Pre-Start-Up Checks; Fan Operation; Fan Inspection - Greenheck DC Installation, Operation And Maintenance Manual

Pre-Start-Up Checks

1. Disconnect and lock-out all power switches to fan.
2. Check all fasteners and set screws on the universal
ceiling mount, mounting ball, mount cover, upper
motor cover, impeller, motor/hub assembly, hub
plate, and accessories for tightness.
3. Rotate the fan impeller by hand to ensure that it
rotates freely and does not rub on the hub plate or
come into contact with any obstructions.

Fan Operation

IMPORTANT: If unusual vibration or oscillating
movement is observed during fan operation,
immediately discontinue use of the fan and contact the
manufacturer or a suitably qualified maintenance/repair
technician.
1. When the fan is started, observe the operation
and check for any unusual noise, vibration or
overheating. Refer to the Troubleshooting section
of this manual if a problem develops.

Fan Inspection

DANGER
Disconnect and secure to the 'OFF' position all
electrical power to the fan prior to inspection or
servicing. Failure to comply with this safety precaution
could result in serious injury or death.
DANGER
Pour écarter les risques de blessure grave ou de mort,
débrancher et verrouiller l'alimentation électrique en
position « Arrêt » avant tout contrôle ou entretien.
®
4. Check all electrical connections for proper
attachment.
5. Verify that the fan is hanging so that the airfoils
and downtube are level and the fan is plumb to
the floor. Make sure that the tab on the universal
mount remains inside the groove on the mounting
ball if adjustments are made to the fan's hanging
position.
2. With the system in full operation, measure current
input to the VFD and compare with the FLA ratings
in the tables above to determine if the motor/VFD
system is operating under safe load conditions.
3. Keep approaches to fan clean and free from
obstruction.
Inspection of the fan should be conducted at the first 30
minute and 24 hour intervals of satisfactory operation.
• 30 Minute Interval - Check all fasteners for
tightness. Adjust and tighten as necessary.
• 24 Hour Interval - Inspect all fan components.
Check all fasteners and safety retention cable.
Adjust and tighten as necessary.
Overhead Ceiling Fans 19