| 摘要 |
PURPOSE:To perform fast rising of the room temperature by a method wherein if a room temperature is less than a predetermined temperature when an operation is started, the operation is carried out over a rated maximum output of the title instrument. CONSTITUTION:In addition to a hot air generating mans, a room temperature sensing means 2, a room temperature setting mans 3, a gas amount calculating means 4, a voltage-current converting means 5, a gas proportional valve 13, a proportional valve current increasing means 14, a room temperature discriminating means 19 and a room temperature discrimination means 20 at the operation starting time are provided. When the operation is started, if the room temperature is less than a predetermined temperature, the proportional valve current increasing means 14 is operated, a current value flowing in the gas proportional valve 13 is increased from a rated output by a predetermined value and then the operation is carried out with an output of the hot air heater being increased more than the maximum rating value by a predetermined value. As a result, it is possible to perform a fast rising of the room temperature. |
