Fenwal 35-605601-005 Control

The Fenwal 35-605601-005 is a 24VAC DSI control module designed for precise combustion management in gas-fired atmospheric burners. This microprocessor-based ignition control eliminates the need for a standing pilot, utilizing a 10-second trial for ignition (TFI) to ensure safe and efficient burner startup. As a direct spark ignition unit, it features a single try for ignition logic with no pre-purge (NO PP) or inter-purge delays, making it an ideal choice for specific commercial cooking and 120/240V heating applications where immediate spark is required upon a call for heat.

Built with a durable Noryl gray enclosure, the 35-60 series provides on-board LED diagnostics to streamline troubleshooting in the field, allowing technicians to quickly identify flame sensing issues or power faults. It supports remote flame sensing and includes dedicated flame current test pins, requiring a minimum signal of 0.7 microamps for stable operation. This HVACR replacement part is non-position sensitive and can be mounted vertically or horizontally, provided it is shielded from excessive vibration and maintained below the 176°F operating threshold.

• Efficient Startups: High-energy direct spark ignition provides reliable burner lighting without the energy waste of a pilot light.
• Diagnostic Precision: Integrated LED flash codes allow for rapid fault isolation, reducing diagnostic time during service calls.
• Robust Design: Features a flame-retardant Noryl plastic housing and conformal-coated circuitry to withstand high-humidity HVAC environments.
• Flexible Mounting: The 35-605601-005 is not position-sensitive, offering versatile installation options for tight mechanical cabinets.

What does 'NO PP' indicate for this Fenwal module?
'NO PP' stands for No Pre-Purge. This means the module initiates the spark ignition sequence immediately when the thermostat or controller closes the 24V circuit, without a timed delay for combustion air flow.

How do I test the flame signal on this unit?
Technicians should use a DC microammeter connected to the FC+ and FC- flame current test pins. A healthy system should produce a reading of at least 0.7 to 1.0 microamps DC.

Can this unit be used with LP gas?
Yes, the Fenwal 35-605601-005 is compatible with natural, manufactured, and liquefied petroleum (LP) gas types, provided the gas valve and burner orifices are correctly rated for the fuel source.

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.