If the switch detects a blocked vent

including the 206A

Rugged Durability: Solid construction designed to withstand the ambient fluctuations of HVACR environments

leak-proof seal without the need for traditional stem packing

Fenwal 35-605601-007 Control Els PW 29614 If the switch detects aThe Fenwal 35 605601 007 is a high performance 24V Direct Spark Ignition (DSI) control module engineered for precise burner sequencing in commercial and residential gas fired heating systems. This microprocessor based ignition control is designed with no pre purge (0 second) and a 15 second trial for ignition (TFI), making it a reliable solution for applications requiring immediate ignition and robust flame supervision. Utilizing Detect A Flame