Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: An improved biogenic ionizer with reduced acoustics and air entrainment is disclosed. The ionizer has a cation and anion generator connectable to a power source and utilizes needle point bipolar ionization to generate anions at a first set of electrodes and cations at a second set of electrodes. The electrodes are located on a first and second side of an air flow separator. The air flow separator is divided into a first air flow path way and a second airflow pathway which are at least partially separated from each other by a divider extending at least partially along the airflow separator. Discharged air through separated passages has a first air stream ionized substantially by cations and a second air stream ionized substantially with anions.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: A frameless HVAC door system for reduced noise transmission leakage, and improved installation. The system includes a first member having opposed first and second surfaces and a first size that defines a first perimeter extending around the first and second surfaces. The first member is further equipped with a latch spaced apart from a hinge member on the first member. The door further includes a second member mounted on the first member first surface. The second member includes a sidewall extending around the second member to define a second member perimeter. The second member further includes a second member surface extending between the side walls and along the second member perimeter to define a compartment. The compartment is insulated against noise and temperature change. The second member perimeter is smaller than the first member perimeter, which defines a flange extending from the second member perimeter to the first member perimeter to define a flange perimeter.

Abstract: A frameless HVAC door system for reduced noise transmission leakage, and improved installation. The system includes a first member having opposed first and second surfaces and a first size that defines a first perimeter extending around the first and second surfaces. The first member is further equipped with a latch spaced apart from a hinge member on the first member. The door further includes a second member mounted on the first member first surface. The second member includes a sidewall extending around the second member to define a second member perimeter. The second member further includes a second member surface extending between the side walls and along the second member perimeter to define a compartment. The compartment is insulated against noise and temperature change. The second member perimeter is smaller than the first member perimeter, which defines a flange extending from the second member perimeter to the first member perimeter to define a flange perimeter.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

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 and apparatus for modular building utilities systems and assemblies for a building are provided. A modular system may include a first assembly having a duct, inlet piping, and outlet piping coupled via a bracket in a first positional relationship, where the inlet piping and outlet piping are disposed exterior to the duct. The modular system may also include a second assembly that may also have a duct, inlet piping, and outlet piping coupled via a bracket in a second positional relationship, where the inlet piping and outlet piping are also disposed exterior to the duct. The first positional relationship of the first assembly and the second positional relationship of the second assembly may provide alignment between the respective ducts, inlet piping, and outlet piping to facilitate coupling of the first and second assemblies.

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: Methods and apparatus for modular building utilities systems and assemblies for a building are provided. A modular system may include a first assembly having a duct, inlet piping, and outlet piping coupled via a bracket in a first positional relationship, where the inlet piping and outlet piping are disposed exterior to the duct. The modular system may also include a second assembly that may also have a duct, inlet piping, and outlet piping coupled via a bracket in a second positional relationship, where the inlet piping and outlet piping are also disposed exterior to the duct. The first positional relationship of the first assembly and the second positional relationship of the second assembly may provide alignment between the respective ducts, inlet piping, and outlet piping to facilitate coupling of the first and second assemblies.

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: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.

Abstract: Methods and apparatus for modular building utilities systems and assemblies for a building are provided. A modular system may include a first assembly having a duct, inlet piping, and outlet piping coupled via a bracket in a first positional relationship, where the inlet piping and outlet piping are disposed exterior to the duct. The modular system may also include a second assembly that may also have a duct, inlet piping, and outlet piping coupled via a bracket in a second positional relationship, where the inlet piping and outlet piping are also disposed exterior to the duct. The first positional relationship of the first assembly and the second positional relationship of the second assembly may provide alignment between the respective ducts, inlet piping, and outlet piping to facilitate coupling of the first and second assemblies.

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: The invention comprises a method for controlling quality in a piping system, including a valve and a piping structure coupled to the valve. The method comprises the following: pressurize the piping structure with a gas at greater than sea-level pressure; seal the gas in the piping structure with the valve; determine whether the gas stays within the piping structure; determine that gas leaks from the piping structure; and identify the location of a leak from the piping structure. The invention further comprises a method for identifying a component. The method comprises the following: indicate identification information on a tag regarding the piping structure; and attach the tag to the piping structure.

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.