Laars Heating Systems 2400-446 Return Sensor 326058-757 the internal calibration and pressure

the internal calibration and pressure range of this unit are optimized for oil pressure measurement in the higher range of the system

Corrosion Resistance: Built to withstand demanding industrial HVAC environments

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

though ensuring the 1 3/16 ORS face is clean and the O-ring is properly lubricated is essential for a leak-free seal

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

Laars Heating Systems 2400-446 Return Sensor 326058-757 the internal calibration and pressureThe 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