this replacement control board is essential for restoring precise temperature modulation and responding to BTH error codes

Do not bend the tubing within 1/2 inch of the bulb or the control head

it requires a specific run capacitor to operate

What prevents the sensor from burning out during a wiring error

Automation Components Inc (ACI) SPT-8 Pilot Tube 321042-401 this replacement control board isThe Automation Components Inc (ACI) SPT 8 Pilot Tube is a high performance aluminum pitot tube engineered for precision in industrial and commercial HVACR applications. Specifically designed as a static pressure probe, this 8 inch duct pressure sensor is essential for monitoring air velocity and system performance. By integrating a single point sensing tip that opens parallel to the airstream, the ACI SPT 8 provides highly accurate static pressure