to prevent nuisance tripping and ensure accurate negative pressure sensing

heat-resistant materials to prevent warping and corrosion in exhaust venting systems

this ICP 1065750 control is a manual-swap

this specific model is the "Auto-Off" version without a hold feature

Watts 0386423 Valve Els PW 17895 to prevent nuisance tripping andThe 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