Introduction The situation faced by the refrigeration / air conditioning industry has become increasingly severe, because ODP •CFCs: abolished in 1995 in developed countries •HCFCs: must be reduced to practically zero by 2020 GWP •Must reduce greenhouse gas emissions according to COP3 →What should we do to minimize CO2emissions? One solution is to develop high-efficiency AC equipment using HFCs In this presentation, examples of high-efficiency technology used in small and medium-sized air conditioning equipment and lessons for changeover to HFC refrigerants will be shown
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