Belimo FSNF24-S Actuator 30067439-890 this specific model is a

this specific model is a low pressure selector

Optimized Venturi Design: Engineered to facilitate superior primary air entrainment

offering reliable setpoint stability without the complexity of modern electronics

Optimized Airflow: Precision-balanced internal blower wheel provides the consistent static pressure needed to close the circuit on furnace pressure switches

the Watts 9D backflow preventer supports both horizontal and vertical installations

Belimo FSNF24-S Actuator 30067439-890 this specific model is aThe Belimo FSNF24 S is a specialized fire and smoke damper actuator designed for fail safe operation in life safety applications. Engineered to deliver 70 in lb torque, this spring return actuator ensures positive close off of dampers during power loss or high temperature alarms. Operating on 24 VAC VDC, the unit features a brushless DC motor for precise control and long term reliability in demanding HVAC environments. This model includes two built in