CyberRow

Professional server rack cooling with innovative air conduction

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For more efficient rack cooling

In the CyberRow, in-line air conditioning unit, innovative horizontal air conduction has been enhanced with state-of-the-art technology that works with power, flexibility and efficiency – directly at the rack. Fluctuating server rack loads, space restrictions, lack of a raised floor, existing high-density server technology – these are exactly the cases from server rack cooling practice for which CyberRow was developed.

Data Center

Our units are designed for highest requirements and maximum reliability

No raised floor

Reliable cooling even without raised floor

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Small, medium & large rooms

Precision air conditioning units for low to high heat loads

Virtual Containment

Separation of air flows without structural measures

Product Overview

At a glance

Most important benefits

Suitable for server rack cooling in data centers with or without raised floor
Indirect Dynamic Free Cooling for maximum potential savings
Targeted cooling of high-density racks

Most important features

Can be used with racks from any manufacturer
Individual supply air boost in three horizontal zones

Most important technical data

Cooling capacity (kW): 11 – 58
Air conduction: left and right, left, right, forward

Benefits

Suitable for data centers with or without raised floor
Indirect Dynamic Free Cooling for maximum potential savings
Targeted cooling of high-density racks
Each unit can cool up to six server cabinets
Innovative technology and high-quality components keep server rack cooling system’s energy consumption to a minimum
Two mutually independent setpoints ensure precise temperature control
Up to five independent, variable-speed EC fans for need based cooling in three horizontal zones
Variable-speed EC compressor for precise cooling capacity and integrated soft start
Easy maintenance thanks to access from the front and rear of the unit

Features

Can be used with racks from any manufacturer
Server rack cooling including individual supply air boost in three horizontal zones
Available in three widths and two depths
Available in 5 different cooling systems
Optimized cooling air pattern creates a virtual containment
Easy integration into hot and cold aisle containments
RS485 connectivity to standard BMS systems
Zigzag G4 filter with metal frame
Powder-coated housing with doors at front and rear
Pre-cut openings as standard for water connections top and bottom
No direct cable or refrigerant connections are required between the rack and the A/C unit, allowing greater flexibility for installation in the Data Center
Pivoting E-box (for service and maintenance)

Technical Data

Cooling capacity total (kW)	11 – 58
Air conduction	left and right, to the left, to the right, forward
Airflow volume (m³/h)	3,200 – 11,200
Sizes	6
Dimensions	Height (mm): 1,950 Width (mm): 300 – 600 Depth (mm): 1,200 – 1,375
Cooling Systems	Air-cooled (A/AS), Water-cooled (GS), Hybrid Free Cooling system (GES), Chilled water system (CW/CW2)
Refrigerants	R410A (GWP: 2,088) R134a (GWP: 1,430)

All details about CyberRow

Climate. Customized.

From standard units to fully customized solutions

The ability to offer such a wide range to customers is the embodiment of our philosophy, "Climate. Customized.". Size, design, air conduction, system or control: CyberRow is a model of adaptability and the units can be precisely adapted to your individual requirements regarding server rack cooling. In addition, a variety of options and equipment versions are available to achieve the optimum result.

Learn more about Climate. Customized.

Virtual Containment

Unique air conduction

With the CyberRow, STULZ offers an efficient air conditioning solution that is positioned directly between the racks in the server room. Thanks to the innovative horizontal air conduction, the supply air is directed to the server racks and forms a cold air curtain in front of them. There is no air turbulence, which means that up to six server racks can be cooled simultaneously. The high efficiency of the CyberRow units is possible due to their proximity to the server rack: their unique air conduction prevents hot and cold air from mixing. This air conduction is like a virtual containment, dispensing with the need to build actual containments.

No air turbulence during server rack cooling

The virtual containment can be clearly seen in this picture. The air flow virtually sticks to the server racks and there is no air turbulence. The cold air takes a direct route to the front of the rack-based servers.

CFD visualization

The red areas – around the EC fans – show that the fans emit the cold air at a very high speed (approx. 9–11 m/s) at the outlets. However, this is only the case as long as the air is in the housing. The partitions installed between the EC fans channel the air flow and the air baffles at the outlet ensure uniform distribution across the entire height of the racks.

Sizes

Cooling systems

Energy efficiency, capital investment, operating costs, room size, noise protection, redundancy, local climate – every project has its own specific requirements when it comes to precise air conditioning. That’s why STULZ offers you the opportunity to have the units precisely adapted to your project’s individual requirements. The right air conditioning system is a crucial factor here. The CyberRow is available in five different data center cooling systems, to help you achieve the ideal balance between investment, operating costs and energy efficiency.

EC technology

Control and monitoring

Self-developed STULZ controller for regulating and monitoring the air conditioning system
Six temperature sensors for precisely controlling Delta T and supply air
Controls the operating modes of the hybrid Free Cooling system
If a fan fails, the remaining fans speed up
Monitoring and reports for all faults regarding server rack cooling
Standard RS-485 serial port for connection to BMS using Modbus and STULZ protocols
Optional humidity sensor
Optional heater
Optional humidifier

Project story: Ideal room climate for optimum printing processes

STULZ optimises critical print production conditions at Paragon Customer Communications

When it comes to guaranteeing the fast turn-around of critical regulatory communications, using the fastest print presses in the world, capable of producing up to two million pages a day, Paragon Customer Communications (Paragon CC) know that effective service delivery is increasingly reliant on room temperatures and humidity.

Paragon was looking for a tailored Air Conditioning solution for their demanding facilities in both a print room and a data centre. Reliability of equipment, no down-time and energy efficiency were the main drivers, and this is exactly where STULZ could offer a tailored solution providing the equipment and technology needed for cost efficient perfect environmental conditions.

See the project story here

Test Center

In our state-of-the-art, 700-square-meter Test Center with its various climate chambers, we can perform a variety of tests on precision air conditioning units and chillers. During the development of the CyberRow, we were able to test and optimize it under all climatic conditions encountered around the world.

In addition, we offer you the opportunity to book a witness test in our Test Center. This allows you to have the desired air conditioning system tested according to your exact specifications, creating transparency and providing you with information about your system’s performance and energy consumption.

More information