| 摘要 |
<p>PURPOSE:To achieve saving of energy, by storing hot water according to the hot-water utilizing conditions by providing a control means for setting the temperature of stored hot water on the basis of the output signal of a means for detecting the temperature of supplied hot water and the output signal of a means for setting the hot-water utilizing conditins per one day. CONSTITUTION:A heating means 5, a means 6 for deecting the temperature of stored hot water and a means 7 for detecting the temperature of supplied hot water are attached to a hot-water storing container 4, and a means 9 for setting the hot-water utilizing conditions per one day is connected to a control means 8' via a signal wire 10. With such an arrangement, when a resistance R6 is set by the setting means 9, the voltage produced by the resistance R6 and that produced by a thermistor resistance R3 serving as the means 7 for detecting the temperature of supplied hot water are compared by a comparator C. In case that the volage produced by the resistance R3 is higher than that produced by a resistance R1, that is, in case that the temperature of stored hot water is lower than a set temperature, a heater H is set into operation by feeding current to a coil E and energizing a relay RX. By thus setting the temperature of stored hot water on the basis of both of the hot-water utilizing conditions and the temperature of supplied hot water, it is enabled to achieve saving of energy.</p> |
