REP - Evapco

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TWO CELL END INLET COOLING TOWERS IDEAL REPLACEMENT FOR CROSSFLOW UNITS MODELS REP 217-111 TO REP 224-920 / 367-1600 NOMINAL TONS LOW INSTALLATION COSTS - CONTRACTOR SAVINGS The REP’s fit tight enclosures and match up with crossflow layouts, piping, and steel, while still offering the maintenance and operational advantages of EVAPCO’s induced draft counterflow cooling towers. Layout Savings The REP counterflow method of heat transfer is the most efficient in the industry, resulting in a plan area up to 35% less than a comparable sized crossflow tower. The REP’s smaller plan area enables it to be located in smaller, less costly enclosures. REP units draw air from all four sides, so it is ideal for tight replacement projects. The REP can be placed close to a surrounding wall with little or no effect on unit capacity. The REP ’s are ideal for matching existing crossflow layouts. Piping Savings All piping connections are on one end, thereby reducing piping costs and installation time. Conventional doubleflow crossflow cooling towers require two water inlet connections per cell. The counterflow REP design requires only one inlet connection per cell, thereby significantly reducing the expensive piping, piping support and flow balancing valves required with the crossflow design. The pressurized water distribution system in REP units do not require flow balancing valves. Typical (2) Cell Crossflow Piping REP Simplified Piping Steel Savings The two cell REP units may be supported in two ways - see Option A and B below. In Option A, the two cells are supported by three steel “I” beams running the entire length of the units. In Option B, the two cells are supported by two steel “I” beams running across the width of the cells. Option B matches the typical crossflow supporting steel arrangement. This flexibility enables REP units to sit on the existing structural steel for most replacement projects, thereby resulting in lower installation costs. Option A Option B UNIT OUTLINE UNIT OUTLINE STRUCTURAL BEAM STRUCTURAL BEAM Operating Weight Savings The operating weight of REP units are approximately 35% less than conventional crossflow cooling towers. Due to the REP basin design and smaller plan area, less water is held in the unit during normal operation. Therefore, the structural support costs are reduced, and it is possible to locate the REP on a lighter roof, providing greater location flexibility. 2
TWO CELL END INLET COOLING TOWERS IDEAL REPLACEMENT FOR CROSSFLOW UNITS MODELS REP 217-111 TO REP 224-920 / 367-1600 NOMINAL TONS LOW OPERATING COSTS - OWNER SAVINGS Horsepower Savings The fan motor horsepower of REP Cooling Towers is typically equal to or less than other manufacturers’ fan motor horsepower. Reduced horsepower selections can save thousands of dollars in energy costs per year. The two cell REP’s have two fan motors, thereby providing mechanical redundancy and multiple steps of capacity control. For additional energy savings, two speed motors are recommended. When replacing centrifugal fan cooling towers, REP units will typically reduce the horsepower by as much as 50%. Maintenance Savings REP units have the most serviceable cold water basin in the industry. Removal of the light-weight inlet louvers provides easy access to all four sides of the basin for maintenance. Access to the fan and water distribution system is from the side of the unit. Routine maintenance can be safely performed by standing on the EVAPCO fill, which acts as a working platform. Totally enclosed fan motors are positioned for external access. Belt tensioning is performed from the outside of the unit. Bearing lube lines are also extended to the outside of the unit for easy service. Maintenance on REP towers is simple and easy. Maintenance costs are kept to a minimum. Water & Chemical Savings The stair step design of the REP pan basin significantly reduces the water volume in the unit (up to 35%) compared to crossflow equipment. The drift rate for REP Towers is less than .001% of the recirculated water rate. The typical crossflow drift rate is .005%. For a 500 ton tower, EVAPCO’s annual water savings from drift alone is 14,976 gallons. Also, the two pass inlet louver design eliminates splashout and water loss. The induced draft counterflow REP design with the two pass inlet louvers block direct sunlight from entering the unit, thereby reducing the potential for algae formation and reducing chemical costs. Exclusive Five Year Warranty All EVAPCO REP units come with a standard five year motor and drive warranty. Included are all drive components on belt and gear drive units. This unique warranty is designed to offer the end user optimum protection against fan drive and motor failure. REP units with stainless steel construction also have an exclusive Five Year complete product warranty. LOW INSTALLATION COST + LOW OPERATING COST = REP TOWERS: THE IDEAL REPLACEMENT TOWER 3
Page 1: ® C O O L I N G T O W E R S IDEAL
Page 5 and 6: THERMAL PERFORMANCE REP 217-111 to
Page 7 and 8: THERMAL PERFORMANCE REP 224-018 to
Page 9 and 10: APPLICATIONS System Design REP Cool
Page 11 and 12: MECHANICAL SPECIFICATIONS Furnish a

REP - Evapco

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