| 摘要 |
PROBLEM TO BE SOLVED: To reduce electric power and time required for scale removal in a scale removal operation using an electrolyzer.SOLUTION: A temperature adjustment water supply machine includes: an electrolyzer 41 that includes a water heat exchanger 21 for heating water, a container 47 and an electrode pair 49 provided in the container 47, and removes a scale component contained in water sent to the water heat exchanger 21; and a control unit 32. The control unit 32 executes a normal operation that precipitates the scale component contained in water by performing electrification to the electrode pair 49, and a scale removal operation that inverts the polarity of the electrode pair 49 from the state of the normal operation and performs electrification to the electrode pair 49 for a predetermined period at a current value higher than a current value at the normal operation. |
