UPS Maintenance
8-2
Eaton 9EHD UPS (80-200 kVA, 380/400/415V) Installation and Operation Manual
The UPS system requires very little preventative maintenance. However, the system should be inspected
periodically to verify that the units are operating normally and that the batteries are in good condition.
8.2.1 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 door of the UPS cabinet and the exhaust openings (on the rear of
the UPS cabinet) are not blocked.
3. Ensure the operating environment is within the parameters specified in paragraph 3.2.1 and Chapter 9,
“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 an Eaton service representative.
8.2.2 MONTHLY Maintenance
Perform the following steps monthly:
1. Monitor system parameters as described in paragraph 6.2, “Using the Control Panel”.
2. Check the UPS air filters (located behind the front door) and wash or replace as necessary. See Figure 8-1
for filter location. Contact an Eaton service representative for replacement filters. To remove the filters:
a. Unfasten the front door by lifting the latch from the bottom and turning to the right (counterclockwise)
and swing the door open (see Figure 6-1).
b. Remove the upper and lower foam filters from the frame on the front door.
c. Replace the washed or new foam filters into the frame on the front door.
d. Close the front door and secure the latch.
3. Record maintenance results and any corrective actions in a suitable log.
CAUTION
Verify washed filter is thoroughly dry before reinstalling.
8.2
Performing Preventative Maintenance
Summary of Contents for 9EHD Series
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