Belimo AFB24-S Actuator R-410A This microprocessor-based control board serves

This microprocessor-based control board serves as the direct replacement for discontinued part number 42001-0052S

Common Questions: What models does the 21-928-1 replace

The unit features CCW lead end rotation and is engineered to maintain precisely calibrated static pressure

Updated Specifications: Serves as the official successor to the R400SZ-1/2

ensuring immediate closure upon pressure relief to maintain an airtight seal throughout the refrigerant circuit

Belimo AFB24-S Actuator R-410A This microprocessor-based control board servesThe 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,