To provide a water supply device in which starting frequencies of pumps are managed to a prescribed value, and a wasteful operation is excluded while equalizing operation loads in operating the plurality of pumps.
A water supply device in which a pump is continuously and forcibly operated on the basis of a forcible operation time variably set in a timer even when pump stop conditions are satisfied, includes: a cycle time setting portion for setting a time of one cycle of a pump operation; a calculating portion for subtracting a stop time just before the pump operation, and a remaining time when the operation time just before the pump operation is over the cycle time, from the set cycle time; and timer setting means setting 0 when a value of the result of the subtraction is negative, and setting the value when the value of the result of the subtraction is positive, as the forcible operation time.
OKAFUJI HIROSHI
TOMITA TOSHIO
JPH03206390A | 1991-09-09 | |||
JP3011335B2 | 2000-02-21 | |||
JPH09228961A | 1997-09-02 | |||
JP2011117347A | 2011-06-16 | |||
JP3076751U | 2001-04-20 | |||
JPH03206390A | 1991-09-09 | |||
JP3011335B2 | 2000-02-21 | |||
JPH09228961A | 1997-09-02 | |||
JP2011117347A | 2011-06-16 | |||
JP3076751U | 2001-04-20 |