| 摘要 |
<p>PURPOSE:To automatically and effectively supply the daytime and night-time power by providing a power supply control means that takes in signals from a water temperature means and a flow rate detection means to control the power supply to a heater for night-time power use and a heater for daytime power use. CONSTITUTION:After the night-time power K has been supplied a signal A from a timer section 15 and a signal B from a flow rate detection means 11 are inputted and a signal C is outputted to a water flow integrating section 14. The water flow integrating section integrates the signal C to output a signal D to a power supply judging section 16. The power supply judging section 16 actuates a heater 5 for daytime power use J when the signal D becomes above a predetermined value. When the daytime heater 5 is electrified, a signal F from a water temperature 9 is fed into the power supply judging section 16 as a signal G. The power supply judging section 16 cuts off a signal E to an actuating section 17' that actuates the daytime heater 5 when the signal G becomes above a predetermined value. Based on the temperatue at the time of completion of power supply to the daytime heater and the water supply amount thereafter, the power supply to the night-time heater is delayed its starting time by DELTAH.</p> |
