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

Smith gas valve ensures factory-spec ignition timing and consistent hot water delivery across diverse hydronic applications

matching standard commercial pneumatic setpoints

The Danfoss 067N2011 (Type TGEX 20) is a high-capacity thermostatic expansion valve (TXV) engineered for precision liquid injection in large-scale air conditioning and refrigeration systems

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