Patent ID: 11920818
Assignee: DAIKIN INDUSTRIES, LTD.
Field: nan (nan)
Classification: CPC nan | IPC F

Claim 6:
7. An air treatment system comprising:
an air treatment unit that performs a predetermined treatment to air;
a duct including a main duct connected to the air treatment unit and a first duct and a second duct branched off the main duct;
a first fan unit being the fan unit according to claim 3 and connected to the first duct; and
a second fan unit being the fan unit according to claim 3 and connected to the second duct, wherein
the controller includes a first controller provided in the air treatment unit, and second controllers provided in the first fan unit and the second fan unit, respectively,
when determining that the backflow occurs, the second controllers transmit first signals to the first controller, and
when receiving the first signals, the first controller determines air volume target values, with which the backflow is eliminated, for the first fan unit and the second fan unit with respect to the second controllers, respectively.