Abstract: A method is disclosed for analyzing performance of a chilled water (CW) system having a plurality of CW components. The method may consider a collection of at least one of allowable operating points, allowable operating ranges or allowable operating conditions, for each one of the CW components. A user set or system measured ambient wet bulb (WB) temperature may be considered for an environment in which at least a subplurality of the CW components are located. Equivalent loop conditions may be calculated for each of the CW components covering a load being thermally managed by the CW system. For each one of the calculated equivalent loop conditions, a processor may generate information for balancing the CW components to meet load requirements, and then analyze and select a balance condition that yields the user preferable optimization.

Abstract: A cooling system for an equipment closet in a building has a direct expansion cooling circuit. The cooling system has two basic modes of operation. A first mode where the direct expansion cooling circuit is off and transfer air from an area of the building outside the equipment closet is used to cool the interior of the equipment closet without any cooling provided by the direct expansion cooling circuit and a second mode where the direct expansion cooling circuit is on and provides direct expansion cooling that is used to cool the interior of the equipment closet.

Abstract: The present disclosure relates to a processor based system for using temperature information being reported by a plurality of sensors present within a predetermined environment and controlling how various ones of the sensors are grouped together into a plurality of groups for monitoring purposes. The system includes a software subsystem that generates an association matrix screen on a display system associated with a computer system being used by a user with receives the temperature information. The association matrix screen enables a user to associate or disassociate specific sensors with selected groups of sensors using selection commands, as well as to provide temperature related information concerning all of the sensors being monitored by the system. Each of the sensors is not limited to being assigned to only a single group of sensors but may instead be assigned to two or more different groups of sensors for purposes of monitoring and/or control.

Abstract: The present disclosure relates to a processor based system for using temperature information being reported by a plurality of sensors present within a predetermined environment and controlling how various ones of the sensors are grouped together into a plurality of groups for monitoring purposes. The system includes a software subsystem that generates an association matrix screen on a display system associated with a computer system being used by a user with receives the temperature information. The association matrix screen enables a user to associate or disassociate specific sensors with selected groups of sensors using selection commands, as well as to provide temperature related information concerning all of the sensors being monitored by the system. Each of the sensors is not limited to being assigned to only a single group of sensors but may instead be assigned to two or more different groups of sensors for purposes of monitoring and/or control.

Abstract: A cooling system for an equipment closet in a building has a direct expansion cooling circuit. The cooling system has two basic modes of operation. A first mode where the direct expansion cooling circuit is off and transfer air from an area of the building outside the equipment closet is used to cool the interior of the equipment closet without any cooling provided by the direct expansion cooling circuit and a second mode where the direct expansion cooling circuit is on and provides direct expansion cooling that is used to cool the interior of the equipment closet.

Abstract: A method is disclosed for analyzing performance of a chilled water (CW) system having a plurality of CW components. The method may consider a collection of at least one of allowable operating points, allowable operating ranges or allowable operating conditions, for each one of the CW components. A user set or system measured ambient wet bulb (WB) temperature may be considered for an environment in which at least a subplurality of the CW components are located. Equivalent loop conditions may be calculated for each of the CW components covering a load being thermally managed by the CW system. For each one of the calculated equivalent loop conditions, a processor may generate information for balancing the CW components to meet load requirements, and then analyze and select a balance condition that yields the user preferable optimization.