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Class 165/220 - Additional supply main (e.g., three pipe system, etc.)


Subclass of Class 165 - Heat exchange
Definition: Subject matter further including a second distinct supply
No. of patents: 11
Last issue date: 01/23/2007


NumberTitleIssue Date
7165410Evaporative cooler drain pump
A drain pump assembly is provided for use with an evaporative cooler having a water reservoir and a circulating pump. The drain pump assembly includes a drain pump operative to pump accumulated water from the reservoir when the drain pump is turned on and a controll...
01/23/2007
7028768Fluid heat exchange control system
A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchang...
04/18/2006
6991028Thermal reservoir for two-pipe hydronic air-conditioning system
A thermal reservoir for a two-pipe hydronic air-conditioning system is disclosed. Said thermal reservoir includes a well-insulated tank for alternatively storing hot and cold water. Said thermal reservoir contains plurality of valves for directing hot water stored t...
01/31/2006
6945324Controlling method for the discharge of coolant medium in the heat exchange wind box
The invention relates to a controlling method of the discharge of coolant medium, and more particularly to a controlling method of the discharge of coolant medium in the heat exchange wind box. By mainly controlling the discharge of coolant medium in the heat exchan...
09/20/2005
6834714Variable constant volume cooling/heating unit
A variable constant volume cooling/heating unit comprising a warm fluid delivery pipe; a cool fluid delivery pipe wherein the warm fluid deliver pipe and cool fluid deliver pipe lead to a two position three way valve, a modulating three way valve for mixing the flow...
12/28/2004
6644398Advanced starting control for multiple zone system
A system and method for controlling delivery of conditioned water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future demands for conditioned water by a plurality of zone controllers associ...
11/11/2003
6591901Advanced starting control for heating/cooling systems
A system and method for controlling delivery of either heated or cooled water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future heating or cooling demands of a plurality of zone controlle...
07/15/2003
6467537Advanced starting control for multiple zone system
A system for controlling delivery of conditioned water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future demands for conditioned water by a plurality of zone controllers associated with t...
10/22/2002
6453993Advanced starting control for multiple zone system
A system for controlling delivery of either heated or cooled water to a plurality of heat exchangers includes a system controller which gathers information as to the current and future heating or cooling demands of a plurality of zone controllers associat...
09/24/2002
5156203Air conditioning system
The present invention relates to air conditioning systems and more particularly to an air conditioning system which provides air conditioning in each of a plurality of spaces. The air conditioning system according to the present invention divides a space ...
10/20/1992
4718478Procedure for controlling a thermal installation
A process controlling a thermal installation is described. The flow of a process liquid through a heat exchanger is achieved dependent upon two temperatures. One is the return temperature of the process liquid which, through the switching on and off or mo...
01/12/1988
 
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