| 摘要 |
<p>PURPOSE:To dissolve the waste of electric power and contrive the obtaining of desired waer temperature lower than the setting temperature as required by a method wherein the starting of electrifying is intentionally delayed for a fixed time after starting of mid-night electric power service from an electric power company. CONSTITUTION:A timer 6 for setting the desired water temperature is connected to an electric circuit 3 via a contact S3 of a rotary switch 7. The timer 6 starts the time counting action by applying of an electric voltage after the first contact 4 is ON, then outputs continuously an action signal (a) after passing of the time T1 which is previously set with a knob 61 by an operater. When the applying of the electric voltage for a time counting main body part 62 of the timer 6 is stopped, the outputting of the action signal (a) is stopped. The desired water temperature can be obtained with a timer 9 which is connected to the electric circuit 3 via the fourth contact 8 which is ON or OFF by the output signal (a) of the timer 6 and a contact S3 of a rotary switch 7. Further, a temperature sensor 10 composed of thermistor is connected in series.</p> |
