EVAPCO has introduced the newest addition to its ESW closed-circuit evaporative cooler line, the single cell, 14-by-22-foot “Big Box” ESW4 — now with up to 40% higher capacity than the 12-by-18-foot ESWB.  The ESW4 is offered in more than 130 models with capacities between 270-670 nominal tons, and with fan motor sizes of 20-100 hp.  The new ESW4 was designed to provide optimal capacity and energy efficiency in EVAPCO’s single, largest closed-circuit cooler cell. The unit was developed specifically for high tonnage applications such as data centers, process cooling, and large HVAC application where the least amount of energy is consumed by the fewest number of units, connections, and fans.