| 摘要 |
PURPOSE:To avoid uncomfortableness caused by excessive lowering of the room temperature, by operating an air conditioner at a capacity one stage higher than the actual capacity at the time when the temperature of air discharged from the air conditioner is higher than a first set value, and operating the air conditioner at a capacity one stage lower than the actual capacity at the time when the temperature of air discharged from the air conditioner is lower than a second set value. CONSTITUTION:When operation of an air conditioner is started at a time t0 and the room temperature at the time is higher than Ts+2 deg.C, the air conditioner is operated at about 60Hz through frequency assignment determined only by the room temperature. Resultantly, the room temperature is lowered gradually. When the room temperature is lowered to Ts+2 deg.C and about 45Hz operation is started, control and detection of the temperature of air discharged from the air conditioner is started. Here, since the temperature of air discharged from the air conditoner stands between about 17 deg.C and about 19 deg.C, operation is continued at the frequency of about 45Hz. Further, if the temperature of air discharged from the air conditioner becomes lower than 17 deg.C at a time t2, the air conditioner is operated at about 30Hz by lowering the frequency through frequency correction based on the temperature of air discharged from the air conditioner. Resultantly, a compressor is set into about 30Hz operation, and the room temperature is kept stable between the temperature of Ts+1 deg.C and Ts+2 deg.C. |
