S&C PureWave Operation And Maintenance Manual page 46

Maintenance
Annual Maintenance
− continued
Figure 26. Location of the air-inlet filter in the switchgear bay.
46 S&C Instruction Sheet 653-502
For the 250-kW and 500-kW PureWave UPS Systems, use the following steps
for the switchgear bay. (For the 750-kW and 1000-kW PureWave UPS Systems, go to
page 47.)
¨ Inspect the air-inlet vent located on the switchgear bay door. Clean any debris and
obstructions that can restrict air flow going into the PureWave UPS System.
¨ Inspect the air-inlet filter (inside of the switchgear bay door) for debris and obstructions
that can cause air-flow restrictions. The filter can be replaced by unbolting the mounts
with a ½-inch wrench (or socket). See Figure 26 for the location of the air-inlet filter.
¨ Air inlet filter replaced? YES or NO
¨ Why or why not? _____________________________________________________________
¨ Verified By:_________________________
(After the above is complete, go to the equipment testing procedures on page 48.)
(circle one)
Date: ___________
Air-inlet filter