Aaf-international Type W RotoClone User Manual download pdf (Page 11)

5.0 Troubleshooting

5.1 Water Entrainment - Excessive discharge of water in the exhaust

may be due to the following:

• Incorrect rotation (correct rotation is counter-clockwise, when

viewed form the drive end).

• Incorrect size cone spray or auxiliary nozzles and incorrect spray

pattern (i.e. flat spray at 7 o’clock position viewed from the inlet

and parallel to blades and cone spray to be centered at wheel).

Inlet spray should just miss inlet perimeter as it passes into

the scroll.

• Disturbances at inlet, such as elbows or branch entries, causing

unbalanced airflow or dust loading (see Section 2.3).

• Bent blade tips and/or obstructions in impeller such as rags,

collected material buildup, etc.

• Pluggage of drains.

• Incorrect outlet piece location. The bottom of the outlet piece

should never be above the bottom of the RotoClone scroll.

Any gasketing that has squeezed out should be removed.

• Improper gasketing of water cone, or damage/wear of the

water cone.

• Incorrect water pressure.

5.2 Dust Entrainment - Excessive entrainment of dust with the

cleaned air may be due to the following:

• Equipment running dry or with insufficient water - because

of clogged spray nozzles or strainer, or low water pressure,

(40 lb. minimum pressure required at nozzles).

• Obstructions in impeller blade hooks.

• On Arrangement D, spray nozzle in precleaner turned.

Flat spray must discharge in a vertical plane.

• Dust loading too heavy.

• Particulate size too small to be captured.

• Disturbances at inlet, such as elbows or branch entries, causing

unbalanced airflow or dust loading (see Section 2.3).

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Aaf-international Type W RotoClone User Manual Page 11