| 摘要 |
An improved dual refrigeration and defrost system having cycles of refrigeration and defrost so integrated that the heat collected from one bank of refrigerating evaporators is used for defrosting another evaporator unit with the refrigerant lines into the refrigeration chamber being reduced to a two pipe refrigerant supply line and a suction return line that permits almost all critical control components to be located outside of the refrigeration chamber to facilitate safe and convenient maintenance and repair of said control components.
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