AND PERFORMANCE

R449a refrigerant

APPLICATIONS:

  • Low- and medium-temperature commercial and industrial DX refrigeration
  • Centralized and distributed systems for supermarkets, coolers, and freezers
  • Condensing units
  • Cold stores
  • New equipment/retrofit of existing systems

PERFORMANCE:

  • Cooling capacity similar to R404a
  • 10% higher energy efficiency compared to R404a​

ENVIRONMENTAL BENEFITS:

  • Non-ozone depleting and low-GWP
  • Improved energy efficiency compared to R404a/R507a
  • Safe, non-toxic and non-flammable (ASHRAE A1 safety classification)
  • Quick, easy and cost-effective retrofit from R404a/R507a

R449A PROPERTIES

ASHRAE number

R449a

Composition

R32/R125/R1234yf/R134a

Boiling point @ 1atm [°C]

-46.0

Critical temperature [°C]

81.5

Ozone depletion potential

0

GWP AR5

1397

ASHRAE safety class

A1

Temperature glide [K]

0.0

Molecular weight [g/mol]

87.2

Liquid density @ 21.1°C [kg/m³]

1113.3

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