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 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

Type Name Language Valid for Updated Download File type
Brochure - AD Close Control A/C brochure English Multiple 23 Aug, 2018 974.3 KB .pdf

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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.

  • Compressor and condenser controllers - Danfoss
    Pack controllers

    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.

  • MCX programmable controllers - 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.

  • Pressure switches and Thermostats - Danfoss
    Pressure switches and thermostats for refrigeration

    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.

  • Sight glasses - Danfoss
    Sight glasses

    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.

Related solutions

  • Variable speed - Danfoss
    Variable speed

    Explore the different facets of variable-speed technology for efficient commercial air conditioning and precision cooling. Includes system descriptions, cases, training.

Case studies

  • 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.

News

  • Multi-refrigerant DSH scrolls give OEMs “ultimate flexibility” on low GWP
    Wednesday, April 17, 2019

    Danfoss has qualified its range of DSH scroll compressors for use with R454B and R452B refrigerants, giving OEMs “ultimate flexibility” when offering alternatives to R410A.

  • New 8.5 TR and 11 TR variable speed compressors with IDV
    New 8.5 TR and 11 TR variable speed compressors with IDV
    Wednesday, October 10, 2018

    New efficiency opportunities for Chiller/Rooftop units and Computer Room Air-Conditioners

    Danfoss has added new 8.5 TR and 11 TR (*) variable speed compressors with IDV(**) to its popular VZH range, giving commercial cooling manufacturers the market’s most complete choice of variable speed scrolls with qualified drives for HVAC systems.

  • New extension of Danfoss ATEX Lab accelerates the use of sustainable refrigerants
    New extension of Danfoss ATEX Lab accelerates the use of sustainable refrigerants
    Friday, September 21, 2018

    With 100 customers, journalists, and employees in attendance, the ribbon was cut and the doors to our newly extended ATEX lab were opened yesterday. This facility will speed up the testing of refrigerant options for compressors, easing the transition to more sustainable refrigerants.

Contact us

For further information, please contact us.