Title:
REFRIGERANT CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/158653
Kind Code:
A1
Abstract:
An air conditioning device (1) comprises a use-side unit (3a), a heat-source-side unit (2), refrigerant communication pipes (5, 6), cutoff valves (68a, 71a) provided to the refrigerant communication pipes (5, 6), a refrigerant leak detection unit (79a), and a control unit. When a leak of refrigerant is detected by the refrigerant leak detection unit (79a), the control unit performs a pressure reduction control to reduce the pressure of refrigerant in the use-side unit (3a), and then causes the cutoff valves (68a, 71a) to transition to a cutoff state.
Inventors:
YAJIMA RYUUZABUROU
Application Number:
PCT/JP2020/002730
Publication Date:
August 06, 2020
Filing Date:
January 27, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F24F11/36; F25B41/04; F25B1/00; F25B49/02
Domestic Patent References:
WO2018043721A1 | 2018-03-08 | |||
WO2018131467A1 | 2018-07-19 |
Foreign References:
JPH109692A | 1998-01-16 | |||
JP2018112350A | 2018-07-19 | |||
JPH10281569A | 1998-10-23 | |||
JP2000179971A | 2000-06-30 | |||
JP2013178073A | 2013-09-09 | |||
JP2015075272A | 2015-04-20 | |||
JP2008170058A | 2008-07-24 | |||
US20140123685A1 | 2014-05-08 | |||
JP2014035171A | 2014-02-24 |
Other References:
See also references of EP 3919837A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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