Alpha Technologies Continuity: 6K_10K - Manual (Page 49)

0170012-J0 Rev A Page 47
B.5. Maintenance Operation Procedure
1. Refer to the operations chapter to switch all UPS to Bypass supply mode.
2. Switch MTBS box to BYPASS position first. And then switch off all output breakers (CBo). Now the load is
supplied through MTBS box from Bypass.
3. Make sure the UPS that needs maintenance is completely shutdown first. Then switch off the output breakers
(CBo) and input breakers(CBi).
4. Proceed with maintenance.
5. Repeat the steps in section B.4 after you have completed repairing/maintaining, to ensure the load is supplied
from the UPS.
The maintenance work is complete.