Direct 24V Logic: Simplified low-voltage integration ensures compatibility with standard gas furnace control boards and transformers

Foot Mount Design: Standard mounting footprint for fast mechanical installation in existing control panels

By integrating this Lennox 21Z09 into your preventive maintenance or repair workflow

By replacing a damaged or warped panel with this OEM furnace part

Trane SEN02528 Flame Sensor 318423-701 Direct 24V Logic: Simplified low-voltageFor veteran technicians servicing high efficiency systems, the Trane SEN02528 Flame Sensor is a critical OEM component designed for precise flame rectification. This genuine American Standard flame sensor (also cross referenced as SEN2195) acts as a high temperature safety probe, translating the presence of a pilot or burner flame into a microamp signal for the HVAC control board. Engineered to withstand the intense thermal environment of the burner