Energy Efficient Solutions for CRAC

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  • Related products
  • Related solutions
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  • Case studies
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All you need in one place

New energy and performance standards require air conditioning systems with precise close control to achieve high reliability, better humidity and temperature control as well as part-load efficiency. These features are crucial for areas where close control units typically operate; i.e. in data centers, mobile phone network exchanges and server rooms, where cooling is business-critical.

Such cooling units need to operate reliably either continuously or intermittently, and provide cooling in both compressor and free cooling modes. The maintenance of a stable temperatures and humidity control are key design challenges in these applications, since they are used in environments where ambient temperatures often vary significantly during the day.

Danfoss micro channel heat exchangers (MCHE) let you take advantage of low temperature fluctuation to create cooling systems that safeguard these sensitive technologies. Our compressors provide you world-class efficiency ensuring lower running cost and reliable operation. All of these backed up by Danfoss’ 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

Optimised 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
Close control diagram - Danfoss
Variable speed technology in close control systems - Danfoss

Danfoss variable speed technology

By using the Danfoss inverter compressor solutions, significant energy savings can be achieved compared to traditional on-off compressors or mechanically-modulated technologies.

Documents

Documents
Type Name Language Valid for Updated Download File type
Brochure Close Control A/C brochure English Multiple 17 Sep, 2014 987.8 KB .pdf

Related products

  • if (isSmallPicture) { Compressors for air conditioning and heating - Danfoss } else if (isBigColumns) { Compressors for air conditioning and heating - Danfoss } else { Compressors for air conditioning and heating - Danfoss }
    Compressors for air conditioning & heating

    Compressors for air conditioning, providing enhanced comfort, efficiency and sustainability for rooftops and chillers, commercial applications with refrigerants R410A, R407C, R134a and R22.

  • if (isSmallPicture) { NRV refrigeration check valves - Danfoss } else if (isBigColumns) { NRV refrigeration check valves - Danfoss } else { NRV refrigeration check valves - Danfoss }
    NRV refrigeration check valves

    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.

  • if (isSmallPicture) { Danfoss WVFX, WVTS, and WVO pressure operated water valves } else if (isBigColumns) { Danfoss WVFX, WVTS, and WVO pressure operated water valves } else { Danfoss WVFX, WVTS, and WVO pressure operated water valves }
    Water regulating valves

    Pressure operated water valves are used for regulating the flow of water in refrigeration plants with water-cooled condensers.

  • if (isSmallPicture) { ETS electric expansion valve - Danfoss } else if (isBigColumns) { ETS electric expansion valve - Danfoss } else { ETS electric expansion valve - Danfoss }
    ETS electric expansion valves

    ETS is a series of electric expansion valves for precise liquid injection in evaporators for air conditioning and refrigeration applications. The valve piston and linear positioning design is fully balanced, providing bi-flow feature as well as solenoid tight shut-off function in both flow directions. ETS valves are compatible with electronic control solutions from Danfoss and other manufacturers.

  • if (isSmallPicture) { Solenoid valves for HVAC } else if (isBigColumns) { Solenoid valves for HVAC } else { Solenoid valves for HVAC }
    Solenoid valves for HVAC-R

    Solenoid Valves for refrigeration applications, standard types for fluorinated refrigerants and ammonia (R717) as well as solenoid valves for water and brine. The category also contains solenoid valves in stainless steel, gas powered valves and pulse solenoid valves.

Related solutions

Case studies

  • if (isSmallPicture) { Efficient data center cooling with inverter technology } else if (isBigColumns) { Efficient data center cooling with inverter technology } else { Efficient data center cooling with inverter technology }
    Low PUE in data center cooling saves energy and costs

    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.

Contact us

For further information, please contact us.