Method for controlling a multi-zone forced air HVAC system...

Details Method for controlling a multi-zone forced air HVAC system... Method for controlling a multi-zone forced air HVAC system...

2011-06-28

2011-06-28

Norman, Marc E (Department: 3744)

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

C165S212000, C165S237000, C700S277000

Reexamination Certificate

active

07967218

ABSTRACT:
In a multi-zone control system for central forced air HVAC systems where the minimum conditioned airflow produced by the HVAC equipment significantly exceeds the airflow capacity to many of the zones, the invention is an energy saving method for choosing non-calling zones to receive excess airflow in. When satisfying calls for conditioning from one or a few zones, excess conditioned airflow is directed to non-calling zones. The method chooses occupied non-calling zones using a priority that provides comfort, and chooses unoccupied non-calling zones using a different priority that provides energy savings. Limits are provided for each zone to prevent excessive over conditioning in non-calling zones.

REFERENCES:
patent: 6865449 (2005-03-01), Dudley
patent: 6983889 (2006-01-01), Alles
patent: 6997390 (2006-02-01), Alles
patent: 7062830 (2006-06-01), Alles
patent: 7775448 (2010-08-01), Votaw et al.
patent: 7789317 (2010-09-01), Votaw et al.

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