Title:
AIR-CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/157395
Kind Code:
A1
Abstract:
An air-conditioning device (10) has a refrigerant circuit (10a) in which a refrigerant circulates, and a control unit (33), and air-conditions an indoor space (A). A countermeasure device (60, 65) is provided as a countermeasure for leakage of the refrigerant in the indoor space (A). A detection unit (70) detects the concentration of the refrigerant in the indoor space (A). A first relay (811, 812) is connected to the control unit (33) and the countermeasure device (60, 65). The control unit (33) closes the first relay (811, 812) when the refrigerant concentration detected by the detection unit (70) exceeds a predetermined allowable concentration. The countermeasure device (60, 65) operates when the first relay (811, 812) closes.
Inventors:
SUZUKI SHUUICHI (JP)
FUKUYAMA YUUTA (JP)
FUKUYAMA YUUTA (JP)
Application Number:
PCT/JP2021/002309
Publication Date:
August 12, 2021
Filing Date:
January 22, 2021
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B41/20; F24F11/36; F24F11/526; F24F11/77; F24F11/89; F25B49/02
Domestic Patent References:
| WO2016174767A1 | 2016-11-03 |
Foreign References:
| JP2017194187A | 2017-10-26 | |||
| JP2013019621A | 2013-01-31 | |||
| JP2013019620A | 2013-01-31 | |||
| JP2000035267A | 2000-02-02 | |||
| JPH07159010A | 1995-06-20 | |||
| JPS6277769U | 1987-05-18 | |||
| JP2016211794A | 2016-12-15 |
Other References:
See also references of EP 4092360A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Download PDF:
Previous Patent: OPTICAL FIBER CABLE AND MANUFACTURING METHOD FOR OPTICAL FIBER CABLE
Next Patent: SEMICONDUCTOR LASER DEVICE
Next Patent: SEMICONDUCTOR LASER DEVICE