The climate change is a global issue with catastrophic consequences which remind us almost every day. There are alarming projections of GHG emissions including HFCs. In Europe the Regulation No 517/2014 on F-gases has been introduced with many restrictions and gradually phase-down. The 28 Meeting of the Parties (in 2016) adopted an amendment to the Montreal Protocol for gradually phase-down of HFCs (from 2019 to 2047) to achieve 85% reduction. Recently, new HFC refrigerants (named HFOs) with low GWPs are appeared on the market.
The choice of refrigerant (and technology) has become a very complicated issue. In the RAC industry, confusion and uncertainties related to working fluids in many applications are continuing. In addition, there are many groups with diverging interests: chemical companies, manufacturers of equipment, distributors, users, environmental organizations, politicians and the public.