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Thank you for your purchase of EVAPCO’s Water Saver (EWS), a capacitive deionization pretreatment system. Water Saver
systems are constructed using the highest quality materials and workmanship. Evaporative cooling equipment is often the main
water consumer for a building or process. The Water Saver improves an evaporative unit’s water quality and is designed to
provide years of reliable service when properly maintained.
Qualified personnel should use proper care, procedures, and tools when operating, maintaining, or repairing this equipment in
order to prevent personal injury and/or property damage. The warnings listed below are to be used as guidelines only.
The Water Saver is an electrical device. Use caution when working on or near the Water Saver.
Electrical Hazard – Service and troubleshooting to be completed by trained and authorized service
professionals only.
The Water Saver is an environmentally responsible pretreatment system that offers the following benefits:
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Improves Evaporative Cooling Water Efficiency by Increasing Operating Cycles of Concentration
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Reduces Blowdown and Treatment Chemicals Sent to Drain
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Low Cost of Ownership
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75-85% Recovery Rate
Standard Equipment and Operation
The Water Saver system is comprised of a control panel, ion removal cylinders, flow sensor, conductivity probes and
interconnecting valves and piping. A nameplate indicating the model number, part number, and serial number is located on the
side of the Control Panel. A 12- cylinder Water Saver (EWS-34) is shown in Figure 1.
The Water Saver is available in nine different cylinder arrangements, engineered to produce a target gal/min of lower
conductivity makeup water to the evaporative unit. Systems come in 4, 6, 8, 9, 12, 15, 18, 20, 24-cylinder designs. Available
voltage configurations are 230V, 3-phase, 3-wire (delta), or 480V, 3-phase, 4-wire (WYE). 480V applications may require a
transformer. Refer to Figure 2 for a basic component schematic.
Figure 1: Evapco Water Saver 12-Cylinder Pretreatment Skid
Introduction
Safety Precautions
Water Saver System Overview
