Troubleshooting Tips
Low Air Velocity
1. Check pre-filter media (only with optional pre-filter); replace or clean as necessary
2. Adjust variable speed control for higher blower output.
3. Check power for proper voltage, amperage, and distribution frequency.
4. Replace HEPA/ULPA filter if the velocity remains low.
High Air Velocity
1. Adjust variable speed control for lower blower output.
Non-Laminar Flow and/or
Excessive Contamination
1. Ensure that no large obstructions are upstream of airflow pattern.
2. Determine that no other air-moving devices are operating in or around cleanroom which could disrupt the
room's airflow pattern.
3. Check air velocity and if low, conduct the 'Low Air Velocity' procedure outlined above.
4. Conduct smoke and photometer test on HEPA/ULPA filter. Seal or replace.
Motor Keeps Shutting Off
1. Check if unit is ducted.
2. If no, contact Price at criticalenvironments@priceindustries.com.
3. If yes, check inlet pressure, if positive, re-balance until inlet pressure is zero.
LED Light Turned Red
1. Refer to 'Motor Will Not Run' procedure outlined below.
LED light Turned Yellow
1. Replace filter.
Motor Will Not Run
1. Check that motor has power at correct voltage.
2. Check that the speed controller has power.
3. Check control mode on speed controller and ensure setpoint is not 0%.
4. Check control harness between speed controller and motor
If experiencing further issues with unit, contact Keystone Support at
KeySupport@KeystoneCleanAir.com
or
www.KeyStoneCleanAir.com
.
For more information visit
KeystoneCleanAir.com
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Fan Filter Units |
Troubleshooting
