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The LRWB Closed Circuit Cooler product line is a combination of EVAPCO’s extensive forced draft evaporative cooling product experience and engineered solutions design philosophy. Using EVAPCO's patented, high-efficiency THERMAL-PAK® coil, the LRWB is the most efficient, quietest, and easiest forced-draft cooler in the industry to maintain and operate. All units are designed with IBC Compliant construction and CTI Certified Thermal Performance. The LRWB’s engineered design features are described below.
Principle of Operation

The process fluid is circulated through the coil of the closed circuit cooler. Heat from the process fluid is dissipated through the coil tubes to the water cascading downward over the tubes. Simultaneously air is blown through the unit by the fans and travels upward over the coil opposite the water flow. A small portion of the water is evaporated which removes the heat. The warm moist air is forced to the top of the closed circuit cooler by the fan and is discharged to the atmosphere. The remaining water falls to the sump at the bottom of the cooler where it is re-circulated by the pump up through the water distribution system and back down over the coils.