you may also need to source the compatible 24V actuator separately

Enhanced Efficiency: Utilizes demand-based logic to reduce unnecessary cycles

Replacing it with a manual version would require the homeowner to reset it physically every time it trips

Flexible Installation: The 48" capillary sensing element provides ample reach for accurate probe positioning

which simplifies piping for the technician

Armstrong Furnace R37400D086 Control Kit Els PW 29614 you may also need toThe Armstrong Furnace R37400D086 Control Kit (TL103 2) is a critical OEM furnace replacement part designed to restore reliable HVAC ignition system performance. This genuine Armstrong Air ignition control manages the combustion sequence, ensuring safe and efficient burner operation in compatible residential furnaces. Engineered for precision, the R37400D086 circuit board features advanced diagnostic capabilities to assist in troubleshooting furnace