Laars Heating Systems 2400-556 Flow Sensor 319847-401 Durability: Designed with robust solid-state

Durability: Designed with robust solid-state components to withstand the thermal cycles found in high-performance air handlers

You must always match the fixed temperature setting of the original equipment manufacturer to prevent heat exchanger damage and maintain system safety protocols

reducing field time during emergency calls

significantly reducing labor costs and system downtime compared to float-type controls

and Johnson Controls models

Laars Heating Systems 2400-556 Flow Sensor 319847-401 Durability: Designed with robust solid-stateThe 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