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.

Date of Patent:
Sep. 27, 2022

Filed:

Apr. 23, 2019
Applicant:

Carrier Corporation, Palm Beach Gardens, FL (US);

Inventors:

YuHui Kuang, Shanghai, CN;

QiaoHui Shi, Shanghai, CN;

Assignee:

CARRIER CORPORATION, Palm Beach Gardens, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 11/63 (2018.01); F24F 11/77 (2018.01); F24F 11/84 (2018.01); F24F 5/00 (2006.01); G05B 19/4155 (2006.01); G05D 7/06 (2006.01); F24F 110/10 (2018.01);
U.S. Cl.
CPC ...
F24F 11/63 (2018.01); F24F 5/0003 (2013.01); F24F 11/77 (2018.01); F24F 11/84 (2018.01); G05B 19/4155 (2013.01); G05D 7/0635 (2013.01); F24F 2110/10 (2018.01); G05B 2219/2614 (2013.01);
Abstract

The present application discloses a control method for an HVAC system in a relatively large spatial place and the HVAC system. The HVAC system comprises an air handling unit, and the air handling unit is provided with a valve through which a fluid medium passes and a fan; and the method comprises: monitoring a return air temperature of air circulated back to the air handling unit; providing a return air temperature setpoint of the HVAC system; and performing decoupling adjustment on one of the fan and the valve, and then adjusting the other of the fan and the valve so that the return air temperature is close to the return air temperature setpoint. According to the present application, the HVAC system can operate in a steady and energy-saving way.


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