UPS MAINTENANCEEaton 9395 Plus 1 UPS (225–275 kVA) Installation and Operation Manual 164201710 Rev 2 www.eaton.com\powerquality9-2 Proper disposal of batteries is required. Refer to your local codes for disposalrequirements. Do not dispose of batteries in a fire. Batteries may explode when exposed toflame. Do not open or mutilate batteries. Released electrolyte is harmful to the skin andeyes. It may be toxic.9.2 Performing Preventive MaintenanceThe UPS system requires very little preventive maintenance. However, the systemshould be inspected periodically to verify that the units are operating normally and thatthe batteries are in good condition.9.2.1 DAILY MaintenancePerform 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 and panels) and the exhaustopenings (on top of the UPS cabinet) are not blocked.3. Ensure the operating environment is within the parameters specified inparagraph 3.2.1 on page 3-1 and Chapter 10, “Product Specifications.”4. Ensure the UPS is in Online mode (Online status indicator is illuminated). If analarm lamp is illuminated or the Online status indicator is not illuminated, contactan Eaton service representative.9.2.2 MONTHLY MaintenancePerform the following steps monthly:1. Monitor system parameters as described in paragraph 7.2, “Using the ControlPanel,” on page 3-1.2. Check the UPS air filters (located behind the front panels) and wash or replace asnecessary. See Figure 9‐1 for filter locations. The ISBM filter size is12”20”0.25” and the UPM filter sizes are 20”44”0.25”. Contact an Eatonservice representative for replacement filters. To remove the filters:a. Remove one top screw and two bottom screws securing each UPM frontpanel (see Figure 4‐1 on page 4-3). Lift each panel straight up to remove itfrom the panel hanger bracket at the top of the cabinet.b. Unfasten the front door latch and swing the door open (see Figure 4‐2 onpage 4-4).c. Pull the foam filters over the screw heads on the cabinet mounted studs andremove the filters from the cabinet.
