CONTROLLING DEVICE OF NUMBER OF OPERATING UNIT

Title:

CONTROLLING DEVICE OF NUMBER OF OPERATING UNIT

Document Type and Number:

Japanese Patent JP3240440

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To restart a control of the number of operating units in an optimum state in accordance with a situation of a power failure.
SOLUTION: When a power failure occurs in all of refrigerators ('Y' of a step 103), a loaded heat quantity Q at present is stored as a loaded heat quantity Qa just before the power failure (a step 104). When power is restored within the time of an instantaneous power failure, this is judged as occurrence of the instantaneous power failure and a control of the number of operating units of refrigerators is reopened on the basis of the loaded heat quantity Qa just before the power failure (a step 109). At this time, a fresh control command is not sent to the refrigerators of a type having measures against the instantaneous power failure.

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Inventors:

Kazuyasu Hamada
Takashi Fujimura
Yukihiko Oka
Tomoko Kamoshida

Application Number:

JP19503498A

Publication Date:

December 17, 2001

Filing Date:

June 24, 1998

Export Citation:

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Assignee:

YAMATAKE CORPORATION

International Classes:

F24F11/02; (IPC1-7): F24F11/02

Domestic Patent References:

JP7332774A
JP9126531A
JP658654A
JP3291439A
JP11248235A
JP1019338A
JP7208789A
JP7225045A
JP6122697A
JP9318142A

Attorney, Agent or Firm:

Masaki Yamakawa

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