Common QuestionsWhat does this sensor measure

As part of the high-performance i3 Series

ensuring stable performance across its operating range of -50 to 250

Smith tank-style heaters requiring a 1-inch NPSM connection thread

including the crankarm and bracket

Fenwal 35-605601-003 Ignition Module 321042-401 Common QuestionsWhat does this sensorThe Fenwal 35 605601 003 is a 24VAC microprocessor based direct spark ignition control designed for precise timing and reliable burner sequencing in gas fired HVACR equipment. This module is engineered with 0 second prepurge and a 7 second trial for ignition (TFI), making it an ideal solution for applications requiring immediate ignition without delay. Utilizing proprietary DETECT A FLAME technology, this control ensures safe starts by accurately