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The FSLF series is specifically tested to meet UL 555 and UL 555S standards for smoke and fire dampers
an infinite reading indicates a failed coil
OEM Reliability: Genuine Williams Furnace replacement part ensures exact tolerances that aftermarket alternatives often lack
making it suitable for standard refrigeration applications where temperature consistency is paramount
Includes the genuine Honeywell Q3450C burner and Q3400A igniter for superior flame sensing and ignition speed
Lochinvar & A.O. Smith 100109827 Ignitor Pilot 321894-709 The FSLF series is specificallyThe Lochinvar & A. O. Smith 100109827 Ignitor Pilot is a critical replacement component engineered for high performance gas fired water heaters and residential boilers. Designed as a professional grade pilot igniter kit, this assembly facilitates precise spark generation to initiate combustion efficiently while maintaining system safety. It serves as a direct replacement for AO Smith 100109827 and Lochinvar 100109827, as well as the legacy part number
