AIR CONDITIONING DEVICE

Provided is an air-conditioning apparatus having a low-outside-air-temperature cooling operation mode. The air-conditioning apparatus includes: a refrigerant circuit in which a compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected in sequence by a pipe, and configured to allow refrigerant to cycle through the refrigerant circuit; an outdoor fan configured to send air to the outdoor heat exchanger; an outdoor air temperature sensor configured to measure a temperature of outside air; an indoor heat exchanger intermediate temperature sensor configured to measure a temperature of refrigerant flowing through an intermediate portion of the indoor heat exchanger; an indoor heat exchanger outlet temperature sensor configured to measure a temperature of refrigerant flowing through an outlet of the indoor heat exchanger; and a controller configured to, when a measured value from the outdoor air temperature sensor is equal to or less than a predetermined value, perform the low-outside-air-temperature cooling operation mode, wherein in the low-outside-air-temperature cooling operation mode, the controller is configured to reduce a rotation speed of the outdoor fan, and to, when a difference between a measured value from the indoor heat exchanger outlet temperature sensor and a measured value from the indoor heat exchanger intermediate temperature sensor is equal to or greater than a first threshold, increase an opening degree of the pressure reducing device.