The NF24SR is a 24VAC spring return direct coupled damper actuator that is used for proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. The actuator operates in response to a 2 to 10 VDC, or with the
addition of a 500½ resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for positon indication or master-slave applications. It features: - Brushless DC motor.
- True spring return operation.
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