Lochinvar & A.O. Smith 100109355 Ignitor Assembly 320735-701 the Part Number 166700 minimizes

the Part Number 166700 minimizes the risk of dry firing

By modernizing the HVAC control logic

while the 3-foot capillary offers the necessary reach for flexible positioning within the cabinet

including residential forced-air furnaces and commercial boilers

the RLY1033 module offers the advanced diagnostics and reliable switching required to maintain optimal thermal efficiency and system uptime in demanding HVACR environments

Lochinvar & A.O. Smith 100109355 Ignitor Assembly 320735-701 the Part Number 166700 minimizesThe Lochinvar & A. O. Smith 100109355 Ignitor Assembly is a mission critical hot surface igniter (HSI) replacement designed for high efficiency natural gas (NG) water heaters. Engineered to meet strict OEM specifications, this assembly functions as the primary ignition source for the burner, ensuring reliable light off and consistent flame rectification. As the direct updated replacement for the legacy 9003626005 part number, the 100109355 features a