R407B refrigerant is an alternativeR22HFC refrigerants are used in displacement systems, such as new or existing residential, commercial air conditioners and heat pumps. The R407B provides performance similar to that of the R22 and can also be used as an alternative to existing mid-temperature applications with evaporation temperatures above +20 ° F (-7 ° C)R502，R22。The R407 series refrigerants have a large slip temperature (5 ° C) and are suitable for use in unit air conditioners and chillers using dry evaporators.
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