| 摘要 |
<p>Laundry or dishwashing machine programme control device, in which the water supply is delivered under control of magnetic valves supplied with soft water from an ionic exchange water softener, is provided with a regenerating valve which is connected in parallel with a timer controlled waste water pump on the one hand and to the change-over contacts of the water level monitors on the other hand. The relevant change-over contact controls the operative time interval of the valve. The regenerating valve is responsible for optical dispensing of water softener to the water supplied to the relevant valve line and the contact of the level monitors are arranged such that taking into account the flow rate of the valve the time interval needed between the switching on of the valve and the tripping of the pump corresponds the required amt. of softener to be dispensed.</p> |
