Greenheck Plenum Fan APH-40

Disconnect the electrical supply

Inspect fan for moisture or dirt accumulations

Was moisture or dirt found on parts?

Locate and eliminate source of moisture or dirt, if found

Is there any paint deterioration?

Consider touch-up or repainting if paint deterioration begins

Are there signs of rust on machined parts?

Run each fan for a complete cycle

Bump each fan if not run completely

Check fan RPM when adjusting operating frequency

Consult manufacturer before changing fan operating conditions

Is there any unusual noise or vibration during operation?

Is there any visible condensation on the fan components?

Confirm that building supply voltage matches the voltage for which the unit is wired.

Disconnect and lock-out all power switches to fan.

Check all piping and wiring penetrations made by contractors for water tightness.

Check all fasteners, set screws and locking collars for tightness.

Rotate the fan wheel by hand and assure no parts are rubbing.

Check for bearing alignment and lubrication.

Check the V-belt drive for proper alignment and tension.

Check all guarding for secure attachment and non-interference with rotating parts.