Reliable and energy-efficient solutions for CRAC /close control units
New energy and performance standards and low PUE targets in data centers, server rooms, and communication networks require Computer Room Air Conditioners (CRAC) with precise control to achieve high reliability, better humidity, and temperature settings as well as part-load efficiency. Ensure the cooling of your data server room will enable your business to perform at peak even with higher evaporating temperatures.
Precision air conditioning in data centers
Such cooling units need to operate reliably and provide cooling in both compressor and free cooling modes. The maintenance of stable temperatures and humidity is a key design challenge in these applications since they are used in environments where ambient temperatures often vary significantly during the day.
Danfoss microchannel heat exchangers (MCHE), scrolls with IDVs and inverter compressors, sensors, controllers, and electronic stepper motor valves let you adjust to temperature and load fluctuations to create cooling systems that safeguard these sensitive technologies while potentially reducing refrigerant charges. Our solutions include options for lower-GWP refrigerants. All of these backed up by Danfoss’s excellent technical support from our expert teams.
Features and benefits
All you need in one place, delivered by highly experienced air conditioning experts
Precise temperature control to safeguard sensitive equipment
Compact, space-saving units
Low energy consumption
Optimized for environmentally friendly, low GWP refrigerants
Reduced applied costs, short payback times and easy service
Dedicated customer service around the world
Key for application diagram:
- Compressors
- Pressure switch
- Ball valve
- Check valve
- Condenser
- Fan
- Solenoid valve
- Filter drier
- Sight glass
- Expansion device
- Evaporator
- Controller
- Pressure sensor
Documents
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Compressors for air conditioning, providing enhanced comfort, efficiency and sustainability for rooftops and chillers, commercial applications with refrigerants R410A, R407C, R134a and R22.
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Refrigeration pressure transmitters are used for commercial air-conditioning and for commercial and industrial refrigeration applications. They are made in stainless steel to be compatible with fluorinated and natural refrigerants and laser welding with no soft seals ensure hermetic tightness for decades.
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SGP is a series of sight glasses for high pressure applications (Max Working Pressure 52 bar/754 psig). SGP is available in versions optimized for refrigerants with mineral oil e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants. SGP is available with flare, solder and socket connections, and with and without moisture indicators.
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NRV and NRVH can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plants with fluorinated refrigerants. NRV and NRVH can be supplied with flare and solder connections. They are also available with oversize solder connections providing flexibility in the use of check valves.
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The range of pressure switches and thermostats cover a lot of applications within refrigeration and air conditioning. The pressure switches and thermostats are in two categories: KP as standard and RT for heavy duty purposes. The switches can be delivered for fluorinated refrigerants as well as ammonia.
Related solutions
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Explore the different facets of variable-speed technology for efficient commercial air conditioning and precision cooling. Includes system descriptions, cases, training.
Learning
- eLesson: Inverter Scroll Compressors: VZH Series Module 1 - Introduction
- eLesson: Inverter Scroll Compressors: VZH Series Module 2 – Installation & Troubleshooting
- eLesson: Electrically Operated Expansion Valves: ETS Colibri® - Introduction
- eLesson: Thermostatic Expansion Valves - Introduction & Portfolio
- eLesson: Danfoss Brazed Plate Heat Exchangers & Micro Plate Heat Exchangers - Installation & Troubleshooting
- eLesson: Danfoss Micro Channel Heat Exchangers - Installation & Maintenance
Case studies
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A British manufacturer have recently installed a scalable data center together with one of their customers which has achieved the impressive Power Usage Effectiveness rating (PUE) of 1.21.
For security reasons we cannot reveal the name and the location of the data center since the information managed by the servers is in many cases very sensitive.
News
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The focus on cutting energy consumption and reducing the carbon footprint has never been greater, but results are often achieved by compromising usability or efficiency. The Danfoss Heat Recovery Unit delivers strong environmental benefits as well as significant reductions on heating bills—all delivered with a short ROI.
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Danfoss has upgraded its MCX15B and MCX20B controllers with the introduction of the MCX15B2 and MCX20B2 controllers. Both models combine best-in-class connectivity, security, and performance with improved compressor control logic for VZH inverter scroll compressors.
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Danfoss has boosted the part load performance and the operating map of its leading VZH variable speed scroll compressor range. The third-generation of commercial inverter scrolls VZH retain the strengths of the previous version, with the addition of the Intermediate Discharge Valve (IDV) technology for enhanced seasonal efficiency, and a wider operating map.
Contact us
For further information, please contact us.