AAF OptiFlo RC Series, Инструкция по установке, эксплуатации и обслуживанию

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GDED-IOM-215-A
Solution: Investigate further, check the wiring, fuses, settings on the pulse controller,
failure of the pulse controller
Issue: Lack of compressed air
Solution: Check compressed air supply, valves and gauges, any CA filters. Correct supply
pressure should be 90-100 psig
Issue:
Diaphragm valve failure – may be indicated by non-action or a continuous
hissing from one valve
Solution: Replace diaphragm and spring if faulty
Issue: Solenoid “pilot” valve malfunction. Listen for clicking of each solenoid and
momentary venting as solenoid is energized.
Solution: Replace solenoid
Issue: Air in leakage at hopper – at dust discharge device
Solution: In-leak of air at the hopper will lift collected dust back up onto the cartridges
causing high differential pressure. Check integrity of the air seal at the dust
disposal device (gate valve, barrel, rotary valve etc.) referring to the relevant
IOM and taking all safety precautions
Issue:
Moisture/Condensation
Solution: Free moisture on the cartridges will inhibit dust release and cause high
differential pressure. Run the pulse cleaning in timer mode with the fan off for
at least 15 minutes (“off line cleaning”) to release the sticky material.
Investigate the cause of the excessive moisture and consider remedies such
as elimination of rainwater in-leakage in the ductwork, process variations,
water in the compressed air manifold.
Issue:
Static Electric charge effects may occur with very highly electrically resistant
dusts (e.g. polypropylene dust) and in very dry applications
Solution: Switch to AAF Anti-Static cartridges.
Issue: Inlet overload situation
Solution: Excess airflow and/or excessive dust loading will cause high differential
pressure. Measure the airflow, and measure, or estimate the inlet dust loading.
Compare with the original design criteria.
Issue: Non-standard cartridges fitted
Solution: Replace with AAF supplied replacement cartridges