making it a preferred choice for fan status monitoring

this unit comes pre-assembled with a #37 orifice specifically sized for natural gas service in 18-inch burner configurations

This actuator is primarily designed for water applications

Integrating this genuine A

Lochinvar & A.O. Smith 100166222 Pressure Switch 319825-402 making it a preferred choiceThe Lochinvar & A. O. Smith 100166222 Pressure Switch is a critical safety component engineered for precise induced draft monitoring in high efficiency commercial boilers and water heaters. As a veteran grade HVAC pressure switch, this part ensures the combustion fan or inducer motor is moving sufficient air to safely vent flue gases before the ignition sequence begins. Built to handle the rigorous demands of hydronic heating systems, it features a