Air conditioning apparatus

An air conditioning apparatus, comprising:

• an outdoor unit through which a refrigerant circulates;
• a plurality of indoor units through which water circulates, the plurality of indoor units comprising a first indoor heat exchanger and a second indoor heat exchanger;
• and
• a heat-exchange device configured to connect the outdoor unit to the indoor unit, the heat exchange device comprising a first heat exchanger and a second heat exchanger, in which the refrigerant and water are heat exchanged with each other, wherein the heat exchange device comprises:
• a first inflow tube that extends from the first indoor heat exchanger toward the first heat exchanger to guide a flow of the water;
• a second inflow tube that extends from the second indoor heat exchanger toward the second heat exchanger to guide the flow of the water;
• a first pump provided in the first inflow tube;
• a second pump provided in the second inflow tube;
• and
• a branch tube configured to connect the first inflow tube to the second inflow tube, wherein when a first portion of the plurality of indoor units performs a heating operation and a second portion of the plurality of indoor units performs a cooling operation, when a total capacity required for the plurality of indoor units is equal to or less than a predetermined capacity, the first pump or the second pump operates and the water flows through the branch tube, and when the total capacity required for the plurality of indoor units exceeds the predetermined capacity, the first pump and the second pump operate.