York S1-031-03495-000 Control Board R-22 The 42Y NEMA frame design

The 42Y NEMA frame design features an Open Air Over (OAO) enclosure

The Lennox 33M70 Inducer Assembly is a high-performance OEM replacement part engineered for draft induction in specific gas-fired heating systems

the 3450 RPM specification is vital for systems requiring rapid response and consistent fuel unit performance under varying load conditions

it is standard practice to inspect the thermocouple separately during maintenance to ensure a proper millivolt signal

and CTE-5500 series devices

York S1-031-03495-000 Control Board R-22 The 42Y NEMA frame designThe 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