A refrigeration cycle apparatus comprising: a heat source unit including a compressor and an outdoor heat exchanger; a first branch unit and a second branch unit each including a plurality of intermediate heat exchangers (3a, 3b, 4a, 4b) configured to heat exchange between refrigerant and a heat medium and a plurality of expansion devices (7a, 7b, 8a, 8b, 9a, 9b) for refrigerant corresponding the intermediate heat exchangers (3a, 3b, 4a, 4b); a plurality of use side units that receive the heat medium from the first branch unit or the second branch unit; a refrigerant circuit including a high-pressure refrigerant pipe, a low-pressure refrigerant pipe, and an intermediate-pressure refrigerant pipe, the high-pressure refrigerant pipe and the low-pressure refrigerant pipe respectively connecting the heat source unit to each of the first branch unit and the second branch unit in parallel, the intermediate-pressure refrigerant pipe connecting the first branch unit and the second branch unit to each other; a high-pressure detecting device configured to detect a pressure of the high-pressure refrigerant pipe in each of the first branch unit and the second branch unit; and an intermediate-pressure detecting device configured to detect a pressure of the intermediate-pressure refrigerant pipe in each of the first branch unit and the second branch unit, the first branch unit has a minimum pressure loss in distribution of refrigerant in the high-pressure refrigerant pipe connecting the heat source unit to the first branch unit, the second branch unit having a maximum pressure loss in distribution of refrigerant in the high-pressure refrigerant pipe connecting the heat source unit to the second branch unit, at least one of the plurality of the expansion devices (7a, 7b, 8a, 8b, 9a, 9b) is configured to have an opening degree such that a differential pressure between a refrigerant pressure detected by the high-pressure detecting device of the first branch unit and a refrigerant pressure detected by the intermediate-pressure detecting device is greater than or equal to a set value. a heat source unit including a compressor and an outdoor heat exchanger; a first branch unit and a second branch unit each including a plurality of intermediate heat exchangers (3a, 3b, 4a, 4b) configured to heat exchange between refrigerant and a heat medium and a plurality of expansion devices (7a, 7b, 8a, 8b, 9a, 9b) for refrigerant corresponding the intermediate heat exchangers (3a, 3b, 4a, 4b); a plurality of use side units that receive the heat medium from the first branch unit or the second branch unit; a refrigerant circuit including a high-pressure refrigerant pipe, a low-pressure refrigerant pipe, and an intermediate-pressure refrigerant pipe, the high-pressure refrigerant pipe and the low-pressure refrigerant pipe respectively connecting the heat source unit to each of the first branch unit and the second branch unit in parallel, the intermediate-pressure refrigerant pipe connecting the first branch unit and the second branch unit to each other; a high-pressure detecting device configured to detect a pressure of the high-pressure refrigerant pipe in each of the first branch unit and the second branch unit; and an intermediate-pressure detecting device configured to detect a pressure of the intermediate-pressure refrigerant pipe in each of the first branch unit and the second branch unit, the first branch unit has a minimum pressure loss in distribution of refrigerant in the high-pressure refrigerant pipe connecting the heat source unit to the first branch unit, the second branch unit having a maximum pressure loss in distribution of refrigerant in the high-pressure refrigerant pipe connecting the heat source unit to the second branch unit, at least one of the plurality of the expansion devices (7a, 7b, 8a, 8b, 9a, 9b) is configured to have an opening degree such that a differential pressure between a refrigerant pressure detected by the high-pressure detecting device of the first branch unit and a refrigerant pressure detected by the intermediate-pressure detecting device is greater than or equal to a set value.