Symptom Possible Cause Check or Remedy
Supply water temperature high.
Dew point margin
controlling water
setpoint.
Check if the dew point in the room is lower than the desired water temperature.
Cooling system not
running.
Check alarm history for related alarms.
Compressors off due to cycling at low pressure.
Compressors off due to high discharge pressure.
Table 10.1 Unit Diagnostics (continued)
10 Troubleshooting Proprietary and Confidential ©2024 Vertiv Group Corp. 89
Vertiv™ CoolPhase CDU Installer/User Guide
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