Abstract: This invention relates to HVAC systems, zone control units, and control systems. More specifically, an HVAC system employs distributed zone control units that provides localized air recirculation. A zone control unit includes a return air section that receives return air from serviced building zones and mixes the return air with a supply of outside air. The mixed air is heated and/or cooled by the zone control unit and discharged to serviced building zones in a controlled manner. An exhaust air system is used to extract air from serviced building zones. The HVAC zone control unit also includes a local control unit with an Internet protocol address. The local control unit includes a memory and a processor for storing and executing a control program for the zone control unit. The control program controls of the zone control unit in response to commands received via the Internet.

Abstract: Methods for installing one or more heating, ventilation, and air conditioning (HVAC) units in an HVAC system include the steps of securing inlet and outlet piping assemblies of the HVAC unit to a bracket, coupling a thermal transfer mechanism of the HVAC unit with the inlet piping assembly and the outlet piping assembly, fluidly coupling a water pump with the thermal transfer mechanism, the inlet piping assembly, or the outlet piping assembly, mounting the HVAC unit by mounting the bracket to the HVAC system, and maintaining alignment of the HVAC unit thermal transfer mechanism, the HVAC unit inlet piping assembly, and the HVAC unit outlet piping assembly while mounting the HVAC unit in the HVAC system. An HVAC unit can include a thermal transfer mechanism, inlet and outlet piping assemblies, a water pump, and a bracket.

Abstract: HVAC systems, zone control units, and control systems are provided. An HVAC system employs distributed zone control units that provides for localized air recirculation. A zone control unit can include a return air section that receives return air from serviced building zones and can mix the return air with a supply of outside air. The mixed air can be heated and/or cooled by the zone control unit and discharged to serviced building zones in a controlled manner. An exhaust air system can be used to extract air from serviced building zones. An HVAC zone control unit can include a local control unit with an Internet protocol address. The local control unit can include a memory and a processor for storing and executing a control program for the zone control unit. The control program can control of the zone control unit in response to commands received via the Internet.

Abstract: HVAC systems, zone control units, and control systems are provided. An HVAC system employs distributed zone control units that provides for localized air recirculation. A zone control unit can include a return air section that receives return air from serviced building zones and can mix the return air with a supply of outside air. The mixed air can be heated and/or cooled by the zone control unit and discharged to serviced building zones in a controlled manner. An exhaust air system can be used to extract air from serviced building zones. An HVAC zone control unit can include a local control unit with an Internet protocol address. The local control unit can include a memory and a processor for storing and executing a control program for the zone control unit. The control program can control of the zone control unit in response to commands received via the Internet.

Abstract: HVAC systems, zone control units, and control systems are provided. An HVAC system employs distributed zone control units that provides for localized air recirculation. A zone control unit can include a return air section that receives return air from serviced building zones and can mix the return air with a supply of outside air. The mixed air can be heated and/or cooled by the zone control unit and discharged to serviced building zones in a controlled manner. An exhaust air system can be used to extract air from serviced building zones. An HVAC zone control unit can include a local control unit with an Internet protocol address. The local control unit can include a memory and a processor for storing and executing a control program for the zone control unit. The control program can control of the zone control unit in response to commands received via the Internet.

Abstract: HVAC systems, zone control units, and control systems are provided. An HVAC system employs distributed zone control units that provides for localized air recirculation. A zone control unit can include a return air section that receives return air from serviced building zones and can mix the return air with a supply of outside air. The mixed air can be heated and/or cooled by the zone control unit and discharged to serviced building zones in a controlled manner. An exhaust air system can be used to extract air from serviced building zones. An HVAC zone control unit can include a local control unit with an Internet protocol address. The local control unit can include a memory and a processor for storing and executing a control program for the zone control unit. The control program can control of the zone control unit in response to commands received via the Internet.