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Title:
REFRIGERATING PLANT
Document Type and Number:
Japanese Patent JPH05340657
Kind Code:
A
Abstract:

PURPOSE: To keep the quality of stored articles to be cooled, by performing back-up freezing operation so as to cause no fluctuation of a temperature in a case even when a temperature regulator for intra-case temperature control malfunctions.

CONSTITUTION: A temperature regulating means 10 for operation controls a compressor 4 to start or stop its operation, thereby controlling a temperature so as to hold a temperature in a case at a preset level and, on the other hand, a temperature regulating means 11 for alarm supervises whether a temperature in the case reaches a warning level at which the quality of stored articles is deteriorated. When the temperature regulating means 11 for alarm detects the warning level of a temperature, a change-over means 12 switches the temperature regulating means 11 for alarm to function as a temperature controlling means instead of the temperature regulating means 10 for operation.


Inventors:
Ueno, Akitoshi
Application Number:
JP1992000153612
Publication Date:
December 21, 1993
Filing Date:
June 12, 1992
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F25D11/00; F25D11/02; F25D23/00; G05D23/19; (IPC1-7): F25D11/00; F25D11/02; F25D23/00; G05D23/19
Domestic Patent References:
JPS5647476B2
Attorney, Agent or Firm:
西教 圭一郎 (外1名)



 
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