Belimo TFB24-SR-S Actuator R-134A high-efficiency condensing units like the

high-efficiency condensing units like the KN-4 rely on clear visual feedback for HeatNet control platform operations and combustion adjustments

Performance Retention: Maintains the 95% AFUE rating and high-efficiency discharge parameters of your Lochinvar boiler

For technicians performing a furnace flame sensor replacement

Corrosion Resistance: Built with a rugged bronze body and stainless steel internal parts to withstand harsh water conditions

undistorted view of the combustion process

Belimo TFB24-SR-S Actuator R-134A high-efficiency condensing units like theThe Belimo TFB24 SR S is a high torque spring return actuator designed for proportional control in dampers and valves within high performance HVAC systems. Operating on a 24Vac dc power supply, it accepts a 2 10VDC control signal to provide precise 22 in lb torque. This unit features an integrated SPDT auxiliary switch, factory set at 95 degrees, for reliable signaling and end stop verification. Built for longevity in demanding environments, the