An air-conditioning apparatus, comprising: a refrigeration cycle that connects a compressor to pressurize a refrigerant, a refrigerant flow path switching apparatus to switch a circulation path of said refrigerant, a heat source side heat exchanger to make said refrigerant exchange heat, a first expansion valve to adjust the pressure of said refrigerant and a second expansion valve, a first intermediate heat exchanger to heat a heat medium different from said refrigerant by exchanging heat between said refrigerant and said heat medium, and a second intermediate heat exchanger to cool said heat medium by exchanging heat between said refrigerant and said heat medium, by piping; a heat medium circulation circuit that connects said first intermediate heat exchanger to heat said heat medium, said second intermediate heat exchanger to cool said heat medium, a pump (21 a, 21b) to make said heat medium related to heat exchange of each intermediate heat exchanger circulate, a plurality of use side heat exchangers (26a - 26d) that exchange heat between said heat medium and the air related to an air-condtioning object space, by piping, wherein said heat source side heat exchanger, said first and second intermediate heat exchangers (15a, 15b), and said plurality of use side heat exchangers (26a - 26d) are disposed at separated locations from each other, respectively, characterised in that it further comprises an outdoor unit side controller that controls each apparatus in an outdoor unit housing said compressor, said refrigerant flow path switching apparatus and said heat source side heat exchanger, and a relay unit side controller that controls each apparatus in a relay unit housing said first expansion valve, said second expansion valve, and said intermediate heat exchangers (15a, 15b) and to communicate with said outdoor unit side controller, wherein the relay unit side controller is configured to transmit a control signal containing data on a control target value or adjustment values of said control target value to said outdoor unit side controller, said control target value being a target value of a condensing temperature of the refrigerant passing through said first intermediate heat exchanger and/or an evaporating temperature of the refrigerant passing through said second intermediate heat exchanger. a refrigeration cycle that connects a compressor to pressurize a refrigerant, a refrigerant flow path switching apparatus to switch a circulation path of said refrigerant, a heat source side heat exchanger to make said refrigerant exchange heat, a first expansion valve to adjust the pressure of said refrigerant and a second expansion valve, a first intermediate heat exchanger to heat a heat medium different from said refrigerant by exchanging heat between said refrigerant and said heat medium, and a second intermediate heat exchanger to cool said heat medium by exchanging heat between said refrigerant and said heat medium, by piping; a heat medium circulation circuit that connects said first intermediate heat exchanger to heat said heat medium, said second intermediate heat exchanger to cool said heat medium, a pump (21 a, 21b) to make said heat medium related to heat exchange of each intermediate heat exchanger circulate, a plurality of use side heat exchangers (26a - 26d) that exchange heat between said heat medium and the air related to an air-condtioning object space, by piping, wherein said heat source side heat exchanger, said first and second intermediate heat exchangers (15a, 15b), and said plurality of use side heat exchangers (26a - 26d) are disposed at separated locations from each other, respectively, characterised in that it further comprises an outdoor unit side controller that controls each apparatus in an outdoor unit housing said compressor, said refrigerant flow path switching apparatus and said heat source side heat exchanger, and a relay unit side controller that controls each apparatus in a relay unit housing said first expansion valve, said second expansion valve, and said intermediate heat exchangers (15a, 15b) and to communicate with said outdoor unit side controller, wherein the relay unit side controller is configured to transmit a control signal containing data on a control target value or adjustment values of said control target value to said outdoor unit side controller, said control target value being a target value of a condensing temperature of the refrigerant passing through said first intermediate heat exchanger and/or an evaporating temperature of the refrigerant passing through said second intermediate heat exchanger.