Patent ID: 8145363

Claim:
A pumped refrigerant cooling system for use in a row of equipment racks configured to contain electronic equipment, the pumped refrigerant cooling system comprising: a communication network; a refrigerant distribution unit in fluid communication with a chilled refrigerant supply and a heated refrigerant return, the refrigerant distribution unit being coupled to the communication network; at least one cooling module in fluid communication with the refrigerant distribution unit by a supply line and a return line, the cooling module being coupled to the communication network, the cooling module including an evaporator and at least one fan configured to direct air over the evaporator; a sensor package coupled to the communication network, the sensor package being configured to monitor temperature and pressure reference points provided in the pumped refrigerant cooling system and the equipment racks; and a controller forming part of the cooling module and coupled to the communication network and the sensor package, the controller, based on information obtained from the sensor package, being configured to manipulate the flow of refrigerant through the evaporator by controlling the delivery of refrigerant to the evaporator and being configured to manipulate the flow of air over the evaporator by controlling the speed of the fan.