An air conditioning apparatus comprising: a plurality of indoor units (20a, 20b, 20c, 20d, 20e); an outdoor unit that shares a refrigerant system with the plurality of indoor units; a control component configured to decide a predetermined operating mode as an executed operating mode and control the operation of the plurality of indoor units and the outdoor unit in accordance with the executed operating mode; and a setting component configured to allow one indoor unit among the plurality of indoor units to be set as a priority indoor unit, characterized in that in a case where there is an operation request from an indoor unit that has been set as the priority indoor unit among the plurality of indoor units, the control component is configured to decide, as the executed operating mode, the operating mode corresponding to the priority indoor unit, in a case where there is no longer an operation request from the priority indoor unit, or in a case where a predetermined amount of time has passed since an operating mode corresponding to one of non-priority indoor units was decided as the executed operating mode in a state in which there is no operation request from the priority indoor unit, the control component is configured to perform a redetermination process in which the control component redetermines the executed operating mode and decides the executed operating mode in accordance with the result of the redetermination, the non-priority indoor units being the indoor units other than the priority indoor unit when the priority indoor unit is set, in the redetermination process the control component is configured to judge whether or not there is an operation request in accordance with rankings of the non-priority indoor units, as the executed operating mode, the operating mode corresponding to the non-priority indoor unit from which there is an operation request and whose ranking is high, the rankings being decided beforehand, in a case where there is an operation request from one or a plurality of the non-priority indoor units and there is no operation request from the priority indoor unit, the control component is configured to perform a first-come-first-served process in which the control component decides, as the executed operating mode, the operating mode corresponding to the indoor unit from which there was an operation request first among the plurality of indoor units. a plurality of indoor units (20a, 20b, 20c, 20d, 20e); an outdoor unit that shares a refrigerant system with the plurality of indoor units; a control component configured to decide a predetermined operating mode as an executed operating mode and control the operation of the plurality of indoor units and the outdoor unit in accordance with the executed operating mode; and a setting component configured to allow one indoor unit among the plurality of indoor units to be set as a priority indoor unit, characterized in that in a case where there is an operation request from an indoor unit that has been set as the priority indoor unit among the plurality of indoor units, the control component is configured to decide, as the executed operating mode, the operating mode corresponding to the priority indoor unit, in a case where there is no longer an operation request from the priority indoor unit, or in a case where a predetermined amount of time has passed since an operating mode corresponding to one of non-priority indoor units was decided as the executed operating mode in a state in which there is no operation request from the priority indoor unit, the control component is configured to perform a redetermination process in which the control component redetermines the executed operating mode and decides the executed operating mode in accordance with the result of the redetermination, the non-priority indoor units being the indoor units other than the priority indoor unit when the priority indoor unit is set, in the redetermination process the control component is configured to judge whether or not there is an operation request in accordance with rankings of the non-priority indoor units, as the executed operating mode, the operating mode corresponding to the non-priority indoor unit from which there is an operation request and whose ranking is high, the rankings being decided beforehand, in a case where there is an operation request from one or a plurality of the non-priority indoor units and there is no operation request from the priority indoor unit, the control component is configured to perform a first-come-first-served process in which the control component decides, as the executed operating mode, the operating mode corresponding to the indoor unit from which there was an operation request first among the plurality of indoor units.