| 摘要 |
PURPOSE:To prevent sudden change of the hot-water temperature of a shower when a set temperature is changed by mistake during using the shower by a method wherein a new temperature setting signal is neglected during receiving a signal meaning that a control device is supplying hot-water. CONSTITUTION:In the tap-controlled hot-water heater heated by town gas, which is controlling the hot-waer temperature by the amount of gas, the new temperature setting signal is neglected during receiving the signal meaning that the control device C is supplying the hot-water. For instance, a water amount sensor 25 detects the amount of water and a flame rod 6 detects the combustion of a buffer 1 while both of them continue to output signals respectively during using the shower 20, therefore, if a temperature control knob 35 is operated to change the set temperature in order to use other hot-water and water mixing cock such as the same cock 17 in a kitchen, for example, during this period, the signal is neglected and the temperature of the hot-water discharged from the shower 20 is not changed. |
