Abstract: A cooling system includes a condenser and first and second cooling circuits. The condenser is configured to condense refrigerant to a liquid. The first cooling circuit includes a direct expansion valve coupled to the condenser, a first evaporator coil coupled to the direct expansion valve, and a compressor coupled to the first evaporator coil. The first cooling circuit receives at least a first portion of the liquid refrigerant and output first refrigerant vapor, and the compressor receives the first refrigerant vapor and output a compressor refrigerant output to the condenser. The second cooling circuit includes a pump coupled to the condenser, an economizer valve coupled to the pump, and a second evaporator coil coupled to the economizer valve. The second cooling circuit receives at least a second portion of the liquid refrigerant and output a second vapor refrigerant to the condenser.

Abstract: A system for measuring hot or cold aisle containment air leakage in a data center includes a plurality of equipment enclosures arranged in a first row and a second row, a plurality of panels cooperatively arranged with the plurality of equipment enclosures to form an air containment region, and a conduit mounted within the air containment region and sealed at each end, the conduit having an orifice and a plurality of openings distributed at substantially uniform intervals along a length of the conduit.

Abstract: A cooling system includes a condenser and first and second cooling circuits. The condenser is configured to condense refrigerant to a liquid. The first cooling circuit includes a direct expansion valve coupled to the condenser, a first evaporator coil coupled to the direct expansion valve, and a compressor coupled to the first evaporator coil. The first cooling circuit receives at least a first portion of the liquid refrigerant and output first refrigerant vapor, and the compressor receives the first refrigerant vapor and output a compressor refrigerant output to the condenser. The second cooling circuit includes a pump coupled to the condenser, an economizer valve coupled to the pump, and a second evaporator coil coupled to the economizer valve. The second cooling circuit receives at least a second portion of the liquid refrigerant and output a second vapor refrigerant to the condenser.

Abstract: A system for measuring hot or cold aisle containment air leakage in a data center includes a plurality of equipment enclosures arranged in a first row and a second row, a plurality of panels cooperatively arranged with the plurality of equipment enclosures to form an air containment region, and a conduit mounted within the air containment region and sealed at each end, the conduit having an orifice and a plurality of openings distributed at substantially uniform intervals along a length of the conduit.

Abstract: A system for measuring hot or cold aisle containment air leakage in a data center includes a plurality of equipment enclosures arranged in a first row and a second row, a plurality of panels cooperatively arranged with the plurality of equipment enclosures to form an air containment region, and a conduit mounted within the air containment region and sealed at each end, the conduit having an orifice and a plurality of openings distributed at substantially uniform intervals along a length of the conduit.

Abstract: A system for measuring hot or cold aisle containment air leakage in a data center includes a plurality of equipment enclosures arranged in a first row and a second row, a plurality of panels cooperatively arranged with the plurality of equipment enclosures to form an air containment region, and a conduit mounted within the air containment region and sealed at each end, the conduit having an orifice and a plurality of openings distributed at substantially uniform intervals along a length of the conduit.

Abstract: A pumped refrigerant cooling system for use in a row of equipment racks is configured to contain electronic equipment. The system includes a communication network and a refrigerant distribution unit in fluid communication with a chilled refrigerant supply and a heated refrigerant return. A cooling module is in fluid communication with the refrigerant distribution unit by a supply line and a return line. The cooling module is coupled to the communication network, and includes an evaporator and a fan configured to direct air over the evaporator. A sensor package is configured to monitor temperature and pressure reference points provided in the pumped refrigerant cooling system and the equipment racks. The system further includes a controller forming part of the cooling module and coupled to the communication network and the sensor package.

Abstract: A cooling unit, which is configured to contain and cool air between two rows of equipment racks defining a hot aisle, includes a housing configured to be secured mounted on the two rows of equipment racks such that the housing spans the hot aisle, a heat exchanger supported by the housing and coupled to and in fluid communication with a coolant supply and a coolant return, and an air movement assembly supported by the housing and configured to move air over the heat exchanger. Other embodiments of the cooling unit and methods of cooling are further disclosed.

Abstract: A cooling unit, which is configured to contain and cool air between two rows of equipment racks defining a hot aisle, includes a housing configured to be secured mounted on the two rows of equipment racks such that the housing spans the hot aisle, a heat exchanger supported by the housing and coupled to and in fluid communication with a coolant supply and a coolant return, and an air movement assembly supported by the housing and configured to move air over the heat exchanger. Other embodiments of the cooling unit and methods of cooling are further disclosed.

Abstract: A cooling unit, which is configured to contain and cool air between two rows of equipment racks defining a hot aisle, includes a housing configured to be secured mounted on the two rows of equipment racks such that the housing spans the hot aisle, a heat exchanger supported by the housing and coupled to and in fluid communication with a coolant supply and a coolant return, and an air movement assembly supported by the housing and configured to move air over the heat exchanger. Other embodiments of the cooling unit and methods of cooling are further disclosed.

Abstract: A pumped refrigerant cooling system for use in a row of equipment racks is configured to contain electronic equipment. The system includes a communication network and a refrigerant distribution unit in fluid communication with a chilled refrigerant supply and a heated refrigerant return. A cooling module is in fluid communication with the refrigerant distribution unit by a supply line and a return line. The cooling module is coupled to the communication network, and includes an evaporator and a fan configured to direct air over the evaporator. A sensor package is configured to monitor temperature and pressure reference points provided in the pumped refrigerant cooling system and the equipment racks. The system further includes a controller forming part of the cooling module and coupled to the communication network and the sensor package.

Abstract: A method of controlling a cooling device comprising receiving an indication of a desired cooling capacity, providing a plurality of possible sets of operating parameters, determining a plurality of sets of estimated cooling outputs, each set of estimated cooling outputs corresponding to a respective one set of the plurality of possible sets of operating parameters, and selecting one set of operating parameters from the plurality of possible sets of operating parameters, the one set of operating parameters corresponding to a set of estimated cooling outputs of the plurality of sets of estimated cooling outputs that matches the desired cooling capacity. Other embodiments and apparatuses are disclosed.