DAMPER ACTUATORS

Damper actuators are devices that control or stop the flow of air within a duct, chimney, VAV box, or other pieces of air-handling equipment. Heating, ventilation, and air conditioning (HVAC) systems frequently use them. Our support team at IACS is available for technical and sales enquiries.

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Damper actuators for HVAC systems

Dampers are the final control element for regulating almost all airflow in HVAC systems. Actuator applications are numerous, as they serve as an interface between the mechanical system and the control system, which is paramount for accurate control. But providing the ability to control the HVAC dampers are the actuators.

Typically, about 80% of the digital signals transported to HVAC systems are received by the actuator. They are perhaps the most critical component of the entire system since all other portions of the air system suffer when they are positioned inaccurately. More often than not, the accuracy of the damper and damper actuator is not an important selection criterion. However, the controller will not be able to compensate for this inaccuracy. That is why it is important to select the correct type when selecting one for your HVAC system.

There are four common types of actuators that we will elaborate on such as:

  • Spring Return On/Off
  • Air Volume Modulating
  • Chilled Water On/Off
  • PIBCV Modulating