Close control systems

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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

Optimized for environmentally friendly, low GWP refrigerants

Reduced applied costs, short payback times and easy service

Dedicated customer service around the world

Application diagram: Close control air conditioning components in a typical system

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 system diagram - Danfoss
Variable speed technology in close control systems from the view of a skyscraper rooftop

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

Type Name Language Valid for Updated Download File type
Brochure Close Control A/C brochure English Multiple 974.3 KB .pdf

Related products

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    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.

  • Five compressor and condenser controllers/ Pack controllers manufactured by Danfoss
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    Danfoss offers a range of compressor and condenser capacity controls for use in food retail, in compact systems as well as in large power packs.

  • Product photo of the MCX programmable controller by Danfoss
    Programmable controllers - MCX

    Danfoss’ range of universal MCX programmable controllers offers the functionality and reliability you need to get the best out of your heating, ventilation, air-conditioning and refrigeration (HVAC/R) equipment.

  • Photo of the Danfoss family of filter driers
    Filter driers

    Filter driers in hermetic design are ideal for commercial refrigeration applications requiring high drying capacity to prevent acid formation in the system.

  • Multi-angle photo of Danfoss brazed plate heat exchangers for refrigeration
    Brazed plate heat exchangers for refrigeration

    The performance and efficiency of the brazed plate heat exchanger (BPHE) have been proven through 30 years of constant development to ensuring high efficiency.

Contact us

For further information, please contact us.