Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F 136
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The UPS system requires very little preventive maintenance. However, inspect the UPS system periodically to
verify that the UPS systems are operating normally and that the batteries are in good condition.
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Perform the following steps daily:
1. Check the area surrounding the UPS system. Ensure that the area is not cluttered, allowing free access to
the UPS.
2. Ensure that the air intakes (vents on the front doors) and exhaust opening (on top of the UPS cabinets) are
not blocked.
3. Ensure that the operating environment is within the parameters specified in
Chapter 14 Product Specifications and Figure 80.
4. Ensure that the UPS is in Normal mode (Normal status indicator is illuminated). If an alarm lamp is
illuminated or the Normal status indicators are not illuminated, contact your Eaton service representative.
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Perform the following steps monthly:
1. Monitor system parameters as described in Chapter 8 Using the Control Panel.
2. Check the air filters (located behind the front doors) and replace them as necessary. The left filter size is
16x"30x"1" and the right filter size is 14x"30x"1".
To remove filters:
a. Open the front door latch and swing the doors open.
b. Slide each filter up and remove from the cabinet.
c. Slide the new filters into the brackets until seated on the bottom brackets.
d. Close the doors and secure the latch.
3. Record the results of your checks and any corrective actions in a suitable log.
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Annual preventive maintenance should be performed only by authorized service personnel familiar with
maintenance and servicing of the UPS system. Contact your Eaton service representative for more information
about service offerings.
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NNOOTTEE DO NOT DISCONNECT the batteries while the UPS is in Battery mode.
Contact your Eaton service representative for battery maintenance. Battery replacement and maintenance
should be performed only by authorized service personnel.
Maintaining the UPS System
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