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. 10, 2024
Filed:
Mar. 28, 2022
Trane International Inc., Davidson, NC (US);
Don A. Schuster, Lindale, TX (US);
Prabakaran Chezhian, Tamil Nadu, IN;
Logenthiran Vazhmuni, Tamil Nadu, IN;
Trane International Inc., Davidson, NC (US);
Abstract
Example embodiments of the present disclosure relate to a heat pump including a system or method for detecting a fault in the heat pump. Some embodiments include a method for detecting a switch over valve fault where the heat pump includes a refrigerant cycle, a compressor, a first heat exchanger, a second heat exchanger, and a switch over valve, and the method includes operating the HVAC system in one of a heating mode or a cooling mode, monitoring first, second, and third refrigerant parameters associated with the refrigerant circuit using first, second, and third refrigerant sensors, determining first and second refrigerant inputs based on the first, second, and third second refrigerant parameters, and determining a refrigerant circulation mode by comparing the first refrigerant input to the second refrigerant input to provide an indication of whether the refrigerant is circulating in the heating mode or the cooling mode.