Supermarkets: retrofit of refrigerating systems from R404A to R449A

The existing R404A refrigeration system of a Waitrose supermarket located in Holsworthy (UK) has been retrofitted with R449A refrigerant (HFO/HFC blend of R32, R125, R134a and R1234yf). R449A has a rather high GWP (1397) but significantly lower than R404A’s GWP (3922) and complies with EU F-gas Regulation requirements.