Laars Heating Systems 2400-556 Flow Sensor 319847-401 Designed for zero-crossing detection

Designed for zero-crossing detection

maintaining the same electrical footprint and mounting specs

Designed as a safety mechanism

Key Benefits Universal Compatibility: Specifically engineered as the direct replacement for S1-024-19110-701

making it a standard specification for many Carrier

Laars Heating Systems 2400-556 Flow Sensor 319847-401 Designed for zero-crossing detectionThe Laars Heating Systems 2400 556 Flow Sensor is a precision engineered OEM replacement part designed for critical fluid dynamic monitoring in hydronic boiler systems. As a veteran grade HVAC flow sensor, this component ensures the boiler maintains appropriate flow rates before allowing the ignition sequence, protecting the heat exchanger from dry firing and thermal stress. This sensor is specifically calibrated for compatibility with the Laars