Close control systems

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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
Close control diagram - Danfoss

Documents

Documents
Type Name Language Valid for Updated Download File type
Brochure Highly reliable and efficient solutions for close controls / CRAC units French France 09 Nov, 2021 716.5 KB .pdf
Brochure Highly reliable and efficient solutions for close controls / CRAC units English Multiple 13 Apr, 2021 1.3 MB .pdf

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Case stories

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    A British manufacturer has 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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