5
5
Start-Up Procedure
Considerations for Initial Start-Up
• For units with independent fan control, see
Page 41
.
• For units with VFDs, see
Page 15
.
• For units with vibration cutout switches, see
Page 40
.
General
• If the unit is mounted on vibration isolators or isolation rails (by others), refer to the
vibration isolation manufacturer’s guidelines before loading/unloading weight from the
unit.
• Verify fan and unit pump motors are disconnected and locked out.
Cleaning
• Drain the cold water basin with the strainer in place.
• Remove all dirt and debris from the fan guard(s).
• Inspect and clean all spray nozzles.
• Clean all mechanical components, such as the fan and motor.
• Flush the cold water basin interior to remove any accumulated dirt and debris.
• Remove, clean, and replace the strainer.
Inspection
• Conduct external inspection of the equipment. Check for leaks, corrosion, and any
structural damage.
• Conduct internal inspection of the equipment. Check for anything unusual such as
structural or mechanical component damage.
• Inspect piping and connections.
• Thoroughly inspect the fan(s) for any mechanical or physical damage.
• At seasonal start-up or after prolonged shutdown, check the motor insulation with an
insulation tester prior to the motor start-up.
• For belt drive units, prior to seasonal start-up, check and adjust the belt tension.
At
initial start-up, the belt tension may not require adjustment as the drive will be
properly tensioned at the factory prior to shipment.
• For gear drive units, verify adequate oil level and check all fittings to ensure there
are no visible leaks. Refer to “Gear Drive System” on
for initial start-up
instructions.
• For ENDURADRIVE
®
Fan System Units, Refer to
Page 14 for initial start-up
instructions.
Unit Operation and
Storage
Start-Up Procedure
Considerations for Initial
Start-Up
General
Cleaning
Inspection
Start-Up
DANGER:
Rotating equipment
will cause severe personal injury
or death to persons who come in
contact. Do not perform any service
on or near the fans, motors, and
drives, or inside the unit without
first ensuring that the fans and
pump motors are disconnected,
locked out, and tagged out.
