11 Heating and cooling systems for use in the heating and cooling of residential and commercial buildings comprised primarily of coolers, chillers, boilers, geothermal heaters/chillers, pumps, valves, sensors, piping, wiring, controls, equipment optimization software, and control and monitoring software, all sold as a unit; heat recovery systems for use in the recovery of heat otherwise lost in the heating and/or cooling of residential and commercial buildings comprised primarily of chillers, pumps, valves, sensors, piping, wiring, controls, and control and monitoring software, all sold as a unit; parts of heating, cooling, and heat recovery systems for use in the heating and cooling of residential and commercial buildings or in the recovery of heat otherwise lost in the heating and/or cooling of residential and commercial buildings, namely, coolers, chillers, boilers, geothermal heaters/chillers, pumps, valves, and piping; systems for the treatment and/or disposal of wastewater and sewage obtained from municipalities, utilities, institutions, commercial buildings, or homes within residential neighborhoods comprised primarily of storage tanks, septic tanks, grinders, pumps, filters, motors, controls, piping, fiberglass enclosures, bio-filters, peat fiber, gravel pads and trenches, prepackaged clean water booster stations, software and computer hardware for communications, control, and monitoring of wastewater and sewage equipment, software and computer hardware for Internet and telephony monitoring of wastewater and sewage equipment, software and computer hardware for data collection from wastewater and sewage equipment, software and computer hardware for providing alarm status, and prepackaged SCADA (Supervisory Control and Data Acquisition) systems comprised primarily of computers and computer hardware, all sold as a unit; parts of systems for use in the treatment and/or disposal of wastewater and sewage obtained from municipalities, utilities, institutions, commercial buildings, or homes within residential neighborhoods, namely, storage tanks, septic tanks, grinders, pumps, filters, motors, piping, fiberglass enclosures, bio-filters, peat fiber, gravel pads and trenches, and prepackaged clean water booster stations