| 摘要 |
PROBLEM TO BE SOLVED: To shorten a rising time from the starting of an operation up to the generation of vapor by changing over the control of operation in a plurality of heating mode comprising a heating temperature mode which operates a heating means quantitatively and a humidification mode which controls the operation of the heating means so as to change a heat generation rate from the temperature of a water tank. SOLUTION: A control circuit confirms ON/OFF of an operation switch (100). In the case when the operation switch is ON, a hot water temperature detection signal T from a hot water temperature sensor is compared with a heater change over reference temperature T1 deg.C, thereby performing heating control in conformity with the hot water temperature at the start of the operation (101). More specifically, a heater to be operated in large power heating mode is selected from the setting condition of a power change over switch in the case when the temperature of water in the start of operation is less than the heater change over reference temperature T1 deg.C. Furthermore, the hot water detection signal T and a heater change over reference temperature TB deg.C are compared with each other (107). In the case when the hot water temperature detection signal T has reached the heater change over reference temperature TB deg.C as a result of the comparison, the power is input in small power heating mode of humidification mode. |
