| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water supply apparatus that can supply stable and highly reliable water suitable for usage conditions. <P>SOLUTION: The water supply apparatus includes: a control means for an ejection pressure constant control mode, the control means that controls an output frequency of an inverter circuit to keep an ejection pressure of a pump constant; a control means for a current value constant control mode, that controls an output frequency of the inverter circuit so that a driving motor rotates at as high a rotational speed as possible in a range where the current flowing in the motor for driving the pump does not exceed an acceptable current value; and a control mode means for selecting either of the control modes. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
