25-75 kW
User's and Installation Guide
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7.2 Performing Preventive Maintenance
The UPS system requires very little preventive maintenance. However, the system should be inspected
periodically to verify that the units are operating normally and that the batteries are in good condition.
Majority of the work must be performed by Eaton authorized service personnel. Only the actions described
in Chapter 7.2.1 DAILY maintenance and Chapter 7.2.2 MONTHLY maintenance are allowed for the user.
7.2.1 DAILY Maintenance
Perform the following steps daily:
1. Check the area surrounding the UPS system. Ensure the area is not cluttered, allowing free access to the
unit.
2. Ensure the air intakes (vents on the front doors) and exhaust opening (the back of the UPS cabinet
sections) are not blocked.
3. Ensure the operating environment is within the parameters specified in Chapter 3.2.1 Environmental and
installation considerations and Chapter 8 Technical data.
4. Ensure the UPS is in Normal Mode (Normal status indicator is illuminated). If an alarm lamp is illuminated
or the Normal status indicator is not illuminated, contact your service representative.
7.2.2 MONTHLY Maintenance
Perform the following steps monthly:
1. Monitor system parameters on the control panel (Chapter 6.2 Steps to operate the UPS).
2. If the optional air filters are installed, check them (located behind the front doors) and wash or replace as
necessary. Contact your service representative for replacement filters. To replace the filters:
a. Open the front door latch and swing the doors open.
b. Replace the filters.
c. Close the doors and secure the latch.
3. Record the check results and any corrective actions in a suitable log.
7.2.3 PERIODIC Maintenance
Periodic inspections of the UPS should be made to determine if components, wiring, and connections exhibit
evidence of overheating. Particular attention should be given to bolted connections. Maintenance procedures
should specify that the bolted connections be re-torqued.
NOTE
Work on energized circuit must be performed only by authorized personnel.
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