A buildings’ HVAC system is designed according geographical determined 'worst case' climate conditions. In practice these most demanding conditions seldom occur. As result, the HVAC system operates in partial load conditions most of the time. Achieving hydronic balance while the flow in the system constantly fluctuates requires a dynamic balancing solution. PICVs not only dynamically balance the system. Once equipped with an actuator they also control the flow, allowing more or less water through terminal units to provide rooms with correspondingly more or less heating or cooling.
The main benefit of PICVs:
Besides these main benefits there are also complementary benefits:
Danfoss AB-QM 4.0 is the enabler for HVAC 4.0 in smart buildings. It is a completely new designed Pressure Independent Control Valve (PICV) for terminal units such as fan coil units, chilled beams, and climate panels. It still features the unique AB-QM 100% valve authority for best-in-class control performance. But we have redefined the value in four different areas:
AB-QM 4.0 is designed to be the indisputable best PICV. The control performance is best-in-class and the PN25 valve body meets every requirement. The design flow can accurately be set, is visible when an actuator is mounted and can accurately be measured with PFM 1000. There are models with internal or external thread, with or without test plugs. The bi-directional filling and flushing simplifies the commissioning process. The best choice when you want a tender winner.
AB-QM 4.0 is designed to have a long lifetime. It has best-in-class reliability. With the inner construction made from a dedicated Polymer the valve is significantly less sensitive for scaling and clogging. As result it is the best performer in lifetime tests. For projects extended warranty periods are possible. The best choice when you want a superior quality for a long time.
AB-QM 4.0 is designed to fit the NovoCon S high accuracy digital actuator with BACnet or Modbus bus communication. This actuator allows for plug & play BMS integration and offers many benefits. The HVAC system can remotely be commissioned or flushed to save valuable time. Extended system data is provided to the BMS for e.g. predictive maintenance, alarms or fast error detection. The best choice when you want connectivity and data.
AB-QM 4.0 is designed to lower design, installation, commissioning and operational costs. It allows a faster handover time in projects. The established hydronic balance provides optimal user comfort at the lowest energy consumption. This results in the best possible HVAC system efficiency. The building value increases, allowing a higher rental price per m2 to optimize the Return on Investment. The best choice when you want the lowest cost of ownership.
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Danfoss is engineering HVAC 4.0 for smart buildings. The combination of AB-QM 4.0 and NovoCon® S actuators is a good example of the increasing digitalization in HVAC. The combination does not only establish high precision, dynamic, hydronic balancing and control. The digital actuators provide BMS with real-time HVAC data to enable Active Energy Management (AEM). Digital valve control via fieldbus also offers advantages in remote commissioning, flow setting and flushing. Continuous logging of all system data enables predictive maintenance and energy allocation. And automatically generated alarm messages support fast and accurate troubleshooting. By using smart and connected products and services, such as AB-QM 4.0 and NovoCon S, the energy efficiency and comfort of buildings is being optimized.
For more information, please visit the NovoCon page.
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Danfoss разширява продуктовото си портфолио в сферата на независимите от налягане решения при системи с ОВК приложения, с новите AB-QM 4.0 Flexo комплекти.
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