York S1-331-03009-000 Control Els PW 17895 The orifice must be selected

The orifice must be selected and purchased separately based on the required tonnage

By monitoring discharge air or internal component temperatures

For maintenance

the CNT1662 is a direct OEM replacement for technicians addressing short-cycling or thermal cutout issues in high-efficiency Trane and American Standard systems

Maintain peak performance and prevent critical system downtime with the official ASCO 302-378 rebuild kit

York S1-331-03009-000 Control Els PW 17895 The orifice must be selectedUpgrade and maintain system integrity with the York S1 331 03009 000 Control, a specialized 2 Stage Furnace Control board designed for high performance residential heating applications. This genuine York OEM part serves as the central logic unit for two stage gas furnaces, precisely managing ignition sequencing, inducer motor speeds, and blower timing to ensure balanced airflow and efficient heat distribution. As a veteran grade HVAC circuit board