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:
Nov. 26, 2019
Filed:
Feb. 15, 2017
Haier Us Appliance Solutions, Inc., Wilmington, DE (US);
Mike Fradkin, Louisville, KY (US);
Zachary Chapin, Louisville, KY (US);
Haier US Appliance Solutions, Inc., Wilmington, DE (US);
Abstract
A packaged terminal air conditioner unit (PTAC) and methods of operating the same are provided. The PTAC includes a bulkhead having a vent aperture through which an auxiliary fan urges a flow of make-up air into the room and a vent door for controlling the flow of make-up air. A method for detecting the position of the vent door includes operating the auxiliary fan at a first power level to reach a target speed, switching the position of the vent door, and operating the auxiliary fan at a second power level to maintain the target speed. The first power level and the second power level are compared to determine whether the vent door is in the open position or the closed position, with an increased power level indicating that the door is closed and a decreased power level indicating that the door is open.