Hydronic balancing and control

Hydronic balancing of HVAC heating and cooling systems is essential for many reasons. It is necessary in order to achieve proper indoor comfort and for the system to run as efficiently as possible. If the hydronic balance is not properly in place, end-user complaints, extra costs and reduced lifetime value of the system can be expected.

Danfoss offers a hydronic balancing solution for every situation:

Pressure-Independent Balancing and Control Valves combine hydronic balancing and temperature control functionalities in one product. They are simply set to the design flow and used in both heating and cooling systems with variable flow conditions.

Automatic balancing valves eliminate pressure fluctuations occurring in variable flow systems. With additional pre-setting radiator valves that limit the maximum flow through e.g. radiators, the system can be hydronically balanced. Another automatic balancing solution is provided by the Pressure-Independent thermostatic radiator valves which combine the control of differential pressure and flow limitation in one valve.

Thermal balancing valves establish a proper balance by using the temperature entering the circulation pipes of Domestic Hot Water system risers. This provides a very efficient system.

Manual balancing valves can be used in systems with a constant flow, such as systems with 3-way control valves. They need to be commissioned to establish the design flow.       

Danfoss automatic balancing valves

Hydronic balance by setting the required differential pressure in risers and design flow at the radiators without any tools

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How we can help you

Improved energy efficiency and indoor comfort

Fewer complaints about uneven heat distribution

Fewer complaints about system noise

Savings on pump dimensions and energy consumption

Relatively short payback times

Related products

  • Radiator valves- Danfoss
    Radiator valves

    Robustly built and designed to meet the rigors of the commercial and industrial sectors, a comprehensive range of Danfoss radiator valves is available for practically all systems and installation conditions.

  • Leno MSV- Danfoss
    Leno MSV

    With LENOTM MSV Danfoss offers a versatile range of manual balancing valves for different HVAC heating and cooling applications having a constant flow system. The valves are available in sizes DN 15 – 50 and offer several practical benefits.

  • ASV Automatic balancing valves- Danfoss
    ASV Automatic balancing valves

    ASV automatic balancing valves provide a dynamic balancing solution for two-pipe heating or cooling applications. The riser-mounted valves eliminate pressure fluctuations occurring in variable flow systems at partial load conditions. For a proper hydronic balance the valves should be combined with pre-setting valves.

  • AB-QM- Danfoss
    AB-QM

    AB-QM Pressure Independent Balancing and Control Valves (PIBCV) provide both a control functionality and dynamic balancing solution for HVAC heating and cooling systems. PIBCV are designed for various types of terminal units and provide high indoor comfort and energy efficiency in public and commercial buildings.

  • Danfoss Thermal balancing valve MTCV
    MTCV with CCR2+

    MTCV Thermal balancing valves provide a dynamic, temperature based, balancing solution for drinking water applications. Combined with the CCR2+ a smart and energy-efficient electronic control solution for monitoring and disinfecting DHW systems is established.

Learning

  • How to balance HVAC systems in “Shell and Core buildings”
    How to balance HVAC systems in “Shell and Core buildings”

    Shell & Core buildings – larger buildings split in smaller zones for rental purpose – such as office buildings or shopping malls are rapidly gaining in popularity. The design and commissioning of the HVAC system in such buildings requires another approach. If this is not taken into account issues like a long handover time, an over-dimensioned and unreliable system will occur.

Case studies

  • Danfoss contributes to smart HVAC control solution for I-tower at WTC Amsterdam
    Smart HVAC control solution for the I-tower at WTC Amsterdam, the Netherlands

    Building: Office
    Application: Climate panels with a four-pipe change-over system for Heating and Cooling
    Challenge: Establish a modern, innovative HVAC control system optimized for flexibility in (changing) usage of office space
    Solution: Integration of Danfoss field devices with the Building Management System via BACnet bus-communication

  •
    High-end climate solutions in Waldorf Astoria by Hilton, Amsterdam, the Netherlands

    Building: Hotel
    Application: Hydronic balancing and control for radiator heating and fan coil cooling
    Challenge: Establish top level comfort and minimum energy consumption for heating and cooling
    Solution: Fan-coil units for cooling; 8 heating risers and radiators equipped with Danfoss products.

  •
    HVAC control at Katowice business centre, Poland

    Katowice Business Centre is a modern office building where Danfoss hydronic balancing solutions are used; AB-QM balancing and control valves in combination with revolutionary NovoCon® actuators.

  •
    Energy comfort in Prime Tower, Zurich, Switzerland

    The Prime Tower in Zurich is a building of many records. With its 126 meters it is the tallest building in Switzerland with 36 floors and 40,000 square meters accommodating mostly offices. And with its more than 6,000 AB-QM valves it is also one of the biggest heating and cooling installations ever designed and installed by Danfoss.

  •
    Balancing valves in Sky Tower, Wroclaw, Poland

    The tallest building of the EU now resides in Wroclaw in Poland. As a beautiful landmark to modern architecture, high user comfort and sustainable practice, the 212 meter high Sky Tower forms the pleasant setting for thousands of people living and working in the building.

  •
    Savings on energy costs in Sunway resort, Kuala Lumpur, Malaysia

    Building: Hotel
    Application: Hydronic balancing and control of water-based cooling system
    Challenge: Proof effectiveness of PIBCV valves
    Solution: Comparison test with Hydronic analyzer between traditional and PIBCV balancing and control options

Videos

Automatic balancing two-pipe systems
Automatic balancing two-pipe systems
Hydronic balancing and control
Thermal balancing
Automatic balancing one-pipe systems
NovoCon used in the new office of Danfoss Turkey

News

  •
    Legionella prevention, the smart way
    Monday, September 24, 2018

    For many years Danfoss has played an important role to establish safe Domestic Hot Water systems in hospitals, hotels, multi-family apartments and other buildings. Now our MTCV thermal balancing valves and new CCR2+ electronic controller for automatic disinfection have been significantly improved to your benefit.