Smith ATI-540H (indoor) and ATO-540H (outdoor) configurations

making it the standard choice for HVAC damper hardware in rooftop units or exposed mechanical rooms

Common Questions: What causes a solenoid coil to burn out in HVACR systems

Does this replace the K15FS-24 exactly

reducing thermal stress on the windings

Lochinvar & A.O. Smith 100110984 Pilot Assembly 319825-402 Smith ATI-540H (indoor) and ATO-540HThe Lochinvar & A. O. Smith 100110984 Pilot Assembly is a high performance OEM replacement designed for natural gas heating systems, specifically optimized for commercial and residential water heaters and boilers. This natural gas pilot assembly features a precision engineered pilot burner and an integrated thermocouple to ensure consistent flame sensing and reliable ignition cycles. As a direct OEM replacement part, it is the updated successor to the