| 摘要 |
PURPOSE:To enable to supply hot water having always a temperature equal to a set temperature, by providing a water-flow control circuit and a water-flow control valve, and controlling the hot water supply rate within a temperature controllable range of supplied hot water. CONSTITUTION:A water heat controlling apparatus of this invention comprises a water-flow control valve 7 and a water-flow control circuit 6 which consists of power sources 60A, 60B, resistances 61A, 61B, variable resistor 62, adder 63, comparison circuit 64, timer 65, transistor 66, motor M, etc. When the temperature of hot water supplied becomes lower than a set temperature, output of the adder 63 becomes negative and outputs of the comparison circuit 64 and timer 65 become ''high''. Resultantly, the transistor 66 is turned ON and the motor M is set into operation. Further, the valve 7 is closed gradually, so that the amount of hot water supplied is decreased. Therefore, the temperature TWO of supplied hot water is raised gradually until it becomes equal to the set temperature TB. |
