Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/170470
Kind Code:
A1
Abstract:
This refrigeration cycle device comprises a refrigeration cycle circuit, a bypass flow path, a first valve provided to the refrigeration cycle circuit, a second valve provided to the bypass flow path, a first temperature sensor that detects an indoor temperature, a second temperature sensor that detects the temperature of the liquid-side refrigerant in an indoor heat exchanger, and a reporting unit. The refrigeration cycle device enables operation in an operation state in which a compressor operates, the indoor heat exchanger functions as an evaporator, the first valve is in an open state, and the second valve is in a closed state. In this operation state, when the detection temperature of the second temperature sensor is higher than the evaporation temperature of the refrigerant in the refrigeration cycle circuit, an abnormality of an electronic expansion valve or the first valve is reported by the reporting unit.
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Inventors:
OCHIAI YASUTAKA (JP)
KOMATSU KAZUHIRO (JP)
TASAKI NOBUAKI (JP)
KOMATSU KAZUHIRO (JP)
TASAKI NOBUAKI (JP)
Application Number:
PCT/JP2019/030222
Publication Date:
August 27, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F25B1/00
Foreign References:
| JP2016508590A | 2016-03-22 | |||
| JP2007333219A | 2007-12-27 | |||
| JP2000274896A | 2000-10-06 | |||
| KR20050114111A | 2005-12-05 | |||
| JP2000274896A | 2000-10-06 |
Other References:
See also references of EP 3929506A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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