Smith 100110588 Flow Switch is a critical safety and monitoring component engineered for high-efficiency hydronic systems

eliminating the variables of universal components

as these modules are common failure points due to power surges or moisture infiltration

Professional installation ensures a leak-proof seal at the primary drain port

Fenwal 35-615922-125 Module 326070-701 Smith 100110588 Flow Switch isThe Fenwal 35 615922 125 is a professional grade 24VAC DSI module specifically engineered for Greenheck make up air units and high demand gas fired appliances. This microprocessor based direct spark ignition control provides precise sequence management, integrating an inducer blower relay to coordinate combustion airflow with the ignition cycle. As a veteran preferred HVAC ignition control board, it features DETECT A FLAME technology for robust flame