For proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturerÛªs specifications.
The actuator is mounted directly to a damper shaft up to 1.05Û in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.
The actuator operates in response to a 2 to 10 VDC, or with the addition of a 500ë© resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication. Not to be used for a