period one
Types of Water Chillers
notes
air-cooled or water-cooled
Maintenance
▲Water treatment
▲Condenser tube brushing
▲Tower maintenance
▲Freeze protection
▲Makeup water
coolingtower
Figure 10
A major advantage of using an air-cooled chiller is the elimination of the cooling tower. This eliminates the concerns and maintenance requirements associated with water treatment, chiller condenser-tube cleaning, tower mechanical maintenance, freeze protection, and the availability and quality of makeup water. This reduced maintenance requirement is particularly attractive to building owners because it can substantially reduce operating costs.
Systems that use an open cooling tower must have a water treatment program. Lack of tower-water treatment results in contaminants such as bacteria and algae. Fouled or corroded tubes can reduce chiller efficiency and lead to premature equipment failure.
