it ensures consistent tension and reliable set-point stability when integrated into a Spence Type E or Type C main valve assembly

it is the direct functional successor

High-Temperature Resistance: Formulated to withstand the rigorous thermal demands of gas-fired heat exchangers without hardening

this direct replacement flame sensor ensures the gas valve closes immediately if a flame is not detected

Lochinvar & A.O. Smith 100111778 PCB Assembly 320788-703 it ensures consistent tension andThe Lochinvar & A. O. Smith 100111778 PCB Assembly is a direct replacement integrated control board designed for high efficiency commercial water heaters and boilers. This OEM control board serves as the primary logic processor, regulating ignition sequences, flame sensing, and temperature modulation to ensure precise thermal output. Engineered for rigorous duty cycles, the 100111778 circuit board utilizes a robust architecture to manage communication