York S1-031-03495-000 Control Board 320734-701 Efficiency Optimization: Provides the accurate

Efficiency Optimization: Provides the accurate data required for the boiler to maintain its AFUE rating through precise modulation

and environmental resilience

105°C insulated) for rugged electrical connections

this kit is strictly a replacement for existing natural gas tube heater components

it is the correct replacement for select Carrier

York S1-031-03495-000 Control Board 320734-701 Efficiency Optimization: Provides the accurateThe York S1 031 03495 000 Control Board is a critical OEM 2 stage spark ignition module engineered for high performance residential and light commercial HVAC systems. Operating on a 24V power supply, this board manages complex ignition sequences, including flame sensing, blower timing, and multi stage gas valve regulation. It is a direct replacement for Source 1 components in various furnace models, ensuring the ignition control board maintains