Filter
Top Products
94 Chiller System Design and Control SYS-APM001-EN
System Controls
separate wetting (recirculation) pump provides a constant flow of water
through the tower. This is a low-energy pump, as very little lift is required.
Dedicated, variable-flow condenser pumps (CDWP-1 and CDWP-2) permit a
reduction in the pumping energy whenever the temperature of condenser
water results in an unproductive reduction of condenser refrigerant pressure.
While the number of dedicated pumps may seem complicated at first,
remember the number of valves and controls that are eliminated.
Figure 56. Decoupled condenser-water system
Cooling Tower Fan (Inverter)
Cooling
Tow er
Water Sump
Tower Water
Recirculation
Pump
Chiller 2
Chiller 1
(Inverter)
(Inverter)
CDWP-1
CDWP-2