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. 28, 2018
Filed:
Jun. 17, 2013
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventors:
Jonathan Douglas, Richardson, TX (US);
Herman M. Thomas, Richardson, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 23/00 (2006.01); F24F 11/30 (2018.01); F24F 110/00 (2018.01); F24F 110/30 (2018.01); F24F 110/40 (2018.01); F24F 140/40 (2018.01); F24F 11/52 (2018.01);
U.S. Cl.
CPC ...
G05D 23/00 (2013.01); F24F 11/30 (2018.01); F24F 11/52 (2018.01); F24F 2110/00 (2018.01); F24F 2110/30 (2018.01); F24F 2110/40 (2018.01); F24F 2140/40 (2018.01);
Abstract
In one aspect, the present disclosure provides a controller for a HVAC system having an economizer with a damper and pressure sensors on opposing sides of the economizer. The controller comprise a diagnostics controller having a program configured to use pressure difference sensor data to determine if a pressure difference across the economizer is outside an operational design parameter of the HVAC system, and generate an error signal when the pressure difference is outside the operational design parameter.