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:
Sep. 12, 2017
Filed:
Mar. 21, 2014
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventors:
Der-Kai Hung, Dallas, TX (US);
Harold Gene Havard, Jr., Carrollton, TX (US);
Rosa Maria Leal, Irving, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01);
U.S. Cl.
CPC ...
F25B 49/022 (2013.01); F25B 49/027 (2013.01); F25B 2400/075 (2013.01); F25B 2600/0251 (2013.01); F25B 2600/0271 (2013.01); F25B 2600/111 (2013.01); F25B 2600/23 (2013.01); F25B 2700/195 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21152 (2013.01); Y02B 30/743 (2013.01);
Abstract
The present invention provides for a control system for operating a heating, ventilation, and air conditioning (HVAC) system. A controller operates compressors in tandem. In response to detection of a high pressure condition in refrigerant flowing through a high pressure side of the HVAC system, the controller operates the HVAC system with a first compressor on and a second compressor off.