IES

commercial, industrial and residential heating, ventilation, air-conditioning and make-up air machines; cooling, energy recovery and air handling systems, namely, heat wheels, energy wheels, dessicant wheels, plate exchangers, cross flow exchangers, energy transfer devices, heating and cooling coils, evaporative sections, louvers, screens, filters, hoods, fans, condensers, dampers, ducting, valves, pumps, sumps, floats, socks, traps, evaporative cooling media, control boxes, and parts therefor