| 摘要 |
PROBLEM TO BE SOLVED: To provide a water supply device capable of suppressing power consumption during a backup operation mode.SOLUTION: A water supply device 10 includes a water supply pipe 40, pumps 51, 52, a flow sensor 70, a pressure sensor 60 and a control board 53. The pumps 51, 52 are provided in the water supply pipe 40 and discharges water to the downstream. The flow sensor 70 is provided on the further downstream than the pumps 51, 52 in the water supply pipe 40, and detects at least a predetermined flow rate of the water. The pressure sensor 60 is provided on the further downstream than the pumps 51, 52 in the water supply pipe 40, and detects a pressure inside the water supply pipe 40. The control board 53 controls startup of the pumps 51, 52 on the basis of the detection result of the pressure sensor 60 in a state where the pressure sensor 60 is not out of order, and in the case where the pressure sensor 60 is out of order, controls the startup of the pumps 51, 52 on the basis of the detection result of the flow sensor 70.SELECTED DRAWING: Figure 1 |
