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UDI 12/2019
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Manual
UdiMatic
4 - FIRST COMMISSIONING AND ROUTINE START-UP
NOTE
: The differential pressure switch and timers have been preset to the proper settings. Do not adjust
prior to start-up.
4.1 - Filter initial pre-sets
1. The differential pressure switch is set to 5m (0.5 bar, 7 psi) maximum, do not adjust.
2. The flushing duration is set to:
3. Flushing interval (time between one flush to the next one) should be set according to water
conditions, the default is set at 2 hours.
4.2 - First commissioning
Check prior to to start-up the following. Adjust when required.
1. Check that the line pressure will always be at least 2 bar (20mWC) at the filter inlet during the
flushing cycle.
2. Check that there are no upstream pipeline restrictions.
3. Check that the filter is mounted in the correct flow orientation as indicated by the arrows on the
body.
4. Check that the flushing valve is mounted properly.
5. Check that the tubing connections are completed.
6. Check that power is available to the Filtron flushing controller.
7. Check that the flushing valve drain lines are installed.
8. Check that the upstream and downstream isolation valves are closed.
9. Check that adequate space is available around the filter for maintenance.
4.3 - Start-up
1. Slowly open the inlet valve to the filter allowing the filter to pressurize.
2. Check for any external leakage and eliminate.
3. Disconnect the control tube from the hydraulic piston and bleed it until all of the air is displaced by
water. Reconnect the control tube.
4. Slowly open the outlet valve of the filter (if installed).
5. Initiate a manual flushing; observe the inlet and motor chamber pressures (use three way valve and
manometer mounted on the control box). The motor chamber pressure should be between 0.8-1.5
bar below inlet pressure during the flushing cycle. Minimum inlet pressure during flushing cycle
should be 2 bar (30 psi) for all models.
6. Observe the differential pressure's build up across the filter. It is recommended to observe at least
one full cycle to ensure that the system is operating properly.
NOTE:
At any given time pressing the manual flushing push button will cause one flush cycle. The flushing
cycle duration can be adjusted via the controller, it is recommended not to shorten or prolong the flushing
time for it will not clean the whole screen area or use an excessive amount of water.
Type
Time (s)
Type
Time (s)
785290
1"
8
7851E94
4"
14
7851B91
1½"
12
7851964
4"
16
7851B92
2"
12
785196
6"
16
7851B93
3"
12
785198
8"
16
