| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To control a liquid amount injected to the inside of a hot-water tank from a water supply unit by changing a position where a plurality of limit switches sense a floating ball by utilizing a plurality of liquid level adjusting keys. <P>SOLUTION: This machine includes the hot-water tank 1, a storage tank 2, the water supply unit 3, a liquid level sensor 4 and a control unit 5. The storage tank 2 is communicated with the hot-water tank 1. The water supply unit 3 is communicated with the hot-water tank 1. The liquid level sensor 4 is provided with the plurality of limit switches 41a, 41b, 41c and one floating ball 42. The control unit 5 is provided with the plurality of liquid level adjusting keys 51a, 51b, 51c, and the plurality of liquid level adjusting keys 51a, 51b, 51c are constituted so as to be connected electrically to the plurality of limit switches 41a, 41b, 41c and the water supply unit 3. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
