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:
May. 09, 2017

Filed:

Nov. 30, 2011
Applicants:

Daisuke Shimamoto, Tokyo, JP;

Osamu Morimoto, Tokyo, JP;

Takayoshi Honda, Tokyo, JP;

Koji Azuma, Tokyo, JP;

Koji Nishioka, Tokyo, JP;

Inventors:

Daisuke Shimamoto, Tokyo, JP;

Osamu Morimoto, Tokyo, JP;

Takayoshi Honda, Tokyo, JP;

Koji Azuma, Tokyo, JP;

Koji Nishioka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 27/02 (2006.01); F25D 17/02 (2006.01); F25B 45/00 (2006.01); F25B 13/00 (2006.01); F25B 25/00 (2006.01); F25B 49/00 (2006.01); F24F 3/06 (2006.01); F24F 11/00 (2006.01);
U.S. Cl.
CPC ...
F28F 27/02 (2013.01); F24F 3/065 (2013.01); F24F 11/006 (2013.01); F25B 13/00 (2013.01); F25B 25/005 (2013.01); F25B 45/00 (2013.01); F25B 49/005 (2013.01); F25D 17/02 (2013.01); F25B 2313/003 (2013.01); F25B 2313/0231 (2013.01); F25B 2339/047 (2013.01); F25B 2500/19 (2013.01);
Abstract

A method for selecting a heat medium in installing an air-conditioning system includes: determining power required for use side heat exchangers corresponding to a plurality of air-conditioned spaces; calculating a total refrigerant amount required when a refrigerant is circulated through all the use side heat exchangers having the determined power; calculating a refrigerant concentration when the total refrigerant amount leaks to each air-conditioned space using the refrigerant, for each air-conditioned space; determining the refrigerant concentration for each air-conditioned space exceeds a predetermined limit concentration; when any air-conditioned space exceeds the limit concentration, selecting, as a nontoxic medium, the circulation heat medium of the use side heat exchanger installed in one of the air-conditioned spaces; and calculating a total refrigerant amount required when the refrigerant is circulated through all other use side heat exchangers.


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