Lochinvar & A.O. Smith 100297134 Flame Sensor 321702-401 With a functional pressure range

With a functional pressure range of 10" Hg to 100 psi and an adjustable 10 psi differential

as the old coil is not compatible with the new valve body

Key Benefits Direct OEM Match: Drops in perfectly as the S1-1TVM701 replacement

Its 2-wire configuration significantly reduces cabling requirements and commissioning time for contractors managing large-scale HVAC current sensing projects

The TEFC (Totally Enclosed Fan Cooled) design protects internal components from airborne debris and moisture

Lochinvar & A.O. Smith 100297134 Flame Sensor 321702-401 With a functional pressure rangeThe Lochinvar & A. O. Smith 100297134 Flame Sensor is a critical genuine OEM replacement part engineered for precision flame rectification in high efficiency gas fired systems. Designed for use in Lochinvar boilers and A. O. Smith water heaters, this sensor monitors the burner flame to ensure the ignition control module receives a continuous microamp signal. If the flame signal is lost or carries high resistance, the system initiates a safety lockout