Patent ID: 8006505

Claim:
An air conditioning apparatus comprising: a vapor compression refrigerant circuit, the vapor compression refrigerant circuit using carbon dioxide as a refrigerant; an electric component assembly being configured to control an operation of structural devices; a refrigerant emission device being configured to emit the carbon dioxide from the vapor compression refrigerant circuit to the electric component assembly; a detection sensor that senses a quantity of state resulting from an abnormal temperature increase in the electric component assembly; and a emission control device that performs a refrigerant emission control, wherein a decision is made as to whether or not the abnormal temperature increase has occurred in the electric component assembly on the basis of the quantity of state sensed by the detection sensors, and the refrigerant emission device is operated so that the carbon dioxide is emitted from the vapor compression refrigerant circuit to the electric component assembly when a decision has been made that the abnormal temperature increase has occurred in the electric component assembly.