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Shut Down the UPS System into Maintenance Bypass Operation

NOTE: Only operate a disconnect device when the associated disconnect device indicator lamp is illuminated.
  1. From the centralized UPS system display in the I/O cabinet: Select Control > Transfer to bypass operation.
  2. Close the maintenance bypass disconnect device MBB.
  3. Open the system isolation disconnect device SIB.
  4. Open the battery disconnect device(s).
  5. Open the unit input disconnect device UIB.
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