| 摘要 |
PURPOSE:To enable an amount of blown air to be maintained when blowing air temperature is decreased under a specific capability control of an inverter by a method wherein a blowing temperature selection switch is arranged at an operating part and a blowing air temperature sensed by a sensor for sensing the temperature of blowing air which is arranged at a main body of equipment is controlled in such a way as it may become a value set by the blowing air temperature selection switch. CONSTITUTION:A blowing air temperature is selected to a value of, for example, 50 deg.C with a blowing air temperature selection switch 10 and then a heating operation is started. As the temperature of a heat exchanger 6 sensed by a thermistor 7 becomes more than 20 deg.C, a hot starting operation is released, a fan 5 is rotated to blow ultra-fine air, the temperature of blowing air is detected by a thermistor 8. When the blowing temperature does not reach to 45 deg.C, the number of revolution of a motor 4 is decreased by 100 rpm than a predetermined number of revolution in order to increase air temperature, an increase in decreased air speed is controlled to generate an air flow of spot condition A by concentrating vanes 2 and 3 by 10 deg. without increasing the amount of air. In this case, air speed is not restricted more than a reduced flow condition defined in relation to the positions of the vanes 2 and 3 and the number of revolution of the motor 4 in such a manner as it may not exceed a certain predetermined value.
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