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:
Dec. 25, 2018

Filed:

Nov. 04, 2014
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Yasutaka Ochiai, Tokyo, JP;

Masaki Toyoshima, Tokyo, JP;

Takashi Okazaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 49/02 (2006.01); F24F 11/36 (2018.01); F24F 11/38 (2018.01); F25B 13/00 (2006.01); F25B 49/00 (2006.01); F25B 41/06 (2006.01);
U.S. Cl.
CPC ...
F25B 49/02 (2013.01); F24F 11/36 (2018.01); F24F 11/38 (2018.01); F25B 13/00 (2013.01); F25B 41/062 (2013.01); F25B 49/005 (2013.01); F25B 2313/0233 (2013.01); F25B 2313/0314 (2013.01); F25B 2313/0315 (2013.01); F25B 2400/13 (2013.01); F25B 2500/04 (2013.01); F25B 2500/16 (2013.01); F25B 2500/222 (2013.01); F25B 2500/27 (2013.01); F25B 2600/2513 (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);
Abstract

A refrigeration cycle apparatus includes a refrigeration cycle in which refrigerant circulates, the refrigeration cycle including a compressor, an outdoor heat exchanger, expansion valves, and indoor heat exchangers, which are connected to each other via a refrigerant pipe, a heat source unit accommodating the outdoor heat exchanger, use-side units accommodating the indoor heat exchangers, and a control unit that controls at least turning on and off of the refrigeration cycle. The control unit detects abnormality of the refrigeration cycle based on the pressure or temperature of the refrigeration cycle in an off time of the refrigeration cycle.


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