Patent ID: 6591901
Filing Date: 2003-07-15
Classification: F24F,G05D

Abstract:
A process for controlling the provision of conditioned water to a plurality of heat exchangers, under the control of zone controllers, said process comprising the steps of:periodically polling the plurality of zone controllers for the heat exchangers to obtain information concerning current and future demands for heating or cooling by the zone controllers; determining whether there is a sufficient predominance of current heating demands from said zone controllers; determining whether there is a sufficient predominance of current and future demands for heating from said zone controllers when there is not a sufficient predominance of current heating demands; providing heated water to the heat exchangers in response to a determination that there is a sufficient predominance of current demands for heating or if there is a sufficient predominance of current and future demands for heating from said zone controllers; determining whether there is a sufficient predominance of current cooling demands from said zone controllers; determining whether there is a sufficient predominance of current and future demands for cooling from said zone controllers when there is not a sufficient predominance of current cooling demands; and providing cooled water to the heat exchangers in response to a determination that there is a sufficient predominance of current demands for cooling or if there is a sufficient predominance of current and future demands for cooling from said zone controllers.