Fenwal 35-602900-917 Ignition Module

The Fenwal 35-602900-917 Ignition Module is a high-performance 24V direct spark ignition control engineered for precision timing and flame supervision in gas-fired heating systems. Designed as a microprocessor-based solution, this 24V ignition module provides reliable trial-for-ignition sequences and continuous flame monitoring across natural, propane, and manufactured gas applications. Its compact Noryl gray enclosure and microprocessor ignition control design allow for versatile mounting in space-constrained industrial furnaces, boilers, and commercial water heaters.

Equipped with DETECT-A-FLAME® technology, the 35-602900-917 ensures a safe start by verifying the absence of a flame signal before initiating the ignition cycle. Professional technicians benefit from integrated diagnostic LED indicators that streamline troubleshooting by providing real-time fault codes for ignition lockout or hardware errors. The Fenwal 35-60 series features remote flame sensing capabilities and a 15-second trial-for-ignition (TFI) period, ensuring efficient thermal performance and system safety in demanding field environments.

• Advanced Diagnostics: On-board LED provides immediate status feedback, reducing downtime during service calls.
• Precise Control: Microprocessor circuitry delivers repeatable timing for pre-purge, inter-purge, and ignition trials.
• Flame Supervision: Features dedicated flame current test pins for accurate microamp readings (minimum 0.7 µA required).
• Robust Environmental Rating: Rated for operation in ambient temperatures ranging from -40°F to 176°F.
• Universal Fuel Compatibility: Validated for use with Natural, LP, and Manufactured gas systems.

• How do I reset the module after an ignition lockout? Recovery typically requires a manual reset by cycling the thermostat or removing 24 VAC power for at least 5 seconds.
• What does a steady-on LED indicate? A steady LED light usually points to an internal hardware or software error, necessitating a control replacement if the condition persists after a restart.
• Can this module replace a local sensing setup? Yes, the 35-602900-917 supports both local and remote flame sensing configurations to match specific burner assemblies.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.