Usage monitoring HVAC control method

Details Usage monitoring HVAC control method Usage monitoring HVAC control method

2007-10-29

2011-12-13

Decady, Albert (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C700S237000

Reexamination Certificate

active

08078325

ABSTRACT:
Systems and methods are described for a usage monitoring HVAC control method. A method, includes: receiving a request for an additional period of heating ventilation and air conditioning system services from a requesting system user, the requesting system user composing a plurality of system users; maintaining a data structure in an on board memory of a programmable thermostat, the data structure including a list of time entries, each time entry associated with one of the plurality of system users; and updating the data structure by adding a duration in units of time to the time associated with the requesting system user.

REFERENCES:
patent: 5289362 (1994-02-01), Liebl et al.
patent: 5958016 (1999-09-01), Chang et al.
patent: 6741915 (2004-05-01), Poth
patent: 2001/0020644 (2001-09-01), Gauthier et al.

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