| 摘要 |
An apparatus for supplying a cooling liquid to a condenser of a refrigeration unit. The apparatus comprises a conduit for passing the cooling liquid from a source thereof into thermal communication with the condenser, and a valve to regulate the flow of liquid through the conduit and having an open position allowing the liquid to flow through the conduit. The apparatus further comprises an electronic control for use with a source of an electronic signal, including an electronic switch having an open state in which the electronic signal does not pass through the switch, a closed state in which the electronic signal passes through the switch, and a trigger wherein, when an electronic signal having a predetermined magnitude passes to the trigger, the switch changes from the open state to the closed state. The electronic control also includes electronically actuated means positioned in series with the electronic switch for moving the valve to the open position, and a temperature responsive resistance element in thermal communication with refrigerant passing through the condenser and positioned in series with the trigger of the electronic switch for varying the magnitude of the electronic signal passing to the trigger in response to the temperature of the refrigerant passing through the condenser wherein the electronic switch changes from the open state to the closed state when the temperature of the refrigerant passing through the condenser reaches a predetermined magnitude.
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