| 摘要 |
PURPOSE:To enable to control the room temperature smoother than ever, by a method wherein the times required for the signal of a valve full open-and full close detector to change from the full open state to the full closed state of a valve to change from the full closed state to the full open state of the valve are measured respectively in order to control the actuation of the valve based upon said times required and the signal sent from a sensor. CONSTITUTION:A controlling device consists of a temperature detecting part 21, which receives the signal from a temperature sensor 9, a temperature setting part 22, a comparing part 23, a full open-and-full close detecting part 24, a time measuring part 25, a start-and-stop instructing part 26 of a fan 2 and a valve actuation instructing part 27. In addition, a valve full open-and-full close detector 30 is provided in the junction part between a valve 28 to control the circulating flow rate of a heat exchanger 3 and a valve driving device 29. The valve actuation instructing part 24 and the valve driving device 29, the start-and-stop instructing part 26 and the fan 2 and the full open-and-full close detecting part 24 and the valve full open-and-full close detector 30 are electrically connected to each other respectively. Because the times required fro the signal of the valve full open-and-full close detector to change from the full closed state to the full open state of the valve and to change from the full open state to the full closed state of the valve are measured, the torque fluctuation during the driving of the valve can be coped with, resulting in correctly reflecting the opening of the valve with the difference between the set temperature and the detected temperature and accordingly smoothly controlling the room temperature.
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