and igniter failures

the contacts should be open

For high-capacity HVACR and industrial piping

Always verify that the actuator and valve packing can handle the specific system media temperature before installation

this unit is a close on rise fan control

Belimo AFB24-S Actuator Refrigerant and igniter failuresThe Belimo AFB24 S is a heavy duty spring return damper actuator engineered for on off control in demanding HVAC applications. Delivering a robust 180 in lb torque, this unit is designed to operate reliably within 24VAC or 24VDC circuits, ensuring failsafe positioning for fire and smoke dampers or large control air valves during power loss. The integrated auxiliary switches (2x SPDT) provide precise position feedback to the building management system,