The 100109816 is a model-specific safety control

or overcharging

or "metal-on-metal" clattering sounds during the blower cycle

Using it on a higher voltage circuit will cause immediate component failure

As the direct replacement for the 58C92

Watts 0839831 Regulator 322055-301 The 100109816 is a model-specificThe Watts 0839831 (Model 252A) is a high performance 3 4 inch steam pressure regulator designed specifically for commercial and industrial process applications. Engineered with a rugged bronze body and a stainless steel disc, this regulator handles supply pressures up to 300 psi and temperatures reaching 300F. The 1050 psi reduced pressure range makes it an ideal choice for high precision equipment including autoclaves, steam tables, and large scale