46
S&C Instruction Sheet 653-502
Maintenance
Annual Maintenance
− continued
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
(circle one)
¨
Why or why not? _____________________________________________________________
¨
Verified By:_________________________ Date: ___________
(After the above is complete, go to the equipment testing procedures on page 48.)
Figure 26. Location of the air-inlet filter in the switchgear bay.
Air-inlet filter