GREEN COOLING SOLUTIONS

R454c refrigerant

R454c is a low global warming potential refrigerant for replacement of R404a and R22 in the new commercial and industrial refrigeration systems

OVERVIEW

Replacement for R404a and R22 in the new equipment designs

R454c is a low GWP, HFO-based (hydrofluoroolefin) refrigerant with the optimum balance of properties to replace R404a and R22 refrigerants in medium- and low-temperature direct expansion applications. It offers the performance close to the refrigerants it is designed to replace which makes R454c easy and cost-effective to apply to new equipment with minor modifications.

With a GWP of 146, R454c falls under the 150-threshold value in the F-Gas regulation 517/2014 and Ecodesign requirements, thus being particularly suited for commercial and industrial refrigeration systems.

Applications, performance, safety and environmental benefits

APPLICATIONS
  • Low- and medium temperature commercial and industrial refrigeration systems formerly designed for R-404A or R-22

  • Condensing units, cold stores, walk-in coolers and freezers

  • Ideally suitable for hermetically-sealed refrigeration systems

PERFORMANCE RELATIVE TO R404A AT SIMILAR OPERATING CONDITIONS
  • 10% less capacity

  • 7.5% higher COP (coefficient of performance)

  • 25% reduction in mass flow

  • Lower compressor suction and discharge pressure

ENVIRONMENTAL BENEFITS
  • < 150 GWP (96 % reduction versus R404a)

  • Meets F-Gas and Ecodesign GWP requirements

  • Zero ozone depletion

  • Close performance match to R404a

  • Improved efficiency

  • Easily convertible from R404a and R22 design with minimal changes

  • Non-toxic and mildly flammable

R454c properties

ASHRAE number

R454c

Composition

78.5% R1234yf/21.5% R32

Molecular weight

90.8 g/mol

Boiling point @ 1 atm

-45.9°C

Critical temperature

82.4°C

Ozone depletion potential

0

AR5 GWP

146

ASHRAE safety class

A2L

Temperature glide

~6K

Liquid density @ 21.1 °C

999.5 kg/m³

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Germany


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