Vertiv CoolChip CDU 600 - Automatic Operation; Primary Circuit Operation

Figure 4.13 Control System Calibration Screen
4.3 Automatic Operation
After commissioning, the unit is ready to run in automatic mode. Press the Start/Stop button on the Home screen (see Figure
4.1 on page16 ) and select the ON button.
Figure 4.14 Switch CDU Control System ON/OFF
4.3.1 Primary Circuit Operation
The primary fluid temperature is monitored at the inlet to the CoolChip CDU 600 cabinet. The nominal cooling performance
of the CDU has been calculated on a chilled water temperature between 4°C and 10°C (40°F and 50°F).
• If the primary temperature falls below the default of 4°C (40°F), an A30—Primary Fluid Low Temp alarm is
generated. This alarm remains present until the temperature rises above the default of 1°C (2°F) hysteresis.
• if the primary temperature rises above the default of 11°C (52°F), an A31—Primary Fluid High Temp alarm is
generated. This alarm remains present until the temperature falls below the default of 1°C (2°F) reset hysteresis.
42 Proprietary and Confidential ©2025 Vertiv Group Corp. 4 Operation
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide