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:
Mar. 03, 2020

Filed:

Jan. 19, 2017
Applicant:

Liebert Corporation, Columbus, OH (US);

Inventors:

Zhiyong Lin, Dublin, OH (US);

Martin Hrncar, Trencin, SK;

Assignee:

Vertiv Corporation, Columbus, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F 11/30 (2018.01); F25B 49/02 (2006.01); G05B 23/02 (2006.01); F25B 41/04 (2006.01); F25B 1/10 (2006.01); F24F 11/32 (2018.01);
U.S. Cl.
CPC ...
F24F 11/30 (2018.01); F25B 1/10 (2013.01); F25B 41/04 (2013.01); F25B 41/043 (2013.01); F25B 49/02 (2013.01); G05B 23/0245 (2013.01); F24F 11/32 (2018.01); F25B 2400/06 (2013.01); F25B 2500/06 (2013.01); F25B 2500/22 (2013.01); F25B 2600/02 (2013.01); F25B 2600/11 (2013.01); F25B 2600/13 (2013.01); F25B 2600/21 (2013.01); F25B 2700/195 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21152 (2013.01); Y02B 30/745 (2013.01);
Abstract

A method including: determining whether a cooling system is operating in a cooling mode, such that the cooling system is not operating in a reheat mode, a humidification mode or a dehumidification mode; determining whether the cooling system is operating in a compressor mode, such that the cooling system is not operating in a pump refrigerant economization mode; determining whether the cooling system is at steady-state; and if the cooling system is operating in the cooling mode and the compressor mode and is at steady-state, evaluating one or more rules to determine if a degradation symptom exists for the cooling system. The method further includes: subsequent to the evaluation, generating a degradation evaluation value to indicate whether the one or more rules are satisfied; and based on the degradation evaluation value, generating an alarm signal or performing a countermeasure.


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