| 摘要 |
PURPOSE:To remove unnecessary use of energy and maintaining the room temperature at a suitable value by providing a temperature setting part and a temperature sensor, outputting a signal when the difference between data output in accordance with the set temperature and output data of the temperature sensor exceeds a predetermined value thereby repeating the drive and stop of a motor. CONSTITUTION:A comparison circuit 9 compares data adjusted by a temperature setting adjustor 14 with output data of an arithmetic operation circuit 8. When the difference between both data becomes the predetermined value of 0.2 deg.C, the comparison circuit 9 transmits an output signal to a cooling and heating selection circuit 10. The cooling and heating selection circuit 10 closes any of cooling and heating switches 3 and 4 depending upon the result of the comparison circuit 9 to put the apparatus in a waiting state. When the comparison circuit 9 outputs a signal of a low level, the cooling and heating selection circuit 10 outputs a control signal of a high level to a contactless relay circuit 11. When the comparison circuit 9 outputs a high level signal, the circuit 10 outputs a control signal of a low level to the contactless relay circuit 11. When the control signal is amplified, the contactless relay circuit 11 switches a bidirectional conductive element to drive or stop a fan coil motor. Accordingly, since the setting of the room temperature is adjusted at a small temperature width, the interior of the room can be kept in a confortable state.
|
