Critical Fire Prevention: Serves as a primary safety limit control by permanently breaking the circuit during extreme overheating scenarios

System Compatibility: Optimized specifically for Lochinvar EB 150/200 and EW 150/200 hydronic boiler models

System Protection: Actively prevents furnace overheating by monitoring air temperature in the supply plenum and interrupting the gas valve circuit if limits are exceeded

as capacitor requirements may vary between the original part and the current OEM replacement to ensure correct starting torque

Manual operation capability allows for system testing and emergency overrides during commissioning

Belimo AFB24 Actuator Refrigerant Critical Fire Prevention: Serves asThe Belimo AFB24 is a robust heavy duty spring return actuator engineered for precise on off mechanical fail safe operation in demanding HVAC systems. Delivering 180 in lb of torque, this motor is designed to drive large control dampers or valves to a safe position during power loss. Operating on a universal 24VAC DC power supply, it offers flexible integration for commercial retrofits and new builds alike. As a direct replacement for the legacy