Stage visual CyberCool 1

CyberCool 1

The source of liquid-based closed-circuit cooling up to 80 kW

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Water Chiller Unit with Free Cooling for a minimal footprint

Our compact CyberCool 1 units have been optimized over many years for use in small and medium-sized data centers and in industrial and process engineering. Two different versions and a diverse range of possible options enable process cooling to be adapted to specific projects. Moreover, the water chiller units offer all the benefits of Free Cooling even with low cooling capacity.

Data Center
Data Center
Our units are designed for highest requirements and maximum reliability
Optimized for process and industrial cooling
Free Cooling
Free Cooling
Maximum potential savings by using cool outside air
Compact unit
Compact unit
Maximum cooling capacity with a minimal footprint

Product Overview

At a glance

Most important benefits

  • Maximum potential savings thanks to Free Cooling
  • Maximum cooling capacity with a minimal footprint
  • Commercial water chiller with long service life

Most important features

  • 3 sizes with 11 models
  • Low-noise version available

 Most important technical data

  • Cooling Capacity (kW) 36 – 235
  • Maximum potential savings thanks to Free Cooling
  • Maximum cooling capacity with a minimal footprint
  • Reliable and precise process cooling with long service life
  • Compact design for easier transport and installation
  • Cuts lifecycle costs by up to 40 % by strategic switching between Free Cooling, Mix and Compressor Cooling modes and the systematic use of steplessly controlled drives
  • Quiet, high-efficiency scroll compressor
  • Easy, fast installation and start-up
  • Compact chillers for outdoor installation, ready for connection
  • 3 sizes with 11 models
  • Outside temperature range -10 °C to +40 °C as standard
  • Speed-controlled condenser fans for slow ongoing operation at low outside temperatures
  • Large variety of options
  • Low-noise version available

Technical Data
Cooling capacity (kW)36 – 235
DimensionsLength (mm): 2,500 – 4,000
Depths (mm): 1,350 – 1,500
Height (mm): 1,945 – 2,125

R410A (GWP: 2,088)

R407C (GWP: 1,774)

All details about CyberCool 1

Process cooling: two versions for project-specific requirements

CSO – The compact standard version

  • Quiet, high-efficiency scroll compressor
  • Timer-controlled operation for lower noise emissions
  • Speed-controlled condenser fans for slow ongoing operation at low outside temperatures

CLO – Low Noise version

  • Noise-insulated compressor chamber
  • Noise-optimized condenser fan configuration with lower speed range
  • Halves perceived noise by reducing noise by up to 10 dBA
Free Cooling for CyberCool 1

CyberCool 1 brings together the three operating modes

  • Compressor mode (DX)
  • MIX – Compressor mode with a proportion of Free Cooling
  • Free Cooling mode (FC)

As a result, in temperate zones, Mixed mode accounts for most of the operating hours (approx. 60 % = approx. 5,250 h/a). In this mode, the Free Cooling coils pre-cool the chilled water circulating medium, reducing compressor power consumption.

Free Cooling calculator
Calculate the potential of Free Cooling at your location.

Savings with Free Cooling and Mixed mode 

Lifecycle costs for 10 years with and without Free Cooling for cooling capacity of 72 kW


Thanks to the diverse options and equipment versions available, you can adapt STULZ units to suit your requirements perfectly.

  • Rubber shock & vibration absorber
  • Butterfly valve
  • Kits for very high and very low outside temperatures
  • Pressure gauge for water pressure
  • BMS connections
  • Integrated/separate buffer tank
  • Corrosion-protected coils
System solutions from a single source

CyberCool 1 chillers achieve maximum energy efficiency in combination with STULZ CyberAir 3PRO CW air conditioning units. Each individual solution and component from STULZ has been selected and developed with the aim of reducing operating costs to a minimum.

The C7000 controller developed by STULZ networks and controls all units, and keeps everything working in perfect harmony.

Investing in the quality, reliability and efficiency of STULZ air conditioning and chiller solutions pays off during operation after just a short time. You can find more information on the CyberAir 3PRO CW on our product page

More information

Control and monitoring
  • C7000 controller
  • STULZ hardware and software developed in-house
  • Connection to building automation systems
  • Energy efficient system operation at every operating point
  • Early warning system (warning and main alarm)
  • Service interface
Service and maintenance

As a company with locations across the globe, we offer everything you need in the extremely dynamic world of information technology – plus professional advice in the right place at the right time.

Our trained and experienced sales and service partners are located in over 140 countries. The resulting proximity to our customers allows fast response times. In addition, regular training courses and an active exchange of information ensure high quality and an extensive knowledge of all our products. This way, you can be sure your products are in the best hands and get the right maintenance – all over the world.

Locations worldwide


STULZ Service
STULZ Service
STULZ Service
Test Center

At our test center, you can have CyberCool 1 units tested under your individual operating and site conditions. This creates transparency and confirms the water chiller unit’s performance and energy consumption during process cooling.

More information about STULZ test center


Find your individual STULZ contact

Need more information?

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Do you have any questions? We will be happy to help! Please call us or follow our contact form.

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Contact us

Holsteiner Chaussee 283
22457 Hamburg 

Central Office: +49 40-5585-0
Fax: +49 40-5585-352

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