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Method and apparatus for reducing energy consumption in heating, ventilating, and air conditioning of unoccupied building zones

  • US 20020134849A1
  • Filed: 03/04/2002
  • Published: 09/26/2002
  • Est. Priority Date: 03/02/2001
  • Status: Abandoned Application
First Claim
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1. An apparatus for reducing energy consumption, said apparatus comprising:

  • at least one occupancy detection device for generating an occupancy signal that is representative of an occupancy of a monitored zone;

    at least one relay for being disposed along a heating, ventilation or cooling circuit, where said circuit includes a thermostat having a thermostat setpoint; and

    a control circuit, coupled to said at least one occupancy detection device, for receiving said occupancy signal and for causing said at least one relay to interrupt operation of said thermostat if said occupancy signal indicates that said monitored zone is unoccupied.

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