Technical data

CORRECTIVE MAINTENANCE
CV ELECTRICAL POWER SYSTEM MAINTENANCE MANUAL 2A5A2-ELEC-MM-1-0 20
14. Return valves and electrical switches to the state that they were in before this
procedure was performed.
15. Inspect and determine disposition of any parts removed. If applicable, dispose of
removed parts and/or fluids in accordance with local requirements.
16. Ensure the preceding steps were performed in accordance with local
requirements for SOC and tag in/out, as applicable.
0.
4.8 Replacing a Control Power UPS
WARNING!
Shock hazard! Verify power to the unit is isolated before performing this
maintenance procedure.
Drawing References
7533008 CV power system wiring diagram
7533009 Power system assembly (2A5A2)
7533010 Power system cable routing
7533011 CV electrical power system schematic (2A5A2)
7533316 Control power UPS and battery pack installation details
Special Tools
None
Spare Parts
569-COTS-ISE-0029 Control power UPS
Preconditions
None
Procedure
1. Follow instructions in Section 6.2, General Notes, regarding hazmat
requirements, torque specifications, inspection of mounting hardware, and use of
Nylok® nuts, as applicable.
2. Perform the following steps in accordance with local requirements for SOC and
tag in/out, as applicable.
3. At the
480 V 3Ø DISTRIBUTION PANEL, turn off BUS #1 MAIN DISCONNECT (2A5A2-CB-
EPO8-1) and
BUS #2 MAIN DISCONNECT (2A5A2-CB-EPO8-2) switches.
4. Remove the brackets securing the UPS.
5. Disconnect four (4) cables at the UPS.
6. Remove the UPS.
7. Install the new UPS.
8. Reconnect four (4) cables at the UPS.
9. Reinstall the brackets securing the UPS.