Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/001969
Kind Code:
A1
Abstract:
A control device (100) controls a heating capacity during a heating operation and a defrost capacity during a defrost operation. The control device (100) determines the defrost capacity in the defrost operation of a first refrigeration cycle unit (201) and starts the defrost operation when a first defrost start condition is satisfied. The defrost capacity of the first refrigeration cycle unit (201) is determined within a range satisfying a first assessment condition and within a range satisfying a second assessment condition. The first assessment condition is that the total of a load capacity of a load device (3) and the defrost capacity of the first refrigeration cycle unit (201) at the time the first defrost start condition is satisfied does not exceed the heating capacity of a second refrigeration cycle unit (202). The second assessment condition is that the total time of an inter-unit defrost interval and a defrost period of the first refrigeration cycle unit (201) does not exceed a shortest defrost interval of the second refrigeration cycle unit (202).
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Inventors:
ITO MASAHIRO (JP)
Application Number:
PCT/JP2019/026525
Publication Date:
January 07, 2021
Filing Date:
July 03, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F25B47/02
Domestic Patent References:
| WO2006123687A1 | 2006-11-23 |
Foreign References:
| JP2008249236A | 2008-10-16 | |||
| JP2013108732A | 2013-06-06 |
Other References:
See also references of EP 3995763A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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