York S1-025-49148-000 Sensor 321702-401 It features industry-standard ODF soldered

It features industry-standard ODF soldered connections: 1-3/8 inch for the suction line and 7/8 inch for the discharge line

This is an iron-core transformer specifically designed for legacy Arco and American Standard burners

veteran technicians usually recommend a full replacement of the A-4400-607 to ensure reliable operation

and frame size for simple installation

Inverted flare connections

York S1-025-49148-000 Sensor 321702-401 It features industry-standard ODF solderedThe York S1 025 49148 000 is an OEM 1 2 inch clip on temperature sensor designed for precise thermal monitoring in residential and commercial HVAC units. Engineered to integrate seamlessly with Johnson Controls and York air handlers and heat pumps, this thermistor assembly mounts directly onto copper refrigerant lines or headers to provide real time feedback to the control board. For contractors troubleshooting refrigeration cycles or defrost