Data Center Cooling System Checklist
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System Overview & Documentation
Verify documentation, system diagrams, and operational procedures are current and accessible.
Describe the overall cooling system architecture and design.
Upload the current data center cooling system schematic/diagram.
Date of last cooling system design review.
Briefly summarize the latest significant changes or upgrades to the cooling system.
Cooling System Type (e.g., Chilled Water, Direct Expansion, In-Row)
Cooling System Capacity (kW or Tons)
Document Location (Physical and/or Network)
Environmental Monitoring
Assess temperature, humidity, and airflow readings across the data center and cooling system components.
Ambient Temperature (Data Center)
CRAC/CRAH Supply Air Temperature
CRAC/CRAH Return Air Temperature
Humidity (Data Center)
Differential Pressure (Air Filters)
Airflow Direction Verification (Visual Inspection)
Notes/Observations on Environmental Readings
Date of Environmental Monitoring
Chillers (If Applicable)
Detailed inspection and verification of chiller operation, efficiency, and maintenance records.
Chiller 1 Water Inlet Temperature (°C)
Chiller 1 Water Outlet Temperature (°C)
Chiller 1 Chilled Water Flow Rate (GPM)
Chiller 1 Energy Consumption (kWh)
Chiller 1 Compressor Status
Last Oil Change Date
Any unusual noises or vibrations observed?
Upload Vibration Analysis Report (if applicable)
Cooling Mode
Cooling Towers (If Applicable)
Focus on water quality, fan operation, and overall cooling tower efficiency.
Cooling Tower Water Inlet Temperature (°C)
Cooling Tower Water Outlet Temperature (°C)
Cooling Tower Fan Speed (RPM)
Cooling Tower Water Flow Rate (GPM)
Water Treatment Type
Last Water Treatment Analysis Date
Observations regarding water quality (clarity, color, etc.)
Fan Motor Condition
Attach recent cooling tower performance report (if available)
Computer Room Air Conditioners (CRAC/CRAH)
Inspect CRAC/CRAH unit operation, airflow, and filter status.
Supply Air Temperature (°C/°F)
Return Air Temperature (°C/°F)
Delta T (°C/°F)
Chilled Water Pressure (PSI/Bar)
Chilled Water Flow Rate (GPM/LPM)
Air Filter Condition
Fan Motor Operation
Any unusual noises or observations?
Last Filter Change Date
Pump Systems
Review pump performance, maintenance, and leak detection.
Pump 1 Flow Rate (GPM)
Pump 2 Flow Rate (GPM)
Pump 1 Discharge Pressure (PSI)
Pump 1 Motor Current (Amps)
Pump 1 Vibration Status
Pump 1 Bearing Noise
Last Coupling Alignment Date
Notes/Observations regarding pump performance
Air Distribution
Assess airflow pathways, obstructions, and containment effectiveness.
CRAC/CRAH Unit Airflow (CFM) - Verify against design specifications
Underfloor Air Pressure (inches of water gauge) - Measure at critical locations
Containment Integrity - Visual Inspection (Hot Aisle/Cold Aisle)
Identify any Airflow Obstructions
Detailed Observations/Notes on Air Distribution
Floor Tile Condition (for raised floors)
Specific Location of Airflow issues
Power Supply to Cooling Systems
Check power integrity and redundancy to the cooling infrastructure.
UPS Voltage (V)
UPS Load (kW)
Generator Voltage (V)
Generator Load (kW)
UPS Bypass Status
Last UPS Load Test Date
Last Generator Test Date
Notes on Power Supply Conditions
Alarm Systems and Trending
Verify alarms are functioning correctly and trending data is analyzed for anomalies.
Current Temperature Threshold Alarm Setting (CRAC/CRAH)
Current Humidity Threshold Alarm Setting
Alarm Acknowledgement Procedure Followed?
Date of Last Alarm System Test/Calibration
Description of any recent alarm events and corrective actions taken
Which alarm notifications are configured?
Alarm system logs reviewed?
Maintenance Records & Schedules
Confirm adherence to preventative maintenance schedules and review maintenance logs.
Last Preventative Maintenance (PM) Date
PM Task Completion Percentage (if ongoing)
Summary of Last PM Performed (including findings & actions)
Upload PM Report/Documentation
Next Scheduled PM Task(s)
Date of Next Scheduled Maintenance
Notes/Comments on Maintenance Schedule Adherence
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