Lochinvar & A.O. Smith 100168668 Air Sensor 321894-708 For contractors performing a compressor

For contractors performing a compressor service valve replacement

If the sensor shows an open circuit or significant Ohm deviation based on actual ambient conditions

facilitating rapid HVAC switch replacement using standard female disconnects

High Capacity: Rated for a 22A resistive load at 277 VAC

Is the MP-9430 a direct replacement for the legacy Barber Colman EA-71

Lochinvar & A.O. Smith 100168668 Air Sensor 321894-708 For contractors performing a compressorThe Lochinvar & A. O. Smith 100168668 Air Sensor is a critical component for achieving precise outdoor reset control in high efficiency 100 Series and 110 Series heating systems. Designed for seamless integration with Smart System controls, this NTC thermistor allows the boiler to dynamically adjust its firing rate and water temperature set point based on real time ambient conditions. By providing accurate outdoor temperature sensing, it enables