An air-conditioning apparatus comprising: an outdoor unit including a compressor configured to compress a first-side refrigerant, a heat-source-side heat exchanger configured to cause heat exchange between air and the first-side refrigerant and a first flow switching device configured to switch a flow of the first-side refrigerant between a cooling operation and a heating operation; a plurality of indoor units (C1n, C2m) including indoor heat exchangers configured to cause heat exchange between air and a second-side refrigerant; an intermediate unit configured to cause heat exchange between the first-side refrigerant and the second-side refrigerant, the intermediate unit being connected to the outdoor unit by a first-side refrigerant pipe and connected to the indoor units (C1n, C2m) by a second-side refrigerant pipe, the intermediate unit comprising a plurality of intermediate heat exchangers (107a, 107b), expansion mechanisms (105a, 105b) and pumps (109a, 109b); wherein the plurality of indoor units (C1n, C2m) include convective indoor units (C1n) and radiant indoor units (C2m), each of the convective indoor units (C1n) includes a blower device and a convective indoor heat exchanger, wherein the convective indoor heat exchanger is configured to exchange heat with air supplied from the blower device, and, each of the radiant indoor units (C2m) includes a radiant indoor heat exchanger, wherein the radiant indoor heat exchanger is configured to exchange heat with air supplied by natural convection, characterized in that the intermediate unit comprises a second flow switching device (112na-112nd, 114a-114d, 115ma-115md) configured to switch the second-side refrigerant passage to each of the indoor units (C1n, C2m) and each of the intermediate heat exchangers (107a, 107b), and in that in the cooling operation, the second flow switching device is configured such that the second-side refrigerant flowing out of each of the convective indoor units (C1n) flows in the radiant indoor units (C2m), and the second-side refrigerant is supplied to each of the radiant indoor heat exchanger after the temperature of the second-side refrigerant rises by the heat exchange of the convective indoor heat exchanger. an outdoor unit including a compressor configured to compress a first-side refrigerant, a heat-source-side heat exchanger configured to cause heat exchange between air and the first-side refrigerant and a first flow switching device configured to switch a flow of the first-side refrigerant between a cooling operation and a heating operation; a plurality of indoor units (C1n, C2m) including indoor heat exchangers configured to cause heat exchange between air and a second-side refrigerant; an intermediate unit configured to cause heat exchange between the first-side refrigerant and the second-side refrigerant, the intermediate unit being connected to the outdoor unit by a first-side refrigerant pipe and connected to the indoor units (C1n, C2m) by a second-side refrigerant pipe, the intermediate unit comprising a plurality of intermediate heat exchangers (107a, 107b), expansion mechanisms (105a, 105b) and pumps (109a, 109b); wherein the plurality of indoor units (C1n, C2m) include convective indoor units (C1n) and radiant indoor units (C2m), each of the convective indoor units (C1n) includes a blower device and a convective indoor heat exchanger, wherein the convective indoor heat exchanger is configured to exchange heat with air supplied from the blower device, and, each of the radiant indoor units (C2m) includes a radiant indoor heat exchanger, wherein the radiant indoor heat exchanger is configured to exchange heat with air supplied by natural convection, characterized in that the intermediate unit comprises a second flow switching device (112na-112nd, 114a-114d, 115ma-115md) configured to switch the second-side refrigerant passage to each of the indoor units (C1n, C2m) and each of the intermediate heat exchangers (107a, 107b), and in that in the cooling operation, the second flow switching device is configured such that the second-side refrigerant flowing out of each of the convective indoor units (C1n) flows in the radiant indoor units (C2m), and the second-side refrigerant is supplied to each of the radiant indoor heat exchanger after the temperature of the second-side refrigerant rises by the heat exchange of the convective indoor heat exchanger.