Lochinvar & A.O. Smith 100109951 Pressure Switch 321894-706 verify Section IV thermal relief

verify Section IV thermal relief requirements

Its high-adsorption desiccant blend ensures the removal of harmful organic and inorganic acids that cause motor insulation failure

Is this sensor compatible with my existing BAS controller

without a timed delay for combustion air flow

ensuring robust switching reliability across four separate single-pole double-throw (SPDT) circuits

Lochinvar & A.O. Smith 100109951 Pressure Switch 321894-706 verify Section IV thermal reliefWhen you are troubleshooting a pressure switch failure on a high efficiency hydronic system, the Lochinvar & A. O. Smith 100109951 is the specific OEM replacement part required to restore precise combustion air pressure monitoring. This air pressure switch is factory calibrated for the BTN 200 366 series water heaters and boilers, ensuring that the blower is moving sufficient air for safe ignition. As a normally open (NO) switch with a set point of 2.