Invention Grant
US5067556A Controller of refrigerating plant 失效
制冷机控制器

Controller of refrigerating plant
Abstract:
Control means in a controller for a refrigerating plant for turning on an electric heater (7) adjacent the evaporator (3) when the degree of superheat (27) of the refrigerant in the line between the evaporator (3) and compressor (1) exceeds its upper limit set value (31, 32, 33, 34), and turns off the electric heater (7) when the degree of superheat falls below its lower limit set value (31, 32, 33, 34).
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