| 摘要 |
PURPOSE:To enable the concurrent use of a water boiling device with a coffee server or the like of large electric capacity by applying the constitution wherein a heater is turned off upon receipt of the on signal of external equipment even during the operation of the heater via hot water temperature detection, and a hot water feed valve is electrically actuated via a hot water feed operation. CONSTITUTION:A control equipment is constituted with a temperature judgement means 14 for inputting a signal of temperature in a tank 2 detected with a temperature detector 12 and comparing the signal with a reference temperature signal, a heater drive means 40 for supplying power to a heater 3 on the basis of the output of the aforesaid means 14, a priority judgement means 16 for outputting a heater power interruption signal to the heater drive means 40 upon receipt of the on signal 15 of external equipment such as a coffee server, regardless of the value of the temperature signal, and a hot water feed valve drive means 42 for supplying power to a hot water feed valve 5 upon receipt of a signal from a hot water feed switch 17. According to the aforesaid construction, when the coffee server is used, the priority judgement means 16 interrupts power supply to the heater of a tea server upon receipt of the on signal of the coffee server. The electrical systems of the tea server other than the heater thereof are being supplied with electric power, tea is served as the hot water feed valve 5 is operated upon pressing a tea service switch. |
