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CyberRow precision air conditioners
Intelligent airflow control – for increased rack cooling efficiency
Direct rack air conditioning in a new direction
The innovative CyberRow technology from STULZ ensures precision room climate control and reliable operation of information and communication systems. Air conditioning in the data center can be implemented in many different ways, and any of them will enable you to achieve your goal. For the best results, according to the requirements, we offer a wide range of different complete air conditioning systems depending on the needs of the data center.
Our latest development is the new CyberRow air conditioning system, which features a completely new direction of air flow – horizontally! The individual air conditioners are located in the server room itself, between the racks, which allows them to remove a significant amount of heat generated by the servers. This technology significantly improves airflow, as cool air flows in two directions through the side openings and is evenly distributed throughout the data center. By positioning the air conditioners in close proximity to the racks, the airflow only travels a short distance, so that cold and warm air do not mix much with each other. This contributes to the high efficiency of the CyberRow system.
Rack cooling with the CyberRow system from STULZ
The CyberRow is an advanced precision air conditioner that is customized to meet your rack cooling needs. In the CyberRow air conditioner, the innovative air handling system is optimized with state-of-the-art technology that increases its performance, adaptability and efficiency. Fluctuating heat load from server racks, limited space, lack of raised floor, server technologies used – these are just some of the challenges of daily practice for which the CyberRow system is specially designed. CyberRow is a self-contained air conditioner that is installed and operates independently of the rack. This complete separation of rack and air conditioner increases operational reliability and opens up a wider range of layout possibilities in the data center.
Horizontal air flow
Cold air reaches the rack in the shortest possible way.
Electronic control system
Monitors and controls all components inside and outside the air conditioner necessary to create cold air flow.
Three EC fans
Independently operating EC fans with infinitely variable control provide maximum efficiency
EC compressor
Stepless regulation provides precision cooling capacity and a 50% reduction in power consumption when starting the compressor thanks to the soft-start function. Electronic thermostatic control valve allows rapid (within seconds) change of cooling capacity
Adaptability and compatibility
The CyberRow air conditioner is available with four different cooling systems (A, CW, G and as a GE system with side free cooling) and in two sizes. Retrofitting cooling systems in existing buildings Thanks to its compact size and universal suitability for racks from various manufacturers, the CyberRow air conditioner can also be used seamlessly to retrofit cooling systems in existing buildings.
Ideal system for a variety of applications
System A with compressor cooling
The cooling circuit of air conditioners consists of an evaporator, an electronic thermostatic control valve, an EC compressor and an external air-cooled condenser. As the fan-driven room air flow passes through the evaporator, heat is removed from the air and transferred to the refrigerant. The air conditioner and the external condenser are connected to each other by a closed refrigerant circuit.
Liquid-cooled CW system
The CW unit operates without its own refrigerant circuit, but requires a separate unit to produce chilled water. Fan supplied room air passes through the direct cooling unit, which gives heat to the chilled water. The heat from the cooling water is removed by the chiller. The air conditioner and chiller are connected to each other by a closed cooling water circulation loop.
System G with compressor cooling and plate condenser
Similar to system A with the following difference: in system G, the heat from the DX circuit is removed to the water/glycol mixture by means of a plate condenser integrated in the air conditioner. The mixture circulates in a closed loop and releases heat to the outside air via an external cooling tower.
GE system with side-by-side free cooling
This cooling system combines a G system with incidental free cooling. The GE system switches to energy-saving operation when the outside air temperature permits. At the same time, the outside air is used for free cooling by-product cooling. Savings in energy consumption for rack cooling are up to 60 %. The use of CyberRow GE units significantly reduces both operating costs and greenhouse gas emissions.
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