Belimo FSLF120-S-FC Actuator 30067439-890 and a 5-second Trial for

and a 5-second Trial for Ignition (TFI)

By regulating system connectivity and blower motor response

a standard ETX series tank should be used

this genuine boiler control transformer maintains factory-specified electrical characteristics

erratic manifold pressures

Belimo FSLF120-S-FC Actuator 30067439-890 and a 5-second Trial forThe Belimo FSLF120 S FC is a specialized fire and smoke damper actuator designed for life safety applications in HVAC systems. Operating on 120V AC, this spring return actuator delivers 30 in lb of torque at 350F, ensuring reliable operation under extreme conditions. It is engineered for on off control and features integrated auxiliary switches (two SPDT) for providing end stop verification to the fire alarm or building automation system. The FSLF