Patent ID: 11906191
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 11:
12. The air-conditioning apparatus of claim 11, further comprising
a refrigerant intermediate temperature sensor installed between the first relay heat exchanger and the second expansion device,
wherein the controller
controls the second expansion device during a cooling and heating simultaneous operation in which a cooling-main operation is performed, based on a temperature detected by the refrigerant outlet temperature sensor, such that the non-azeotropic refrigerant mixture that flows out of the second relay heat exchanger has a quality of 0.9 or more or a degree of superheat of 3 K or less, and controls the second expansion device during a cooling and heating simultaneous operation in which a heating-main operation is performed, based on a temperature detected by the refrigerant intermediate temperature sensor, such that the refrigerant that flows out of the first relay heat exchanger has a quality of 0.2 or less or a degree of subcooling of 15 K or less.