US 11,719,450 B2
Air-conditioning system
Yuuta Fukuyama, Osaka (JP); and Hiroki Sasayama, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Jul. 13, 2022, as Appl. No. 17/863,919.
Application 17/863,919 is a continuation of application No. PCT/JP2021/001398, filed on Jan. 18, 2021.
Claims priority of application No. 2020-018221 (JP), filed on Feb. 5, 2020.
Prior Publication US 2022/0349601 A1, Nov. 3, 2022
Int. Cl. F24F 11/36 (2018.01); F24F 11/89 (2018.01); F24F 11/56 (2018.01); F25B 41/20 (2021.01); F25B 49/02 (2006.01); F24F 110/65 (2018.01)
CPC F24F 11/36 (2018.01) [F24F 11/56 (2018.01); F24F 11/89 (2018.01); F25B 41/20 (2021.01); F25B 49/02 (2013.01); F24F 2110/65 (2018.01)] 13 Claims
OG exemplary drawing
 
1. An air-conditioning system that can perform a countermeasure procedure during leakage of a refrigerant, the air-conditioning system comprising:
an air conditioner including an outdoor unit and a plurality of indoor units, each indoor unit being provided in a corresponding one of a plurality of indoor spaces and including a first controller; and
a second controller capable of communicating with the plurality of first controllers,
the air conditioner including a refrigerant circuit which is formed by connecting the outdoor unit and the plurality of indoor units together and through which the refrigerant circulates,
each first controller being capable of communicating with a countermeasure device that is in correspondence with one of the indoor spaces where the first controller is located,
the second controller having a first function of prohibiting operation of all of the indoor units if a first condition where communication between the first controller and the countermeasure device is not established in each of the plurality of indoor units is satisfied,
the second controller permitting the operation of all of the indoor units if communication between one of the plurality of first controllers and the countermeasure device is established, wherein
the second controller is provided in the outdoor unit,
the outdoor unit includes a compressor that is connected to the refrigerant circuit, and
the second controller prohibits operation of the compressor when the first condition is satisfied.