Industrial Heating, Ventilating, Air Conditioning and Refrigeration (HVAC-R) Systems comprised of air conditioners, heat pumps, chillers, furnaces, boilers; steam, water, refrigerant or liquid coils or heat exchangers, pumps, compressors, condensers, liquid expansion devices, evaporators, sensors, gauges, monitors, control and/or safety devices, fans, piping, valves, ducting; air, refrigerant, water, steam or gas valves, liquid or air filters, control valves, control circuits, power circuits, power control devices, sequence and operational controllers, enclosures, and mounting frames, all sold as part of HVAC-R systems

Custom manufacture of industrial equipment for others, namely, Heating, Ventilating, Air Conditioning and Refrigeration (HVAC-R) Systems