supporting systems with capacities up to 3

the internal ball plug may be sticking

Key Benefits: Factory-Calibrated Precision: Set specifically at

By preventing dust and debris from fouling pneumatic thermostat orifices

Belimo AFRBUP-S Actuator 321142-301 supporting systems with capacities upThe Belimo AFRBUP S is a heavy duty, spring return damper actuator designed for reliable on off control in demanding HVAC systems. Engineering 180 in lb of torque, this unit provides failsafe operation for large control dampers, ensuring mechanical spring return during power interruptions. Its universal power supply accepts any input voltage from 24 to 240 VAC, simplifying inventory and field replacements for commercial HVAC maintenance. Equipped with