Belimo TFB24-SR-S Actuator R-134A Performance Retention: Maintains the 95%

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

ensuring technicians can diagnose the cause of the trip—such as a failed blower motor or restricted airflow—before the system continues operation

System Efficiency: Prevents pressure loss and optimizes combustion by ensuring all flanged surfaces are properly coupled

For technicians performing a furnace flame sensor replacement

Belimo TFB24-SR-S Actuator R-134A Performance Retention: Maintains the 95%The 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