The company announced that it has approved R448A and R449A, the low global warming potential alternative refrigerants to R404A and R507A, for use with its compressors.
The approval came after Bitzer modified its compressors to work with refrigerants R448A and R449A. They have global warming potentials of 1386 and 1397, respectively. R404A has a GWP of 3922 and its use will be banned in stationary areas after 2020 because of the F-Gas regulations.
Bitzer's tests, using the alternatives to R404A and R507A show that its modified compressors work perfectly well with R448A and R449A, and can be applied in 'areas are practically identical to those of R407F', according to the company's statement.
R448A and R449A are 'transitional refrigerants' which help to bridge the gap as industry moves towards using low GWP refrigerants entirely.