New Refrigerant 2024 Flammables List. So, what will it be replaced with? The fact sheet also presents the.

By 2025, all new refrigeration systems must use flammable refrigerants. The higher gwp refrigerants r134a, r410a and r407c are amongst a list of over 25 refrigerants deemed unacceptable for use in positive displacement and centrifugal chillers from january 1,.