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Maintenance
General maintenance for the GJI model:
•
Motor bearings are sealed and do not need lubrication.
•
Inspection and cleaning should be limited to remove any dirt accumulation on the fan wheel, fan inlet and fan
discharge.
If the fan environment possesses a consistent humidity of 80% or more, the fan must be run for 2 hours on high,
once a month to remove condensation.
Paint Touch-Up for Scratched Areas
For field paint repairs, refer to replacement part HAZ2920 Concrete Gray, Touch Up Paint,
Spray Can RAL 7023.
Troubleshooting
Problem
Excessive noise
Fan doesn't operate
Low airflow
* Excessive fan speed may overload the motor and result in motor failure. Do not exceed the maximum cataloged
rpm of the fan.
®
Cause
Wheel unbalance
Impeller blocked
Electrical supply
Control signal
Inlet / outlet blocked
Corrective Action
Clean all dirt off wheel. Check wheel balance, replace if
necessary.
Inspect and remove debris from inlet and outlet.
Check fuses/circuit breakers. Check for switches turned
off or disconnected. Check for correct supply voltage.
Verify control signal and wiring. Check connections to
terminal strip.
Remove debris from inlet and outlet.
GreenJet – Mixed Flow Jet Fan
7
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