| 摘要 |
A server cabinet cooler 1 comprises a housing and a refrigeration circuit with a compressor 19, a condenser 20, an expansion valve, and an evaporator 11. The refrigeration circuit is located within the housing which has a warm air intake for drawing warm air from a server cabinet 2 to the evaporator and a cooled air outlet for returning air into the server cabinet. The housing further comprises an external air intake for cooling the refrigerant in the condenser and a warm air outlet for returning warm air to the outside of the cooler. An additional valve, which may be a liquid solenoid valve, is located in the refrigerant circuit before the expansion valve, and a controller causes the additional valve to close the refrigeration circuit when the desired server cooling temperature is reached and to open the additional valve when cooling is required. A server cabinet comprising a server cabinet cooler has a sensor 18 located at or near the bottom of the cabinet, and the server cabinet cooler comprises a controller operating with the sensor to control the operation of the circuit. |
