Title:
PERFORMANCE DEGRADATION DIAGNOSIS SYSTEM FOR REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/203977
Kind Code:
A1
Abstract:
Provided is a performance degradation diagnosis system for a refrigeration cycle device capable of accurately identifying a cause of performance degradation. A performance degradation diagnosis system (200) is a performance degradation diagnosis system for an air conditioning device (100) provided with a refrigerant circuit including a compressor, a heat source side heat exchanger, and a use-side heat exchanger. The performance degradation diagnosis system is provided with a determination unit (216) and an air conditioning control unit (214). The determination unit determines the performance degradation of the air conditioning device in relation to each of a plurality of performance degradation causes of the air conditioning device on the basis of an indicator indicating the operation state of the air conditioning device. The air conditioning control unit, when the determination unit determines the performance degradation of the air conditioning device in relation to each of a plurality of performance degradation causes, finds the operating condition of the air conditioning device in operation and, if the operating condition of the air conditioning device is not suitable for the determination of the performance degradation of the air conditioning device due to a performance degradation cause for the determination, controls the operating condition of the air conditioning device to make the operating condition of the air conditioning device a suitable operating condition.
Inventors:
FUJIMOTO SHUJI
INAO AKIHIRO
SADAI SHIZUKA
KASAHARA SHINICHI
HIKAWA TAKESHI
INAO AKIHIRO
SADAI SHIZUKA
KASAHARA SHINICHI
HIKAWA TAKESHI
Application Number:
PCT/JP2020/014576
Publication Date:
October 08, 2020
Filing Date:
March 30, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B49/02; F24F11/38; F24F11/39; F25B1/00
Domestic Patent References:
| WO2006090451A1 | 2006-08-31 |
Foreign References:
| JP2015197226A | 2015-11-09 | |||
| JP2006292213A | 2006-10-26 | |||
| JP2011099591A | 2011-05-19 | |||
| JP2007163103A | 2007-06-28 | |||
| JP2008196829A | 2008-08-28 | |||
| JP2015212594A | 2015-11-26 |
Other References:
See also references of EP 3929507A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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