Greenheck Fan 470658 MSX Motor Overamps, Troubleshooting, Adjust drives to reduce blower RPM

Troubleshooting

Motor Overamps

Air volume too high?

No

Actual static pressure

lower than design?

No

Blower rotation correct?

Yes

Motor voltage correct?

Yes

Motor horsepower too low?

No

Shorted windings in motor?

Yes

Everything is working

properly, consult factory.

Yes

Yes

No

No

Yes

Yes

Adjust drives or increase external static pressure as needed.

(Reference Blower Start-Up Step #5)

Adjust drives to reduce blower RPM.

(Reference Blower Start-Up Step #5)

Reverse blower rotation.

(Reference Blower Start-Up Step #2)

Provide proper power supply.

(Reference Blower Start-Up Step #1)

Resize motor.

Replace motor.

® Model MSX Make-Up Air 27