Lochinvar & A.O. Smith 100109948 Ignitor 320788-703 Its compact footprint and robust

Its compact footprint and robust windings ensure consistent performance under variable thermal loads

featuring a field-adjustable regulator to match specific manifold pressure requirements

leak-free installation in standard copper piping

ensuring it integrates seamlessly with the furnace control board’s diagnostic parameters

preventing fluid loss while automatically venting non-condensable gases that compromise pump suction and heat transfer efficiency

Lochinvar & A.O. Smith 100109948 Ignitor 320788-703 Its compact footprint and robustThe Lochinvar & A. O. Smith 100109948 Ignitor is a high performance silicon carbide hot surface ignitor engineered specifically for precision ignition in residential and commercial heating systems. This 120V HSI replacement serves as the direct updated version for the legacy 768A 211 model, ensuring reliable flame sensing and consistent ignition cycles under high demand conditions. Designed to meet the exact specifications of original equipment