System Efficiency: Minimal 11

Replacing it with an LA21RA526 often restores the necessary draft

allowing it to open and close regardless of line pressure

and C64026-1

Common Questions How do I wire the AOBD-12X12 to a standard zone board

Fenwal 35-705600-005 Control Els PW 29614 System Efficiency: Minimal 11The Fenwal 35 705600 005 is a professional grade 120 VAC Direct Spark Ignition (DSI) control designed for precise burner management in gas fired equipment. This microprocessor based module replaces older analog systems, offering significantly improved timing accuracy and robust flame sensing capabilities. Engineered with a 10 second Trial for Ignition (TFI) and an integrated 120V gas valve relay, it ensures reliable startup and consistent flame