6.2.3 General Settings
• Record unit serial number on maintenance check lists
• Record values from controller display home page
6.2.4 Controller Checks
These checks look at setpoints, alarm actions, and group control.
• Check the sync date and time of the units (NTP may or may not be enabled).
• Check for any current alarms and take appropriate action as detailed within this manual.
• Download the complete contents of the folder with the name of product and serial number from the micro-SD
card. This folder contains historic alarm log, system log, parameter log, and data log files.
• Record parameters from the parameter log file that have changed from default since commissioning. These are
signified by an asterisk adjacent to the parameter ID in the log file. Verify with the customer why values have
changed since commissioned value.
6.2.5 Sensor Checks
• Check all fluid and ambient temperature/humidity sensors consistent with surface and air temperature
measurement device readings.
• Check pressure and flow sensor readings are consistent with other units in the group (if multiple units) and with
commissioned values.
6 Maintenance Proprietary and Confidential ©2025 Vertiv Group Corp. 69
Vertiv™ CoolChip CDU 600 Operation and Maintenance Guide
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