Refrigeration cycle device

Abstract

A first refrigeration cycle includes a first compressor, a first radiator, an air-conditioning expansion valve, an air-conditioning evaporator, a first expansion valve, and a first evaporator. In the first refrigeration cycle, a first refrigerant evaporates in at least one of the air-conditioning evaporator or the first evaporator. A second refrigeration cycle includes a second compressor, a second radiator, a second expansion valve, and a second evaporator. A heat transfer portion switches a heat radiation destination from the first radiator to a second refrigerant in the second evaporator or outside air. In the air-conditioning evaporator, the first refrigerant absorbs heat from ventilation air blown into a space to be air conditioned as the first refrigerant evaporates. In the first evaporator, the first refrigerant absorbs heat from the outside air as the first refrigerant evaporates. In the second radiator, the second radiator radiates heat from the second refrigerant to the ventilation air.