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:
Jun. 21, 2022

Filed:

Sep. 18, 2016
Applicant:

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

Inventors:

Tathagata De, Charlotte, NC (US);

Alberto Vecchiotti, Charlotte, NC (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 47/00 (2006.01); F25B 49/02 (2006.01); F25D 21/04 (2006.01); F25B 25/00 (2006.01); F25B 49/00 (2006.01); F25D 21/02 (2006.01);
U.S. Cl.
CPC ...
F25B 47/006 (2013.01); F25B 25/005 (2013.01); F25B 49/005 (2013.01); F25B 49/02 (2013.01); F25D 21/02 (2013.01); F25D 21/04 (2013.01); F25B 2339/047 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/1332 (2013.01); F25B 2700/21173 (2013.01); F25B 2700/21175 (2013.01);
Abstract

A system and method of freeze protection for a chiller including a metering device in flow communication with a condenser, a controller in electrical communication with the metering device, wherein the controller is configured to determine whether the difference between the fluid characteristic of the first liquid and the fluid characteristic of the second liquid is greater than a freezing limit, and enter a freeze protection mode if the difference between the fluid characteristic of the first liquid and the fluid characteristic of the second liquid is greater than the freezing limit.


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