UPS Maintenance
80 Eaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F www.eaton.com/powerquality
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Do not dispose of the battery or batteries in a fire. Batteries may explode. Proper disposal of batteries
is required. Refer to your local codes for disposal requirements.
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Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin and eyes.
It may be toxic.
Do not discard the UPS or the UPS batteries in the trash. This product contains sealed, lead–acid
batteries and must be disposed of properly. For more information, contact your local recycling/reuse or
hazardous waste center.
Do not discard waste electrical or electronic equipment (WEEE) in the trash. For proper disposal, contact
your local recycling/reuse or hazardous waste center.
Using the UPS Maintenance Bypass Switch
The UPS maintenance bypass switch is located behind the UPS front door (see Figure 55).
The maintenance bypass switch is used to bypass the UPS during maintenance or servicing. The switch
provides a wrap-around bypass without shutting down the load. The SERVICE position on the switch allows a
service engineer to apply power to the UPS input and verify its operation while the load is powered through
bypass.
Figure 55. Maintenance Bypass Switch