Technical data

TROUBLESHOOTING
CV ELECTRICAL POWER SYSTEM MAINTENANCE MANUAL 2A5A2-ELEC-MM-1-0 41
No
Problem
solved?
Yes
Measure voltage at UPS #2 outlets:
Outlets Acceptable Readings
2A5A2-OTL-EP02-3
2A5A2-OTL-EP02-5
2A5A2-OTL-EP02-6
120 ± 12 VAC
120 ± 12 VAC
120 ± 12 VAC
No
Voltage OK? Yes
Done
No
Problem
solved?
Yes
At the 208/120 VAC 3ø distribution panel
#2, reset breaker control UPS #2.
Reset UPS #2.
Replace UPS #2 (see Section 4.8,
Replacing a Control Power UPS)
Problem with:
Fluorescent Light
STBD
See Section 4.14, Replacing a Control
Room Fluorescent Light Assembly
Ground Fault
Monitor
Other
See Section 4.3, Replacing the
Ground Fault Monitor
See Section 4.10, Replacing a Power
Bar
Follow decision tree in Section 5.2,
Troubleshooting Subroutine – 10 kVA
480-208/120 VAC 3ø Transformer #1 or
#2 Power Check
Figure 6 Troubleshooting – Unit Plugged in UPS #2 Doesn't Work