| 摘要 |
PURPOSE:To reduce the time necessary for supplying hot water to a bathtub and surely control hot water supply temperature by keeping the heating capacity of an enforced circulation heating device and a hot water supply device in a maximum condition and setting hot water supply temperature from the hot water supply device to specified temperature after the heating capacity of the hot water supply device reaches the maximum condition once. CONSTITUTION:In the case where hot water is supplied from a hot water supply device 30 to a bathtub 10, after at least the heating capacity of the hot water supply device 30 reaches the maximum condition once, a hot water discharge from the hot water supply device 30 is controlled so that a bath furnace 25 of an enforced circulation heating device 20 is operated, the heating capacity of the enforced circulation heating device 20 and the hot water supply device 30 is kept the maximum condition and the hot water discharge of the hot water supply device 30 is shown in an expression (I). Wherein, in the formula (I), T: set point of hot water supply temperature to bathtub 10, t0: water feeding temperature, A: maximum heating capacity of hot water supply device 30, B: maximum heating capacity of enforced circulation heating device 20 are expressed. |
