Eaton 93PM - Preventive Maintenance; Daily Maintenance; Monthly Maintenance

Figure 49. Warning label
Since each battery string is an energy source in itself, opening the battery circuit
breaker does not de-energize the voltage within the battery string.
DANGER
Do not attempt to access any internal area of the battery string. Voltages are
always present in the battery strings. If you suspect that a battery string
needs service, contact your service representative.
8.2 Preventive maintenance
The UPS system needs very little preventive maintenance. However, inspect the
system periodically to verify that the units are operating normally and that the
batteries are in good condition.
The majority of the service and maintenance work must be done by service
personnel qualified by Eaton. Only the actions described in Section
8.2.1 and
Section 8.2.2 can be done by the user.
8.2.1 Daily maintenance
Do this every day:
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
4.3.1 and Chapter 9 .
4. Examine 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.
8.2.2 Monthly maintenance
Do this once a month:
1. Examine the system parameters on the control panel (see Section 7.1.4 ).
Eaton 93PM UPS 30–200 kVA
User's and installation guide
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Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 108 (126)