Figure 4.20 Control Screen Alarm Identification
4.6 Troubleshooting Alarms
Alarms are events which may cause the unit to shutdown and should be immediately investigated.
IMPORTANT! Table 4.41 on the next page provides the full list of all alarms. However not all are necessarily active,
depending on the unit configuration. For example, if the CDU has not been fitted and configured for a primary filter,
then the associated A29—Filter Dirty alarm will not be active.
Alarms that are indicated with an asterisk beside the code number may not be active depending upon unit configuration.
Severity classifications:
1. Unit shutdown. (Shutdown ITimmediately.)
2. Urgent alarm. (Immediate investigation required, prepare to shut down IT if needed.)
3. Non-urgent alarm. (Investigate within 4 days.)
4. Information only. (Respond when required or at PPM.)
In Table 4.41 on the next page , SC indicates the severity classification. These classifications are suggested only. Customers
may wish to assign their own ratings.
4 Operation Proprietary and Confidential ©2025 Vertiv Group Corp. 51
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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