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HVAC system and zone control unit

  • US 9,677,777 B2
  • Filed: 06/02/2010
  • Issued: 06/13/2017
  • Est. Priority Date: 05/06/2005
  • Status: Active Grant
First Claim
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1. A plurality of prefabricated distribution assemblies configured for use in an Heating, Ventilation, and Air Conditioning (“

  • HVAC”

    ) system providing HVAC to zones of a building, the HVAC system having a plurality of distributed Zone Control Units (“

    ZCUs”

    ), each of the ZCUs locally providing HVAC to a respective subset of the zones, each prefabricated distribution assembly having a length and the plurality of prefabricated distribution assemblies comprising;

    a first discrete prefabricated distribution assembly and a second discrete prefabricated distribution assembly;

    wherein the first and second discrete prefabricated distribution assemblies each comprise;

    a length of duct having first and second ends, the duct configured to transport a flow of supply air from the first end to the second end;

    a plurality of brackets coupled with the length of duct, the brackets comprising mounting features; and

    a supply line configured to supply a fluid to a heat exchanging coil of one or more of the distributed ZCUs, the supply line having a first open end and a second open end; and

    a return line configured to return the fluid from the heat exchanging coil of one or more of the distributed ZCUs, the return line having a first open end and a second open end;

    wherein the supply and return lines supported by at least one of the mounting features,wherein the first end of the length of duct of the first discrete prefabricated distribution assembly is configured to couple with the second end of the length of duct of the second discrete prefabricated distribution assembly to provide for the transport of the flow of supply air along a combined length of the first discrete prefabricated distribution assembly and the second discrete prefabricated distribution assembly; and

    ;

    wherein the first open end of the supply line of the first discrete prefabricated distribution assembly is configured to couple with the second open end of the supply line of the second discrete prefabricated distribution assembly for the transport of the supply fluid along the combined length of the first discrete prefabricated distribution assembly and the second discrete prefabricated distribution assembly; and

    wherein the first open end of the return line of the first discrete prefabricated distribution assembly is configured to couple with the second open end of the supply line of the second discrete prefabricated distribution assembly for the return of the fluid along the combined length of the first discrete prefabricated distribution assembly and the second discrete prefabricated distribution assembly, andwherein the prefabricated distribution assemblies comprise mounting surfaces to mount the prefabricated distribution assemblies to the building.

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