CyberCool Indoor
Maximum precision for fluctuating heat loads
STULZ CyberCool Indoor provides powerful, highly efficient indoor chilled water cooling with a minimal footprint and is perfectly suited for cooling medical equipment, IT and facilities. The unit's modern design and compact construction allows it to be installed inside the building easily, as well as integrated in existing systems. The version with speed-controlled EC compressor was developed for especially stringent project requirements.
Product Overview
Most important benefits
- Integrated Free Cooling function for low total operating costs (GE/GES system)
- Customized adaptations and special solutions for every application
- Installation in the immediate vicinity of the consumer
Most important features
- Available with and without EC compressor
- Three different systems available
Most important technical data
- Cooling capacity (kW): 20 – 100
- Integrated Free Cooling function for low total operating costs (GE/GES system)
- Customized adaptations and special solutions for every application
- Installation in the immediate vicinity of the consumer
- Quiet condensers or dry coolers minimize noise emission outdoors
- Simple to integrate in existing chilled water networks
- Chiller for indoor installation
- Available with and without EC compressor
- Three different systems available
| Cooling capacity (kW) | 20 – 100 |
| Sizes | 2 |
| Dimensions | Height (mm): 1,980 Width (mm): 950 – 1,400 Depth (mm): 890 |
| Cooling Systems | air-cooled (A/AS), water-cooled (G/GS), hybrid Free Cooling system (GE/GES) |
| Refrigerants | R410A (GWP: 2,088) |
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All details about CyberCool Indoor
Simple setup and integration
The compact CyberCool Indoor also fits through standard doors and can be set up anywhere without any problems. Spatial segregation of the two noise sources and the use of especially quiet condensers or dry coolers minimizes overall noise emissions. As all the important components are integrated in the CyberCool Indoor, its sensitive technology is perfectly safe inside the building. What is more, CyberCool Indoor is perfectly protected from vandalism or accidental damage.
Chiller available in three cooling systems
Always the right choice: CyberCool Indoor with three cooling systems
In order to guarantee chilled water generation to suit requirements, CyberCool Indoor is available in two versions and three different systems. The systems allow for scalable planning and grow at the same pace as your future requirements.
Energy efficiency, investment volume, operating costs, room size, noise protection, redundancy and local climate – every project has its own requirements in terms of appropriate indoor chilled water generation. Our customers can choose between different configurations and so achieve an ideal balance between capital investment, running costs and energy efficiency. STULZ is the world's only manufacturer to offer such a huge range of configuration options.
Air-cooled (A/AS)
The compact standard solution
A chilled water circuit transfers the heat load to the evaporator where the heat is drawn from the water and passed to the refrigerant. The refrigerant gives off the heat to the outside air via an air-cooled condenser.
Benefits of the system
- Tried and tested, rugged technology
- Reduced to just the major components
- Refrigerant used as transport medium for optimum heat transfer
Water-cooled (G/GS)
Water-cooled: Quiet and easy to integrate (G/GS)
Like A/AS on the direct evaporator principle – with one difference: the heat is transferred to a water/glycol mixture via an integrated plate condenser; this mixture gives off its heat to the outside air in a closed circuit via an external dry cooler.
Benefits of the system
- Integrable in existing chilled water networks
- Dry cooler can be linked to several units
- Pumps allow a large distance between the CyberCool Indoor and the dry cooler
Water-cooled with integrated Free Cooling function (GE/GES)
Maximum efficiency
Like G/GS, but with Indirect Free Cooling which replaces energy-intensive compressor operation in part or in full when outside temperatures are low. In FC mode, the heat is transferred straight to the chilled water circuit by an integrated Free Cooling heat exchanger and given off into the outside air via an external dry cooler.
Benefits of the system
- TCO leader: Minimal total operating costs over runtime
- All Free Cooling (FC) components integrated in the unit
- The most efficient system thanks to intelligent switching of operating modes (DX - mixed - FC)
Maximum efficiency with Free Cooling
The CyberCool’s most efficient mode for indoor cooling is selected automatically depending on outside temperature – reliably throughout the whole year and whatever the local temperature profile.
Compressor mode (DX): At high outside temperatures, entire cooling capacity is achieved using the compressor. The use of perfectly-matched components means that the CyberCool Indoor already works extremely efficiently, even in this mode.
Mixed mode: At moderate temperatures, the CyberCool Indoor runs in energy-efficient mixed mode, a mixture of free cooling and significantly-reduced compressor cooling.
Free Cooling mode (FC): At low outside temperatures, free cooling delivers the greatest potential savings. In this case, only outside air is used for cooling, compressor cooling is switched off completely.
