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Industrial-Grade Build: Forged brass construction with a nickel-plated stem ensures long-term performance in closed-loop hydronic systems
Versatile Media Compatibility: Rated for use with Natural Gas
If it clicks but does not spark
This proactive HVAC lockout control mitigates common field issues such as evaporator coil icing
Fenwal 35-655921-001 Ignition Module 320788-703 Industrial-Grade Build: Forged brass constructionThe Fenwal 35 655921 001 is a microprocessor based 24 VAC Hot Surface Ignition (HSI) Control engineered for precise management of gas fired appliances. This direct replacement ignition module handles the complete demand sequence, including combustion blower control, flame sensing, and diagnostic monitoring. Designed for systems under 400K BTU, it features a 5 second Trial for Ignition (TFI) and a 5 second ignitor heat up period to ensure stable
