Description
The Siemens GQD221.1U Electric Damper Actuator is a high efficiency device for precise control of HVAC dampers. This actuator utilizing 120V AC power source combined with a spring return mechanism that guarantees the damper moves back to its default position when power is lost improves system dependability. It can be utilised in various ways of damper applications to its torque deliand 90° angular rotation. Frequency range It is a versatile device fully compatible with typical HVAC systems. The benefits include more controlled temperature more energy efficiency and more controlled airflow.









