UPS MAINTENANCE
Eaton 9395 UPS (450–825 kVA) Installation and Operation Manual S 164201725 Rev 4 www.eaton.com/powerquality
9-6
UPM Air Filters
Figure 9‐4. Three UPM Section Air Filter Locations
3. If the UPS is a Plus 1 or a two UPM model, check the Field Installed UPM
(FI-UPM) air filter (located behind the front panel) and wash or replace as
necessary. See Figure 9‐5 for the filter location. The FI-UPM filter size is
20”
44” 0.25”. Contact an Eaton service representative for a replacement filter.
To remove the filter:
a. Remove one top screw and two bottom screws securing the FI-UPM front
panel (refer to the Eaton 9395 Field Installed UPM Mechanical Installation
Manual listed in paragraph 1.8 on page 1-10.). Lift the panel straight up to
remove it from the panel hanger bracket at the top of the cabinet.
b. Pull the foam filter over the screw heads on the cabinet mounted studs and
remove the filter from the cabinet.
C A U T I O N
Verify washed filter is thoroughly dry before reinstalling.
c. Push the washed or new foam filter over the screw heads on the cabinet
mounted studs until seated against the cabinet.
d. Reinstall the FI-UPM front panel removed in Step a and secure with the
retained hardware.
4. Record maintenance results and any corrective actions in a suitable log.
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