Greenheck Plenum Fan APH-24

Is the fan stored in a humid, dusty, or corrosive atmosphere?

Rotate the fan and purge the bearings if stored in a humid, dusty, or corrosive atmosphere.

Inspect the fan for moisture or dirt accumulations.

Record any inspection and maintenance performed.

Was moisture or dirt accumulation found on parts?

Describe the source of moisture or dirt and actions taken to eliminate it.

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?

Is there any visible condensation on the fan components?

Check for wear, tension, alignment, and dirt accumulation on V-belt drives

Are the sheaves free from grooves or wear?

Are all belts being replaced on multiple groove drives?

Loosen belt tension before removing belts

Ensure slack in each belt is on the same side of the drive after replacement

Measure belt deflection halfway between sheave centers (in inches)

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. Remove any dirt or debris.

Check for bearing alignment and lubrication.

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

Check all guarding for secure attachment and no interference with rotating parts.