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Direct Evaporative Cooling Put simply, whenever water is evaporated, heat is absorbed. This basic principle underlies the design of the MasterCool direct evaporative cooler. High Quality Construction Hot-dipped galvanized steel, welded for maximum strength is combined with our exclusive POLYBOND® finish that protects the whole system – cabinet pans, distributor covers, louvers, and all other parts contacting water. The electrostatically applied polyester epoxy powder-based coating is cured at high temperature and is so durable that these models are backed by the best warranty in the industry. Energy Efficient... Environmentally Friendly With no compressors or condensors, MasterCool evaporative coolers offer significant energy savings over mechanical refrigeration units; and, with no CFC’s, do not contribute to depletion of the ozone layer. Their air washing effect improves indoor air quality with fresh, filtered air constantly brought into the cooled space...forcing stale air out. Comfort Levels Not only does evaporative cooling lower the temperature in the space to be cooled, it also lowers the temperature you feel. Rapid air movement produced by the MasterCool increases skin evaporation which causes you to feel 3-5° effectively cooler than the temperature read from a thermometer. Evaporative cooling can provide effective temperatures acceptable in most commercial/ industrial applications throughout the world. Typical Applications The Industrial MasterCool is used for area cooling or spot cooling. In many areas it can replace or supplement mechanical refrigeration needs in agricultural, institutional, commercial, and industrial applications. Applications such as kitchens, laundries, gymnasiums, heat treating areas, and dry cleaning plants requiring large quantities of fresh air moving through the building are ideal candidates for evaporative cooling. 2-STAGE INDUSTRIAL EVAPORATIVE COOLING Indirect/Direct Evaporative Cooling Process In the indirect cooling stage, entering air is cooled along a horizontal humidity ratio line on the Psychrometric Chart (A to B) without adding moisture. In the next cooling stage, this air is further cooled along a new wet-bulb line (B to C), resulting in a lower dry-bulb temperature of leaving air than can be achieved with single stage direct evaporative cooling alone. Typical Confi gurations Many configurations of 2-Stage Industrial MasterCool are possible. Typical field-assembled components include 2 or 3 Indirect Cooling Modules with Models MD/MS524 and 4 or 6 ICM’s with models MD/MS/ MU628 Contact your local MasterCool representative for assistance in sizing. Models shown with three ICM’s at each inlet location. The Indirect Cooling Module Outside air is drawn into the ICM. A fan draws air through the inside of vertical fi ns (which have water running inside them). The air picks up heat and is expelled from the ICM while the fins are cooled by evaporation. Other outside air is drawn across the outside surfaces o...

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