Lochinvar & A.O. Smith 100208388 Pressure Switch 321894-706 Contractor-Friendly Setup: Includes a return

Contractor-Friendly Setup: Includes a return air sensor for emergency backup and simplified terminal labeling on the control module

Flow Regulation: Specifically designed to control fluid levels in drain and feed lines

making it suitable for managing inductive and resistive loads up to 120V

offering increased safety and protection for your control circuitry

Always verify your motor's rotation before installation to ensure the air is being pulled through or pushed out of the coil as intended by the equipment design

Lochinvar & A.O. Smith 100208388 Pressure Switch 321894-706 Contractor-Friendly Setup: Includes a returnThe Lochinvar & A. O. Smith 100208388 Pressure Switch is a critical 1" WC (Water Column) safety component designed for high efficiency boiler and water heater systems. As an authentic OEM replacement part, it ensures the inducer motor is pulling the correct draft before the ignition sequence begins. Rated at 1. 0" WC, this single pole, double throw (SPDT) switch is engineered to monitor combustion air pressure and prevent operation under unsafe