AIR-CONDITIONING APPARATUS

An air-conditioning apparatus includes: a refrigerant circuit; a casing configured to accommodate therein a heat exchanger and an internal refrigerant pipe, the heat exchanger and the internal refrigerant pipe each forming a part of the refrigerant circuit; a refrigerant pipe connection portion; an opening port formed on the casing, and configured to allow an interior of the casing to communicate with an exterior of the casing; a cover portion configured to cover a periphery of the refrigerant pipe connection portion, and cover, the opening port; and a refrigerant sensing unit provided in a refrigerant leakage sensing space, the refrigerant leakage sensing space being made up of an outside space of the casing and an inside space of the casing, the outside space being covered by the cover portion, the inside space communicating with the outside space through the opening port.