Fresh air ventilation equipment is an integral component ... The blower selected should have an aluminum non-sparking blower wheel to prevent metal and dust sparking that could ignite in the ...

This is usually the worst of the six different sounds. One cause for this sound is that the blower wheel came loose from the motor shaft, moved, and is hitting the blower housing. In this case, if no ...

DOUBLE CHECK IT: Each blower has a different motor horsepower, blower wheel size, and airflow rating. Make sure you use the correct fan table. November 26, 2018 When you measure static pressure, duct ...