COMPOSITION CONTAINING COOLANT INCLUDING R32, R125, R143a AND R134a, FREEZING METHOD USING THE COMPOSITION, OPERATION METHOD OF REFRIGERATOR, AND REFRIGERATOR

摘要

To provide a composition containing a coolant having refrigeration performance equal to R404A widely used at present and using the coolant small in GWP.SOLUTION: There is provided a composition containing a coolant, the coolant containing difluoromethane (R32), pentafluoroethane (R125), 1,1,1-trifluoroethane (R143a) and 1,1,1,2-tetrafluoroethane (R134a) at specific concentrations.SELECTED DRAWING: None