Laars Heating Systems 2400-446 Return Sensor 326058-757 Corrosion Resistance: Built to withstand

Corrosion Resistance: Built to withstand demanding industrial HVAC environments

The inclusion of a potential relay—rather than a basic PTCR device—ensures that the start capacitor is cleanly dropped from the circuit once the motor reaches approximately 75% of its operating speed

the 60905 serves as the direct replacement for Lennox 76710700

this kit includes the necessary mounting hardware to secure the transformer to the burner housing

Optimized Condensate Management: Restores the liquid-level sensing capability of 505SS and 506 models to ensure zero compressed air loss during discharge

Laars Heating Systems 2400-446 Return Sensor 326058-757 Corrosion Resistance: Built to withstandThe Laars Heating Systems 2400 446 Return Sensor is a precision thermistor designed for critical temperature monitoring within the hydronic return loop. Engineered specifically for compatibility with Laars Endurance and Pennant series boilers, this NTC thermistor provides real time feedback to the integrated control board to maintain tight setpoint differentials. Proper installation of this OEM replacement sensor is essential for accurate delta T