| 摘要 |
PROBLEM TO BE SOLVED: To predict the value of one temperature sensor of temperature sensors at the inlet and the outlet of an indoor heat-exchanger from the temperature detecting value of the other temperature sensor and pressure values from pressure sensors at the inlet and the outlet of a compressor, in a plurality of the temperature sensors of an indoor unit. SOLUTION: An air-conditioning device comprises a temperature computing means 41 to compute a signal from a temperature sensor arranged one at the vicinities of the input and the outlet of an indoor heat-exchanger; a pressure computing means 42 to compute a signal from a pressure sensor arranged in the vicinities of the inlet and the outlet of a compressor; a circulation amount computing means 43 to compute a refrigerant circulation amount from the pressure value of a pressure computing means; and a substitution temperature computing means 48 to compute the pressure difference of an indoor heat- exchanger 7 based on a refrigerant circulation amount computed by the refrigerant circulation computing means 43 and compute an outlet temperature when an inlet temperature is known and an inlet temperature when the outlet is known. This constitution detects the inlet and outlet temperatures of the indoor heat-exchanger by one temperature sensor. |
