US 12,066,201 B2
Air conditioning system having a normal control mode and multi-tenant control mode
Kazuhiro Nakayama, Osaka (JP); and Atsushi Okamoto, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/614,878
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
PCT Filed May 22, 2020, PCT No. PCT/JP2020/020358
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2020/241507, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-102620 (JP), filed on May 31, 2019.
Prior Publication US 2022/0146131 A1, May 12, 2022
Int. Cl. F24F 11/32 (2018.01); F24F 1/0007 (2019.01); F24F 11/46 (2018.01); F24F 11/526 (2018.01); F24F 11/54 (2018.01); F24F 11/89 (2018.01)
CPC F24F 11/32 (2018.01) [F24F 1/0007 (2013.01); F24F 11/46 (2018.01); F24F 11/526 (2018.01); F24F 11/54 (2018.01); F24F 11/89 (2018.01)] 11 Claims
OG exemplary drawing
 
1. An air conditioning system comprising:
a refrigerant cycle including an outdoor unit and a plurality of indoor units, each of the plurality of indoor-units including a respective indoor-unit controller;
an auxiliary power source that, in a case where a main power source for at least one indoor unit of the plurality of indoor units is interrupted, feeds power only to the at least one indoor unit for which the main power source is interrupted;
a plurality of predetermined devices connected to the respective indoor-unit controller of a respective one of the plurality of indoor units and the auxiliary power source via the respective indoor-unit controller, the plurality of predetermined devices capable of functioning in a plurality of modes, the plurality of modes including at least one forced mode in which at least some of the plurality of predetermined devices operate in conjunction with each other and at least one other mode in which the plurality of predetermined devices do not operate in conjunction with each other; and
a controller configured to deactivate at least one of the plurality of predetermined devices in the at least one indoor unit by stopping the forced mode operation and starting the at least one other mode, when the main power source for the at least one indoor unit is interrupted and power consumed in the forced mode exceeds power that can be fed by the auxiliary power source, while feeding power from the main power source to remaining ones of the plurality of indoor-units.