What Is Economizer?_
In data center cooling, an economizer leverages cooler outside air or water to supplement or replace chiller-based cooling. Air-side economizers draw in filtered outdoor air directly, while water-side economizers use cooling towers or dry coolers to reject heat. This approach lowers energy consumption during mild weather, but requires careful humidity and particulate control.
Technical Details
Air-side economizers typically use dampers, sensors, and controls to modulate outdoor air intake based on temperature and enthalpy setpoints. Water-side economizers often involve a heat exchanger that bypasses the chiller when the cooling tower return water is cool enough. The effectiveness depends on local climate conditions, and the system must be integrated with the facility's overall cooling architecture to avoid condensation or contamination. Proper commissioning ensures economizer modes activate only when they provide net energy savings without compromising IT equipment inlet temperatures.
How Leviathan Systems Works with Economizer
During typical data center deployments, we verify that economizer controls are correctly integrated with the liquid cooling and rack-level airflow management, especially in GPU-dense racks that reject high heat loads. We also coordinate with facility teams to ensure economizer setpoints align with the GPU cluster's operating temperature ranges.
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