Fluid Coolers and Pump Stations

The idea goes back to 1993, when Hiross, Inc. filed the Ecosystem trademark for a closed-circuit heat exchanger, pump-driven circulation circuit and controls sold as one unit for cooling air compressors and other industrial equipment. The WAC Series is the catalogued descendant; the engineered fluid coolers and pump stations that the line's current manufacturer builds under the IPAC name are the scaled-up one.

A fluid cooler is a copper-tube, aluminum-fin coil with fans, sized for the heat load at the design ambient with the glycol percentage the site needs for freeze protection. The pump station is a self-contained skid - single or dual pumps for standby, a NEMA 4 control enclosure, expansion tank and bypass control - on a rugged C-channel frame. Published range is 10,000 BTU/hr to over 6,000,000 BTU/hr for the cooler, with the pump station matched to the loop's flow and head. Each package is engineered to the customer's construction materials, system layout and site environment; there is no model table.

The duty data are the same as for a WAC: heat load, loop flow and required supply temperature, design ambient, glycol type and percentage, the run to the equipment and its head loss, and whether a standby pump is wanted. Where a WAC-size unit will do, the WAC Series page lists the nine standard packages.