 Water Distribution System
Another important part of a closed circuit cooler is the water distribution section. The coil must be thoroughly and completely drenched with water at all times to give the maximum heat transfer and to minimize scaling. The EVAPCO system does this by circulating 6 gallons of water per minute over every square foot (4 liters per second over each square meter) of coil face area.
The water distribution system is greatly simplified in EVAPCO units with the largest non-clog water diffusers available for closed circuit coolers. The diffusers are threaded into the water distribution header to ensure correct positioning. Also, a collar on the diffuser extends into the header and acts as a sludge ring to reduce the need for maintenance. Excellent flodding of the coil is maintained at all times withour numerous small orifice nozzles or complicated troughs.
For corrosion protection, the diffusers are made of ABS plastic and distributor pipes are noncorrosive Polyvinyl Chloride (PVC).
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The LSWA Closed Circuit Cooler product line is a highly efficient design constructed for long life and minimum maintenance and features EVAPCO's patented, high efficiency Thermal-Pak® Coil. It is the ideal choice for forced draft replacement applications, low sound and indoor installations. The LSWA engineered design features are described below.