R454C (Opteon™ XL20) 

R454C (Opteon™ XL20) is a mildly flammable refrigerant with a GWP lower than 150 for replacement of R404A/R507A in new refrigeration systems.

R454C (Opteon™ XL20) based on Hydroflourolefines (HFO) with ultra low GWP and well balanced physical properties Refrigerant as a replacement for R404A/R507A in direct expansion systems in Medium and Low Temp in commercial and Industrial applications.

R454C (Opteon™ XL20) delivers a similar capacity like the refrigerants which should be replaced. So it is an easy and low cost solution for new systems.

It is classified as mildly flammable (ISO/ASHREA classification 2L), this allows significantly higher refrigerant charges in comparison to highly flammable A3 refrigerants and could be used safely when the safety precautions according to the existing regualtions and Norms were made.

With a GWP of 148 R454C (Opteon™ XL20) is below the 150 limit according to the F-Gas Regulation and the Ecodesign Directive and so especially qualified for hermetic sealed plug in equipment.

In fact of R454C (Opteon™ XL20) classified as a mildly flammable refrigerant 2L, please check the local regulations and norms like PED, EN378 or ISO5149 to select the maximal allowed filling charge, the product design and the handling for the planned application.


Commercial and industrial systems which were operated with R404A/R507A in former times.

  • Supermarkets
  • Walk-in cold stores and freezers
  • Condensing units 
  • Cold stores
  • Plug-in hermetically sealed systems (GWP < 150)
Find more information in the attached PDF-documents regarding R454C (Opteon™ XL20) 

R454C (Opteon® XL20) - product information

Safety of OpteonTM XL