Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2018/229921
Kind Code:
A1
Abstract:
This air conditioner is provided with: a housing; a gas sensor that is disposed in the housing and outputs a sensor output in accordance with the concentration of a refrigerant; a control device that compares the sensor output of the gas sensor with a first threshold value that is a threshold value for determining the presence or absence of refrigerant leakage so as to detect the refrigerant leakage; and an output device that issues a warning. The control device causes the output device to issue a warning in a case where a state, in which the sensor output of the gas sensor is not less than a second threshold value, which is set as a voltage lower than a limit voltage and which indicates that sensitivity of the gas sensor is zero due to siloxane poisoning, and is less than the first threshold value higher than the second threshold value, is continued for a predetermined setting period.
Inventors:
WATANABE KAZUKI (JP)
Application Number:
PCT/JP2017/022069
Publication Date:
December 20, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02
Foreign References:
| JP2014224612A | 2014-12-04 | |||
| JP2010256049A | 2010-11-11 | |||
| JP2017067393A | 2017-04-06 | |||
| JP2014126444A | 2014-07-07 | |||
| JP2016145738A | 2016-08-12 | |||
| JPH02287133A | 1990-11-27 | |||
| JP6143977B1 | 2017-06-07 | |||
| JP2012229863A | 2012-11-22 | |||
| JP2008233065A | 2008-10-02 |
Other References:
See also references of EP 3640567A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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