ACR Journal

21 The RAC Engineer’s Guide to Low GWP Refrigerants COMMERCIAL Market shift to low GWP alternatives has been high, with use of: R448A R449A R513A R452A RECLAIMED R404A also remains a popular choice. Be aware of the 150 GWP threshold in 2022 on new commercial multi-pack systems above 40kW. For new installations the market may move to: R454C R454A R455A R1234YF PROPANE PROPYLENE * Availability of HFCs with a high GWP may be affected following the quota phase down. Consider product availability when making your refrigerant choice. A-Gas encourages you to always seek technical advice before making a product change. N.B. The F-Gas Regulation is subject to review in 2021/2022 which may result in additional bans. CHILLERS There is no current ban affecting the use of HFC refrigerants* in chillers. We expect to continue to see the use of: R134a R410A R32 , R454B and R513A are alternatives being used in some applications. Over time, users looking for longer term, low GWP solutions may move to: R1234ZE R1234YF INDUSTRIAL As we move away from R404A and R507 in large industrial refrigeration systems, popular choices appear to be natural refrigerants such as: AMMONIA R744