Fenwal 35-605501-003 Control

The Fenwal 35-605501-003 is a microprocessor-based Direct Spark Ignition (DSI) control engineered for precision timing and reliable burner operation in gas-fired appliances. This 24VAC module features a single-trial ignition sequence (1-try) with a 7-second trial for ignition (TFI) and a 0-second pre-purge, making it an ideal choice for systems requiring immediate spark response. Built for heavy-duty HVACR applications, it utilizes DETECT-A-FLAME technology for robust flame monitoring and includes remote flame sensing capabilities to ensure safe operation. The onboard system diagnostic LED provides clear fault codes, streamlining the troubleshooting process for field technicians. Designed with a standard Noryl grey enclosure, this ignition control module is compatible with natural, LP, and manufactured gases, operating efficiently in ambient temperatures ranging from -40°F to 176°F. Its automatic reset functionality and integrated flame current test points allow for high-accuracy performance monitoring and maintenance in commercial cooking equipment, boilers, and water heaters.

Key Benefits for Contractors:

• Optimized Ignition Timing: Features a 0-second pre-purge and a 7-second TFI for rapid and consistent burner startups.
• Advanced Diagnostics: The integrated diagnostic LED assists in identifying system faults quickly, reducing downtime on the job site.
• Enhanced Safety: Employs remote flame sensing and microprocessor logic to monitor the burner continuously, preventing unsafe gas accumulation.
• Versatile Compatibility: Rated for 24VAC systems and compatible with multiple gas types, suitable for a wide range of OEM replacements.
• Compact & Durable: The Noryl enclosure provides moisture resistance and can be mounted in various orientations to fit tight furnace or boiler cabinets.

Common Questions:

What does the steady LED light indicate on the Fenwal 35-60 series?
A steady LED typically indicates an internal hardware or software failure, suggesting that the ignition control may need to be replaced after verifying power input and grounding.

Can I use this control for local flame sensing?
The 35-605501-003 is specifically configured for remote flame sensing. If your system requires local sensing (sensing through the high-voltage spark electrode), you may need a different model in the 35-60 series or a bridging jumper depending on the wiring diagram.

How do I measure the flame signal on this module?
You can measure the flame signal by connecting a DC micro-ammeter to the FC+ and FC- test pins. A stable reading of at least 0.7 micro-amps is required for reliable operation.

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.