5
Operation Checklist
YORK
®
STACK FAN
When the unit is removed from storage, all grease should be
purged and replenished with fresh grease.
The following check list is recommended to ensure proper
operation:
Verify proper safety precautions have been followed:
Electrical power must be locked off.
Check fan mechanism components:
System connections are properly made and tightened.
Impeller and fan surfaces are clean and free of debris.
Rotate the impeller by hand to verify it spins freely and has not shifted in transit.
Check fan electrical components:
Motor is wired for proper supply voltage.
Motor was properly sized for power.
Motor is properly grounded.
All leads are properly insulated.
Trial “bump”:
Turn on power just long enough to start
assembly rotating.
Check rotation for agreement with rotation arrow.
Perform checklist again until unit is operating properly. Verify fastener tightness. These may have become
loose during shipment or installation.
Bushing set screw torque.
Bolts on inlet funnel.
Motor bolt torque.
Nuts holding housing frame to base and base to
ground (customer specifications).
Bushing fastener torque.
Ensure piezo ring tubing will not contact the impeller.