Danfoss AB-QM was the first of its kind control valve for HVAC heating and cooling applications. It is a control valve with automatic flow limitation and built-in differential pressure control functioning over the control valve. The result of this concept is a high performing control valve with a – still - unique valve authority of 100%. The design flow can easily be set to the needed amount by using a 20-100% scale. Simply setting the design flow replaces traditional commissioning processes, gives a much more accurate control and avoids Kv calculations for system designers.
When equipped with a Danfoss actuator, PIBCV's increase the energy efficiency and improve the indoor climate. The AB-QM is mainly used for air handling units, climate ceilings, fan-coil units and other terminal units in HVAC heating and cooling systems.
Features and benefits
Easy setting and sizing
Selecting the right AB-QM is much less complicated than sizing and selecting conventional control valves. Once the design flow is determined the matching AB-QM can be selected, no additional Kv and authority calculations are required.
100% authority
Having a 100% valve authority increases the control quality and precision, also at low flow requirements. This creates a better comfort in the building, as well as increasing the energy savings.
Perfect control
By providing the right flow at the right time, the AB-QM optimizes chiller and boiler efficiency and reduces pumping costs. In addition, the actuators need to make much less movements, increasing the lifetime value and lowering the Total Cost of Ownership.
Hydronic balancing and control with Danfoss AB-QM
Brief explanation of the principle of automatic balancing & control of fan-coil units in office buildings. Including the benefits of using Danfoss' AB-QM valve compared to traditional balancing valves.
Documents
| Type | Name | Language | Valid for | Updated | Download | File type |
|---|---|---|---|---|---|---|
| Brochure - AD | AB-QM - Millions of reasons to choose the best | English | Multiple | 21 Sep, 2018 | 5.0 MB | |
| Data sheet - AI | AB-QM 3TP, Flow Checker (DN 40-250) | English | Multiple | 04 Sep, 2018 | 402.0 KB | |
| Engineering sheet - AL | AB-QM calculation | English | Multiple | 04 Sep, 2018 | 485.3 KB | |
| Brochure - AD | Application of AB-QM in cruise ships: Significant energy savings and optimal passenger comfort | English | Multiple | 04 Sep, 2018 | 1.8 MB | |
| Brochure - AD | Energy saving solutions for renovation of heating and cooling systems | English | Multiple | 23 Oct, 2018 | 5.8 MB | |
| Brochure - AD | Hotel application brochure | English | Multiple | 04 Sep, 2018 | 642.4 KB | |
| Application guide - AB | HVAC Application guide | English | Multiple | 23 Oct, 2018 | 7.5 MB | |
| Brochure - AD | Hydronic Balancing & Control product overview | English | Multiple | 31 Oct, 2018 | 1.1 MB | |
| Brochure - AD | Hydronic Balancing & Control product overview | English | United Kingdom | 31 Oct, 2018 | 7.1 MB | |
| Case story - AE | NovoCon - outstanding HVAC flexibility after office building renovation | English | Multiple | 31 Oct, 2018 | 5.7 MB |
Software
Danfoss C.H. software
Our advanced Danfoss C.H. software will help you to design and calculate the perfect heating or cooling installation with Danfoss products.
Related products
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Thermal actuators TWA-Z and ABN A5TWA-Z and ABN A5 thermal actuators for use with AB-QM balancing and control valves.
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Gear actuator AME435 QMAME 435 QM actuator for modulating control is used with pressure independent balancing and control valve type AB-QM from DN 40 to DN 100.
Case studies
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High-end climate solutions in Waldorf Astoria by Hilton, Amsterdam, the NetherlandsBuilding: 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, PolandKatowice 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.
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Energy comfort in Prime Tower, Zurich, SwitzerlandThe 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.
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Hydronic balancing in SAMBA bank head office, Riyadh, UAEAt the heart of the new King Abdullah Financial District in Riyadh stands the impressive SAMBA head office. The 40-storey building represents a landmark in sustainable architecture and engineering and forms an attractive work space for the 800 people working in the SAMBA Financial Group head office.
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Floreasca Park: Danfoss PIBCV solution offers the perfect balance in the greenest office building in Bucharest, RomaniaThe award-winning office complex Floreasca Park raises the bar for green office buildings. With 40% savings on the energy bill, Floreasca Park brings substantial savings to the tenants and a green footprint to the building. The new office complex, Floreasca Park in Romania, serves as an excellent example of a sustainable office building according to the international BREEAM rating.
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Balancing valves in Sky Tower, Wroclaw, PolandThe 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.
