Air-conditioning apparatus provided with refrigerant circuit capable of performing heating operation

An air-conditioning apparatus, comprising:

• a refrigerant circuit including a compressor, a first load-side heat exchanger and at least one second load-side heat exchanger each of which functions as a condenser, and a heat-source-side heat exchanger functioning as an evaporator, the refrigerant circuit being configured to circulate refrigerant;
• a fan configured to supply air to the first load-side heat exchanger and the at least one second load-side heat exchanger;
• a first flow switching unit located downstream of the compressor and upstream of the at least one second load-side heat exchanger in a direction of flow of the refrigerant;
• a second flow switching unit located downstream of the at least one second load-side heat exchanger and upstream of the heat-source-side heat exchanger in the direction of flow of the refrigerant;
• and
• a controller configured to:
• switch the first flow switching unit between a first state in which refrigerant communication between the compressor and the at least one second load-side heat exchanger is blocked and refrigerant communication is established between the compressor and the first load-side heat exchanger and a second state in which the compressor is in refrigerant communication with the first load-side heat exchanger and the at least one second load-side heat exchanger, and
• switch the second flow switching unit between a third state in which, when the first flow switching unit is set in the first state, refrigerant communication between the at least one second load-side heat exchanger and the heat-source-side heat exchanger is blocked and refrigerant communication is established between the first load-side heat exchanger and the heat-source-side heat exchanger, and a fourth state in which the heat-source-side heat exchanger is in refrigerant communication with the first load-side heat exchanger and the at least one second load-side heat exchanger,
• wherein the first load-side heat exchanger and the at least one second load-side heat exchanger are connected in series in the direction of flow of the refrigerant in a state in which the first flow switching unit is set in the second state and the second flow switching unit is set in the fourth state.