Lochinvar & A.O. Smith 100167803 Integrated Control 320819-301 This component is a critical

This component is a critical safety upgrade for BTH

"H" handles hot liquids up to 400°F using specialized seals

Engineered to handle the rigorous demands of 20-ton circuits

The Robertshaw 1819-001 includes both a two-lead thermopile (750mV) and a Lo-Mass thermocouple (30mV) to power the safety circuit and the main operator simultaneously

Always use a digital manometer to dial in the gas valve manifold pressure to the furnace manufacturer’s specific ratings listed on the nameplate

Lochinvar & A.O. Smith 100167803 Integrated Control 320819-301 This component is a criticalThe Lochinvar & A. O. Smith 100167803 Integrated Control is a critical OEM replacement component designed for high efficiency Armor Water Heaters and specific boiler models. As a direct successor to legacy parts RLY30047, RLY40038, and 100167952, this integrated control board manages the sequence of operation, including ignition, temperature regulation, and safety monitoring. It is engineering matched for Lochinvar AW151 286 series units, ensuring