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UDI 5-3-2020
Maintenance Manual - 6Matic
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The flushing cycle will be activated on pressure differential, time or manual:
1. When the predetermined differential pressure between inlet and outlet of the filter is reached (as
preset on the D.P. Switch, usually 0.5 bar / 0.75 psi).
2. Time interval between one flushing to the next one (prefixed at the controller – can be changed by
the operator) - guarantees that the time passed from the last self-cleaning process will not be longer
than the pre-set value determined by the operator.
3. Manually initiated flushing by pressing a button on the controller.
Testing the pressure differential switch
When functioning correctly, creating a pressure drop by means of closing the valve (75) on the outlet
side of the filter, will result in a flushing cycle of the filter. Please note that during the closing of the
testvalve a small amount of water will be vented to the atmosphere.
C. Continuous flushing
The fine sintered screen is flushed continuously, through the suction nozzles. The flushing valve and
the worm-gear motor are activated continuously.
The "Continuous Flushing" is selected manually by the operator; the selector is located on the electrical
board.
