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UPS 225 - 275 kVA/300kVAPF0.8
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User’s and Installation Guide
Revision E
9.2 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.
9.2.1 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 (on top of the UPS cabinet
sections) are not blocked.
3.
Ensure the operating environment is within the parameters specified in Section 3.2.1 on page 11
and Chapter 10: “Product specifications”.
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.
9.2.2 MONTHLY maintenance
Perform the following steps monthly:
1.
Monitor system parameters as described in Section 7.2 on page 71.
2.
Check the air filters (located behind the front doors) and wash or replace as necessary. The left
(ISBM) filter size is 12”×20”×1” and the right (UPM) filter sizes are 19.5”×21.5”×0.5”. Contact your
service representative for replacement filters. To remove the filters:
a. Open the front door latch and swing the doors open.
b. Remove the filters from the cabinet-mounted studs.
c. Push the new filters onto the cabinet-mounted studs until seated against the cabinet.
d. Close the doors and secure the latch.
3.
Record the check results and any corrective actions in a suitable log.
9.2.3 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 retorqued to values listed in
this manual (see Table 3-5 on page 17).
9.2.4 ANNUAL maintenance
Annual preventive maintenance should be performed only by authorized service personnel familiar with
maintenance and servicing of the UPS system. Contact your service representative for more
information about service offerings.
9.2.5 BATTERY maintenance
Contact your service representative for battery maintenance. Battery replacement and maintenance
should be performed only by authorized service personnel.
