High Discharge Pressure Fault; Low Level Fault; Low Inlet Pressure Fault - ITT Flowtronex SIlent Storm Installation Operation & Maintenance

HIGH DISCHARGE PRESSURE FAULT

Cause
High system pressure setting too low.
System pressure transducer reading high.
Isolation valve for DSR or main discharge is
closed.
DSR will not open fully.
Irrigation demand is reducing too quickly.

LOW LEVEL FAULT

Cause
Clogged or shut off supply pipe.
Clogged inlet screen.
Problem with level probes.
Level relay failure (inside control panel).

LOW INLET PRESSURE FAULT

Cause
Normally used on flooded suction horizontal or canned turbine stations
Inlet pressure switch is set too high.
Pressure sensing line to pressure switch is clogged
or valved off.
Pressure is actually low – static.
Cure
Press F1, F8, F11 and verify n70:0 is set to 60 seconds.
Compare display readout to the pressure gauge.
Calibrate if possible, and replace transducer if necessary
(FlowNet).
Open the valve.
The pilot valve is set too low. Adjust as necessary,
15 PSI over set pressure.
The needle valve on the DSR is too far open; adjust as
necessary.
The ball valve(s) at the inlet and/or cover tapping(s)
closed. Open the valves.
The indicating stem is bent and/or sticking.
Reprogram irrigation to stage down in steps.
Cure
Check the supply pipe for restrictions or closed valve.
Check and clean the inlet screen.
Inspect probes for correct insertion depth.
Look for dirty or corroded probes.
To be performed by a qualified person only.
Look for broken probes, probe holder, or wires.
To be performed by a qualified person only.
Check for loose or incorrect probe wiring.
To be performed by a qualified person only.
Verify ground continuity between the station and wet
well.
To be performed by a qualified person only.
Check relay for proper operation. Replace as required.
Cure
To be performed by a qualified person only.
Check the pressure switch setting.
(Located on lower left side of outside of enclosure.)
Ensure the valve is open, and blow out line if
necessary.
If the city supplied water, check with them.
If the water is supplied by a tank, check the tank level,
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