(Illustration at right: temperature profile of Hamburg)
CyberCool Indoor EC – the TCO leader
In the EC variant, two complete but redundant refrigerant circuits are fitted for maximum operational availability. In addition to the ON/OFF compressor which comes as standard, an infinitely variable-speed EC compressor ensures maximum efficiency in partial load mode. This means that the unit responds especially rapidly to fluctuations in load and changes in temperature.
Benefits of the EC-Version
- Redundancy means operational availability
- Rapid adaptation to fluctuating loads
- Maximum efficiency in partial load mode
- Integrated compressor soft-start and continuous operation without compressor on/off cycles result in a very long life-time
Variable cooling capacity in partial and full load mode
10 * – 50 % cooling capacity:
The EC compressor is infinitely controllable and generates exactly the cooling capacity required. The ON/OFF compressor is switched off.
~ 50 % cooling capacity:
If approximately 50 % of total cooling capacity is required, the ON/OFF compressor constantly delivers the cooling capacity required. The EC compressor is switched off.
50 – 100 % cooling capacity:
The ON/OFF compressor generates 50 % of cooling capacity continuously. The EC compressor is infinitely controllable and generates the cooling capacity required over and above this.
* depending on model and operating conditions
The integrated free cooling function is enabling CyberCool Indoor to consolidate its position as technology leader among indoor chillers. Also equipped with an EC compressor (GES system), the unit is especially efficient in partial load mode. The interaction between variable-speed compressor and Indirect Free Cooling guarantees particularly energy-saving mixed mode. When compared directly to an A system, it is clear that the low operating costs soon cover the higher investment costs.
Liquid Cooling
The increasing use of high-performance computers is presenting cooling infrastructure with new challenges. The efficient and reliable management of extremely high heat loads is of major importance. Consequently, the demand for innovative cooling solutions is on the rise, with liquid cooling (LC) emerging as a particularly promising option.
Optimal cooling generation for mission-critical applications
Benefits in cooling medical technology
- Quiet condensers or dry coolers minimize noise emission outdoors
- Particularly quick response to variable loads (EC version)
- No glycol in hygienically sensitive indoor areas
Benefits in data center cooling
- Indirect Free Cooling for maximum savings potential
- High chilled water temperatures of up to +18 °C (outlet) and +25 °C (inlet)
- Dual power supply (optional) provides a high level of reliability
Benefits in process and industrial cooling applications
- Customized solutions for every application
- Broad operating range (chilled water outlet between +4 °C and +18 °C)
- Simple to integrate in existing chilled water networks
- Installation in the immediate vicinity of the consumer
Control and monitoring
- Project-specific software development and optimization
- Compatible with all common BMS protocols
- Runtime comparison and alarm switching ensure availability
- Machine-independent parallel operation of several chillers
- Sophisticated warning and alarm system
Options
Second power source for the greatest possible reliability
One of the key requirements for mission-critical and sensitive applications is uninterrupted cooling - in the event of a power outage, for example. To guarantee stable cooling capacity in spite of this, STULZ provides the option of an automatic transfer switch fitted directly in the switch gear cabinet. If the primary power supply fails, this is detected automatically and the system defaults to a second power source within a minimum of 180 ms.
Double pump
- Additional chilled water pump for internal redundancy
- Standard (2 bar) and high pressure (3 bar) version available
- Normal-priming multistage pumps
- All water-bearing parts are stainless steel Made in Germany
Water pipings
- Water pipings lateral, at the back or above possible (standard: at the bottom)
- Several pipe connections possible, e.g. Victaulic or flange (standard: screw connection)
Speed-controlled pump
- Efficient partial load operation
- Exact adjustment of discharge head and volumetric flow to the chilled water system
- Normal-priming multistage pump with integrated frequency converter
- Made in Germany
Project story: Cooling in perpetuity
STULZ implements air conditioning solution for RAG data center at the former colliery Pluto
More demanding efficiency and safety requirements meant the RAG company needed a new data center. For its air conditioning, RAG chose a solution from STULZ. The new units enable Mixed mode with an infinitely variable combination of Free Cooling and DX cooling, for greater energy efficiency.
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, system or control: CyberCool Indoor is a model of adaptability and the chiller units can be precisely adapted to your individual requirements. In addition, a variety of options and equipment versions are available to achieve the optimum result.
Learn more about Climate. Customized.
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
Test Center
CyberCool Indoor units are subjected to a full computer-controlled check in the STULZ Test Center. Extensive measurements under a wide variety of conditions show the actual performance data of the systems and components, bringing transparency to the theoretical design data.
Please be aware that our product portfolio may vary in some countries. For more information on availability, please visit the respective country page of our subsidiaries.
Here you will find an overview of our locations.
Is the cooling solution you require not available in your region? Please feel free to contact us! Together we will find a solution - we look forward to hearing from you.