this 24V staged heating control prevents simultaneous electrical surges by staggering the activation of resistive loads

you must use a transducer rated for 500 PSI or higher (such as the S1-025-29139-001) to avoid rupturing the internal sensing element

verify the individual packing list for your specific furnace series

Does this coil include the housing or plug

Built with a robust ASTM B584 bronze body and a silicone seat

Trane ADP1053 Adapter 321702-401 this 24V staged heating controlThe Trane ADP1053 Adapter (also identified by factory part number ADP01053) is a critical OEM replacement part engineered for high efficiency flue management in Trane and American Standard residential systems. As a veteran technician knows, maintaining the integrity of the flue connector is non negotiable for safe combustion venting. This 3 inch plastic adapter is designed with a perforated air diffuser to stabilize airflow within the venting