Orival OR-02-PE, Operation And Maintenance Manual, Page: 34 / 51

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • (201) 568-3311
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9.2 - The filter rinses continuously (rinse valves open but do not close).
1. Check the solenoid valve to determine if it is being energized continuously by the
Controller. If not, go to step 4.
2. If the solenoid is continuously energized, check the time setting for the length of
the rinse cycle to ensure that it is set properly (this time should be set between
5-15 seconds, depending on the model of the filter.) Correct, if miss set.
3. The problem may lie within the controller. Contact the office listed on the front of
this manual for assistance.
4. If the solenoid valve is not continuously energized, disconnect the tubing to the
top portion of the rinse valves and check for flow from this tube. If there is low
flow or pressure, the orifice connecting the upper and lower chamber of the
manifold may be partially or fully blocked. Isolate the filter, remove the manifold
and unplug this orifice using a rigid piece of wire.
5. If flow is present at line pressure, the rinse valve actuators should be replaced.
9.3 - The filter cycles continuously (rinse valves open and close repeatedly).
1. Check the preset on the differential pressure switch. This should be set to 7 psi.
2. Check the flow rate through the filter to ensure that this value is within the maximum
flow rating as indicated on the appropriate FILTER DATA SHEET. If the flow is
too high, adjust as necessary.
3. Check the differential pressure across the filter following a rinse cycle. If the
differential does not recover, go to Step 12 of Section 9.1.
4. If the flow is within the operating range of the filter and the differential recovers, a
larger screen and/or additional filters may be required. Contact your Orival
representative for assistance.
9.4 - Controller inoperative.
1. Check to ensure that the switch on the controller is in the
ON position.
2. Check to ensure that power is available to the controller.
3. Check the fuses inside the controller and replace as necessary.
4. For further assistance, contact the office listed in the front of this manual.