The majority of the service and maintenance work must be performed by service
personnel qualified by Eaton. Only the actions described in Section and Section
8.3.2 Monthly maintenance are allowed to be done by the user.
8.3.1 Daily maintenance
Do this daily.
1. Examine the area surrounding the UPS system. Make sure that the area is
not cluttered, allowing free access to the unit.
2. Examine that the air intakes (vents on the front door of the UPS cabinet) and
the exhaust openings (at the rear of the UPS cabinet) are not blocked.
3. Make sure that the operating environment is within the parameters specified
in Section 4.4.1 Environmental considerations and Section 9.1 About
technical data.
4. Make sure that the UPS is in the normal mode (the normal mode status
indicator is illuminated). If an alarm lamp is lit or the normal mode status
indicator is not lit, contact an Eaton service representative.
8.3.2 Monthly maintenance
Do this once a month.
1. Examine the system parameters on the control panel (see Section
7.2.4 Menu structure of the 93PM G2 UPS).
2. If the optional air filters are installed, examine them (located behind the front
doors) and wash or replace them, if needed. Contact your service
representative for replacement filters. To replace the filters:
a. Open the UPS front door.
b. Replace the filters.
c. Close the UPS front door.
3. Record the check results and any corrective actions in a service log.
8.3.3 Periodic maintenance
Inspect the UPS periodically to determine if components, wiring, and connections
exhibit evidence of overheating. Pay particular attention to bolted connections.
Bolted connections must be re-torqued periodically.
© Eaton Corporation plc 2020. All rights reserved. Revision: 001 Document ID: P-164000956 112
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Eaton 93PM G2 UPS 50 – 360 kVA User’s and Installation Guide
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