GREEN COOLING SOLUTIONS

R454a refrigerant

R454a refrigerant has been developed for low-temperature applications previously covered by R404a and R507a. It features significantly lower GWP and superior performance characteristics

OVERVIEW

Low-GWP refrigerant to replace R404a

R454a is a mildly flammable refrigerant with very low global warming potential (94% reduction versus R404a) and an optimal balance of properties for replacement of R404a in new equipment designs, including direct expansion low- and medium-temperature commercial and industrial refrigeration systems.

Classified as mildly flammable, R454a allows much higher charge sizes than other flammable refrigerants and offers improved energy efficiency and higher cooling capacities.

Applications, performance, and environmental benefits

APPLICATIONS
  • Low-temperature commercial, industrial, and transport refrigeration systems

  • Distributed systems for supermarkets, coolers, and freezers

  • Condensing units for medium- and low-temperature applications

  • Cols stores

ENVIRONMENTAL BENEFITS
  • Zero ozone depletion potential

  • Low global warming potential of 239​

PERFORMANCE
  • Improved capacity compared to R404a

  • Improved efficiency vs. R404a​

R454a properties

ASHRAE number

R454a

Composition

65% R1234yf/35% R32

Molecular weight

80.5 g/mol

Boiling point @ 1 atm

-48.3°C

Critical temperature

78.9°C

Ozone depletion potential

0

AR5 GWP

239

ASHRAE safety class

A2L

Temperature glide

~5K

Liquid density @ 21.1 °C

992.7 kg/m³

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Germany


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