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:
Feb. 03, 2015
Filed:
Jan. 27, 2010
Carlos O. Chamorro, Plano, TX (US);
Roger C. Hundt, Carrollton, TX (US);
John P. Stachler, Plano, TX (US);
Stephen A. Walter, Flower Mound, TX (US);
Carlos O. Chamorro, Plano, TX (US);
Roger C. Hundt, Carrollton, TX (US);
John P. Stachler, Plano, TX (US);
Stephen A. Walter, Flower Mound, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
An HVAC controller, a method of operating an HVAC controller and an HVAC system employing the controller or the method. In one embodiment, the HVAC controller includes: (1) a processor couplable to at least two refrigerant pressure sensors via separate data paths to receive input signals therefrom and further couplable to a compressor stage and a condenser fan to provide output signals thereto and (2) memory coupled to the processor and configured to store a software program capable of causing the processor to command the compressor stage and the condenser fan to turn on irrespective of a state of an input signal generated by either of the at least two refrigerant pressure sensors and generate alternative error messages at least partially depending upon whether or not a high pressure shutdown occurs after the processor commands the compressor stage and the fan to turn on.