Lochinvar & A.O. Smith 100173748 Cut-Off Freon to prevent nuisance tripping and

to prevent nuisance tripping and ensure accurate negative pressure sensing

reducing the risk of cylinder damage or binding during operation

offering smooth articulation to reduce wear on actuator components

though typical operating pressures in modern systems often remain below 1

maintaining the exact form and function required for a drop-in installation without field modifications

Lochinvar & A.O. Smith 100173748 Cut-Off Freon to prevent nuisance tripping andThe Lochinvar & A. O. Smith 100173748 is a critical Low Water Cut Off (LWCO) safety control designed to protect hydronic and steam systems from dry fire conditions. Functioning as an Auto Reset sensor, this component continuously monitors the boilers water level and breaks the 24V control circuit to the burner if a low water threshold is detected. This specific HVAC replacement part is essential for maintaining operational safety in residential and