Klimaanlage

Abstract

The present disclosure provides an air conditioning system capable of securing convenience of a user by preventing reverse flow of air in a state where an air conditioning indoor unit is stopped and capable of achieving energy saving. The air conditioning system in which an air conditioning indoor unit 10 including an indoor fan 14 and a heat exchanger is connected to a ventilation device 30 including a ventilation fan 37 with a duct, includes a control unit 50 that drives and controls the indoor fan 14 and the ventilation fan 37, and the control unit 50 performs control to drive the ventilation fan 37 in a case where the indoor fan 14 is driven, stop the ventilation fan 37 in a case where the indoor fan 14 is stopped, and stop the ventilation fan 37 in a case where the indoor fan 14 is driven after operation of the air conditioning indoor unit 10 is stopped.