Application Guide.pdf - Emerson Swan

Cooling Tower Cooling TowerCondenserEvaporatorCentral Plants / Production UnitsChillers are commonly staged ON/OFF depending onrequired capacity. Water flow through each chiller isnormally constant during operation. Each chiller hasan evaporator side through which water flows and, forwater cooled chillers, there is also water flow throughthe condenser side. In many cases there are multiplecooling towers. Each of these areas requires balancing.Boilers are, like the chillers, usually staged ON/OFF,depending on the required capacity. On very largeboiler plants the exhaust may also be equipped with acondenser side.As the flow through each evaporator, condenser, boileror cooling tower is constant, the balancing is mosteasily accomplished with AutoFlow . The balancing canalso be done with manual balancing such as FlowSet .CondenserEvaporatorBalancing options:Rating1. Flow limiting on each sectiona. ATC + AutoFlow ★★★2. Manual balancing on each sectiona. ATC + FlowSet ★★CENTRAL PLANT OVERVIEWCENTRAL PLANT35