An air-conditioning apparatus, comprising: a compressor for compressing and discharging refrigerant; a heat source apparatus-side heat exchanger for exchanging heat between the refrigerant and a heat medium that enters the heat source apparatus-side heat exchanger; a use-side heat exchanger for exchanging heat between the refrigerant and a surrounding medium of use; a bypass pipe for bypassing the refrigerant that is to enter the heat source apparatus-side heat exchanger and a bypass flow control valve arranged on the bypass pipe, for adjusting a flow of the refrigerant that is to enter the heat source apparatus-side heat exchanger, wherein the heat source apparatus-side heat exchanger includes a first passage through which the refrigerant flows, a second passage through which the heat medium flows, and a refrigerant inflow opening through which the refrigerant enters the heat source apparatus-side heat exchanger, and wherein the first passage allows the refrigerant to flow upward, characterized in that, in the heat source apparatus-side heat exchanger, the refrigerant flows through the first passage and the heat medium flows through the second passage in an opposite direction, wherein the bypass flow control valve is arranged above the refrigerant inflow opening, wherein the air-conditioning apparatus further comprises a controller configured to control an opening degree of the bypass flow control valve, wherein the bypass flow control valve has the opening degree controlled to adjust a Cv value of the bypass flow control valve, the Cv value is an opening degree change amount of the bypass flow control valve, and wherein the controller increases an upper limit value of the Cv value of the bypass flow control valve as an operation capacity of the compressor is increased. a compressor for compressing and discharging refrigerant; a heat source apparatus-side heat exchanger for exchanging heat between the refrigerant and a heat medium that enters the heat source apparatus-side heat exchanger; a use-side heat exchanger for exchanging heat between the refrigerant and a surrounding medium of use; a bypass pipe for bypassing the refrigerant that is to enter the heat source apparatus-side heat exchanger and a bypass flow control valve arranged on the bypass pipe, for adjusting a flow of the refrigerant that is to enter the heat source apparatus-side heat exchanger, wherein the heat source apparatus-side heat exchanger includes a first passage through which the refrigerant flows, a second passage through which the heat medium flows, and a refrigerant inflow opening through which the refrigerant enters the heat source apparatus-side heat exchanger, and wherein the first passage allows the refrigerant to flow upward, characterized in that, in the heat source apparatus-side heat exchanger, the refrigerant flows through the first passage and the heat medium flows through the second passage in an opposite direction, wherein the bypass flow control valve is arranged above the refrigerant inflow opening, wherein the air-conditioning apparatus further comprises a controller configured to control an opening degree of the bypass flow control valve, wherein the bypass flow control valve has the opening degree controlled to adjust a Cv value of the bypass flow control valve, the Cv value is an opening degree change amount of the bypass flow control valve, and wherein the controller increases an upper limit value of the Cv value of the bypass flow control valve as an operation capacity of the compressor is increased.