The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2024
Filed:
Jan. 22, 2024
Robert J. Mowris, Olympic Valley, CA (US);
James Lau, Tustin, CA (US);
Robert J. Mowris, Olympic Valley, CA (US);
John Walsh, Bozeman, MT (US);
Abstract
An occupancy fan control method to detect a Heating, Ventilating Air Conditioning (HVAC) fan is operating based on a fan-on duration control selected by a user and after a fan-on time delay selected by the user, providing at least one fan-on alarm message prior to overriding the fan-on duration control. The method further comprises monitoring an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and after the fan-on time delay selected by the user, automatically overriding the fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise operating the HVAC fan based only on a thermostat call for cooling or heating, operating the HVAC fan for a non-zero time less time than the fan-on duration control, or operating the HVAC fan for a non-zero frequency less than the fan-on duration control.