Europe: US air conditioner and refrigerant equipment manufacturers believe that the future HFO refrigerant will become the mainstream refrigerant for European refrigeration products.
Carrier is looking for the best refrigerant products to replace the HFC-134a in screw and centrifugal chillers and the refrigerant R410A in scroll chillers, heat pumps and rooftop chillers.
In a new statement, Carrier said that they are committed to providing solutions that protect the environment and comply with EU F-Gas regulations. In Europe, Carrier's refrigerant use in its products has been significantly reduced by 50% over the past five years.
For screw chillers and heat pumps, Carrier chose HFO-1234ze(E) instead of car air-conditioning refrigerant gas 134a. HFO-1234ze(E) is not subject to EU F-gas regulations and the Kigali Amendment restrictions on fluorine greenhouse gases. Since its launch three years ago, more than 300 AquaForce chillers using HFO-1234ze(E) have been installed in Europe, the Middle East and Africa, with a cumulative use time of more than 2 million hours.
Carrier selected HFO-1233zd(E) as the long-term refrigerant of choice for centrifugal chillers. Because the GWP is 1, it will not be affected by F-GAS regulations. This refrigerant has been used in the Carrier's AquaEdge 19DV two-stage centrifugal unit.
However, Carrier said that current compressor technology is not compatible with low GWP HFO refrigerants for scroll commercial chillers and heat pump units.
Some solutions use moderate HFC refrigerants for GWP, and Carrier is trying to develop a range of refrigeration and heating products that meet the 2021 ecodesign efficiency requirements with moderate GWP refrigerants.
“This series is expected to be launched soon to further optimize energy efficiency and have the same operating temperature flexibility as current R410A units.