A mica washer is integrated to prevent internal shorting under extreme operating conditions

Automatic Reset Logic: Restores circuit continuity once the temperature drops to 120 degrees Fahrenheit

to prevent nuisance tripping and ensure accurate negative pressure sensing

With the inducer running

High Amperage Capacity: Rated for 16 Amps at 120VAC

Watts 0386423 Valve Els PW 17895 A mica washer is integratedThe Watts 0386423 (Series B1156F) is a high capacity boiler feed water pressure regulator engineered for demanding hydronic heating applications. Built with a heavy duty bronze body and 1 2" FNPT threaded connections, this valve is designed to automatically fill the boiler and system piping while maintaining a constant system pressure. It provides essential make up water to compensate for system leaks, ensuring the loop remains pressurized and