Greenheck TSU Base Unit Manual (464441) - Manual (Page 23)

Make-Up Air Unit 23
®
Motor Overamps
Troubleshooting
Air volume too high?
Adjust drives or increase external
static pressure as needed.
(Reference Blower Start-Up – Step 5)
Motor horsepower too low?
Resize motor.
Motor voltage correct?
Provide proper power supply.
(Reference Blower Start-Up – Step 1)
Blower rotation correct?
Reverse blower rotation.
(Reference Blower Start-Up – Step 2)
Actual static pressure
lower than design?
Adjust drives to reduce blower RPM.
(Reference Blower Start-Up – Step 5)
No
No
Yes
Yes
Yes
Yes
No
Yes
No
No
Shorted windings in motor?
Replace motor.
Yes
Everything is working
properly, consult factory.
No