Orival OR-02-PE, Operation And Maintenance Manual, Page: 26 / 51

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • (201) 568-3311
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SECTION 4 - FIRST COMMISSIONING AND ROUTINE START-UPS
NOTE: The differential pressure switch (DPS) has been preset for proper operation.
Do not adjust prior to start-up
4.1 - FIRST COMMISSIONING
1. Check that the line pressure will always be at least 30 psig at the filter inlet
during the rinse cycle with the rinse valve(s) open.
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 filter body.
4. Check that the rinse valves are mounted as described in Section 3.1 A.
5. Check that tubing connections are completed as described in Section 3.1 C.
6. Check that power is available to the Controller, but that the power switch is in
the OFF position.
7. Check that the solenoid valve(s) are properly wired as indicated in the
electrical Schematic provided with the controller.
8. Check that the rinse valve and solenoid valve drain lines are installed as
described in Section 3.2 B.
9. Check that the upstream and downstream isolation valves are closed.
10. Check that adequate space is available around the filter for maintenance as
indicated on the included FILTER DATA SHEET.
4.2 - START-UP
1. Slowly open the inlet isolation valve to the filter, allowing the filter to
pressurize.
2. For models with a hydraulic piston, disconnect the control tube at the end and
bleed until all of the air is displaced by water. Reconnect the control tube.
3. For models with a hydraulic piston, remove the piston’s drain tube and fitting
from the PVC shield and slide the shield to the back half of the hydraulic
piston and check to ensure that the piston is at the top of its stroke. At this
point, the anti-rotational pin should be closest to the filter body.
4. Check for any external leakages and eliminate.
5. Check to ensure that the filter inlet pressure is higher than 30 psig.
6. Ideally, a manual rinse should be initiated with the filter dead headed. Close
the bypass valve and initiate a manual rinse cycle as described in the
Control System manual. During this rinse, observe the inlet and hydraulic
motor chamber pressures. Normally, during the rinse, the hydraulic motor
chamber pressure should ideally fall between 25 and 40 % of the filter inlet
pressure, as
described in Section 3.1 F. The exception is for high-
pressure applications. If, during the rinse, the pressure difference between
the filter inlet and hydraulic motor chamber exceeds 50 psi, try throttling