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:
Mar. 05, 2019
Filed:
Jan. 22, 2016
Lennox Industries Inc., Richardson, TX (US);
John Tran, The Colony, TX (US);
Thomas Pate, Jr., Frisco, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
A temperature control method includes obtaining, by a controller, a space temperature value, a space temperature set point, a discharge air temperature value, and a discharge air temperature set point. The method further includes determining a compressor speed using a first PI loop based on the space temperature set point and the space temperature value, and determining a supply fan speed using a second PI loop based on the discharge air temperature set point and the discharge air temperature value. The temperature control method further includes outputting a first control signal that controls the speed of a variable speed compressor based on the determination of whether the compressor speed is within the compressor operation range and a second control signal to control the speed of a variable speed supply fan based on the determination of whether the supply fan speed is within the supply fan operation range.