It prevents the heating element from over-consuming the protective anode rod

contact when the current exceeds the user-defined threshold

High-Temperature Protection: Actuates at a 190°F trip point to prevent heat exchanger damage and ensure safe furnace operation

minimizing field modification time for contractors performing electric heat kit installation

OEM Compatibility: Precision-engineered for a drop-in fit in specified Rheem and Ruud air handlers and furnaces

Heil Quaker ICP 1183618 Terminal Board Kit 30067439-890 It prevents the heating elementThe Heil Quaker ICP 1183618 Terminal Board Kit is a vital OEM replacement part designed for technicians performing maintenance or electrical repairs on ICP and Heil Quaker HVAC units. This terminal board acts as the central hub for electrical connectivity, ensuring signals from the thermostat and safety switches reach the control board and blower components correctly. Engineered to meet exact factory specifications, the kit includes the 1183618