Chiller Units

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Efficient chiller solutions for Data Center Cooling

STULZ chiller units are designed to support high cooling capacities with optimized energy efficiency. From industrial chillers to advanced water‑cooled chillers and Free Cooling chiller solutions, STULZ systems enable reliable chilled water supply for data centers and industrial processes. With flexible system designs and intelligent control concepts, STULZ chillers support efficient cooling operation and long-term operational reliability.

Use case	Suggested product
Large data centers with high cooling demand	CyberCool WaterTec
Central chilled water systems	Explorer WSW
Industrial cooling applications	Explorer WPA
Indoor installation requirements	CyberCool Indoor
Integrated free cooling concepts	CyberCool Free Cooling Booster
Flexible and scalable chiller solutions Flexible chiller solutions for a wide range of applications	CyberCool Explorer WS

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Why choose STULZ Chillers?

High efficiency across a wide range of cooling capacities
Available with water-cooled and free cooling configurations
Flexible solutions for data centers and industrial applications
Proven reliability in mission‑critical environments

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What is a chiller system?

A chiller system removes heat from water and supplies chilled water to cooling systems such as CRAH units or Liquid Cooling solutions.

What is the difference between air‑cooled and water‑cooled chillers?

An air-cooled chiller releases heat directly into the surrounding air, while a water-cooled chiller uses water to transfer heat to a recooler or external heat rejection system. The choice between both technologies depends on factors such as site conditions, infrastructure, and cooling requirements.

What is Free Cooling in chiller systems?

Free Cooling uses ambient air temperatures to reduce mechanical cooling energy consumption.

Learn more about Free Cooling

When are chillers used in data centers?

Chillers are commonly used in data center cooling systems that rely on chilled water for heat removal and temperature control.

How energy‑efficient are modern chiller units?

Modern chiller systems use optimized compressors, controls, and Free Cooling to significantly reduce energy consumption.