Technical data

CORRECTIVE MAINTENANCE
CV ELECTRICAL POWER SYSTEM MAINTENANCE MANUAL 2A5A2-ELEC-MM-1-0 28
4.14 Replacing a Control Room Fluorescent Assembly
WARNING!
Shock hazard! Verify power to the unit is isolated before performing this
maintenance procedure.
Drawing References
7533008 CV power system wiring diagram
7533011 CV electrical power system schematic (2A5A2)
7533125 Lighting system assembly
7533127 Lighting cable routing
Special Tools
None
Spare Parts
DM 2 32 120 ES Fluorescent lamp – vapor proof, 2L x 4FT
GOB48271202 Fluorescent dimming ballast – Lutron
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 208/120 VAC 3 ∅ distribution panel,
BUS #2, turn off breaker CB 4, CV
ENTRANCE OUTLET, CONTROL ROOM LIGHT,
and EMERGENCY LIGHT.
4. Remove the light bulb cover in the defective assembly.
5. Remove both fluorescent light bulbs.
6. Open the ballast cover.
7. Disconnect the power wires to the ballast.
8. Remove the ballast.
9. Install the new ballast. For the port fluorescent lights, use GOB48271202,
fluorescent dimming ballast – Lutron. For starboard lights, use DM 2 32 120 ES,
fluorescent lamp – vapor proof, 2L x 4FT.
10. Reconnect the power wires to the ballast.
11. Close the ballast cover.
12. Reinstall fluorescent light bulbs.
13. Reinstall the light bulb cover.