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.
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
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 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.
MTCV Thermal balancing valves
MTCV Thermal balancing valves provide a dynamic, temperature based, balancing solution for drinking water applications. The valves prevent too high temperatures causing lime, corrosion and high energy costs. They also prevent too low temperatures where legionella risks increase and long waiting times for hot water to occur.
Outstanding HVAC flexibility after high-end office building renovation
Application: Hydronic balancing and remote control of 4-pipe heating/cooling change-over system
Challenge: Ensure a flexible to use HVAC system with DGNB sustainability certification
Solution: Digital NovoCon actuator combined with AB-QM control valves and NovoCon CO6 combined with ChangeOver6 as a combination balance the system hydronically, allow remote access via a BMS and control the room temperatures during both heating and cooling operation.
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
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