
Fenwal 35-655005-023 Control Board
The Fenwal 35-655005-023 Control Board is a high-performance direct spark ignition control designed for 24VAC gas-fired appliances. Engineered with a microprocessor-based circuit, this module provides precise timing for trial for ignition (TFI) sequences, ensuring reliable burner operation in commercial and industrial HVACR environments. This specific model features a 7-second ignition trial and a 30-second inter-purge period, optimized for systems requiring rigorous flame monitoring and on-board diagnostics. The integrated LED feedback simplifies troubleshooting by providing real-time fault codes, reducing downtime for technicians in the field.
Built for durability and compatibility, the Fenwal 35-655005-023 utilizes DETECT-A-FLAME® technology to maintain consistent flame sensing and safety. The board is housed in a fire-retardant Noryl enclosure with a conformal coating, protecting sensitive components from moisture and environmental stress. This unit is a direct replacement for various 35-65 series modules, offering a 24VAC HSI control solution that streamlines inventory for service contractors. By managing the gas valve and ignition spark with repeatable accuracy, it ensures optimal combustion efficiency across a wide range of furnace and boiler applications.
Key Benefits- Enhanced Diagnostics: Integrated LED allows for rapid identification of ignition lockouts or hardware faults.
- Precise Control: Microprocessor management of inter-purge timing and multiple ignition tries ensures safe startup.
- Rugged Construction: Fire-retardant Noryl N-190 enclosure designed to withstand high-ambient HVAC environments.
- Reliable Sensing: Full-time flame monitoring utilizing advanced flame rectification technology for maximum safety.
Is this board compatible with 120VAC ignitors?
No, this specific model is designed for 24VAC direct spark ignition systems. Always verify your appliance’s voltage requirements before installation.
How do I interpret the diagnostic LED codes?
The LED will flash specific sequences to indicate issues such as ignition lockout, air flow failure, or internal circuit faults. Reference the technical sheet for exact code definitions.
Does this board require an external transformer?
Yes, the 35-65 series typically requires a Class 2 power source providing 18-30 VAC for proper operation of the control logic and gas valve relays.
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.
Original: $204.97
-65%$204.97
$71.74Fenwal 35-655005-023 Control Board
The Fenwal 35-655005-023 Control Board is a high-performance direct spark ignition control designed for 24VAC gas-fired appliances. Engineered with a microprocessor-based circuit, this module provides precise timing for trial for ignition (TFI) sequences, ensuring reliable burner operation in commercial and industrial HVACR environments. This specific model features a 7-second ignition trial and a 30-second inter-purge period, optimized for systems requiring rigorous flame monitoring and on-board diagnostics. The integrated LED feedback simplifies troubleshooting by providing real-time fault codes, reducing downtime for technicians in the field.
Built for durability and compatibility, the Fenwal 35-655005-023 utilizes DETECT-A-FLAME® technology to maintain consistent flame sensing and safety. The board is housed in a fire-retardant Noryl enclosure with a conformal coating, protecting sensitive components from moisture and environmental stress. This unit is a direct replacement for various 35-65 series modules, offering a 24VAC HSI control solution that streamlines inventory for service contractors. By managing the gas valve and ignition spark with repeatable accuracy, it ensures optimal combustion efficiency across a wide range of furnace and boiler applications.
Key Benefits- Enhanced Diagnostics: Integrated LED allows for rapid identification of ignition lockouts or hardware faults.
- Precise Control: Microprocessor management of inter-purge timing and multiple ignition tries ensures safe startup.
- Rugged Construction: Fire-retardant Noryl N-190 enclosure designed to withstand high-ambient HVAC environments.
- Reliable Sensing: Full-time flame monitoring utilizing advanced flame rectification technology for maximum safety.
Is this board compatible with 120VAC ignitors?
No, this specific model is designed for 24VAC direct spark ignition systems. Always verify your appliance’s voltage requirements before installation.
How do I interpret the diagnostic LED codes?
The LED will flash specific sequences to indicate issues such as ignition lockout, air flow failure, or internal circuit faults. Reference the technical sheet for exact code definitions.
Does this board require an external transformer?
Yes, the 35-65 series typically requires a Class 2 power source providing 18-30 VAC for proper operation of the control logic and gas valve relays.
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.
Product Information
Product Information
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Description
The Fenwal 35-655005-023 Control Board is a high-performance direct spark ignition control designed for 24VAC gas-fired appliances. Engineered with a microprocessor-based circuit, this module provides precise timing for trial for ignition (TFI) sequences, ensuring reliable burner operation in commercial and industrial HVACR environments. This specific model features a 7-second ignition trial and a 30-second inter-purge period, optimized for systems requiring rigorous flame monitoring and on-board diagnostics. The integrated LED feedback simplifies troubleshooting by providing real-time fault codes, reducing downtime for technicians in the field.
Built for durability and compatibility, the Fenwal 35-655005-023 utilizes DETECT-A-FLAME® technology to maintain consistent flame sensing and safety. The board is housed in a fire-retardant Noryl enclosure with a conformal coating, protecting sensitive components from moisture and environmental stress. This unit is a direct replacement for various 35-65 series modules, offering a 24VAC HSI control solution that streamlines inventory for service contractors. By managing the gas valve and ignition spark with repeatable accuracy, it ensures optimal combustion efficiency across a wide range of furnace and boiler applications.
Key Benefits- Enhanced Diagnostics: Integrated LED allows for rapid identification of ignition lockouts or hardware faults.
- Precise Control: Microprocessor management of inter-purge timing and multiple ignition tries ensures safe startup.
- Rugged Construction: Fire-retardant Noryl N-190 enclosure designed to withstand high-ambient HVAC environments.
- Reliable Sensing: Full-time flame monitoring utilizing advanced flame rectification technology for maximum safety.
Is this board compatible with 120VAC ignitors?
No, this specific model is designed for 24VAC direct spark ignition systems. Always verify your appliance’s voltage requirements before installation.
How do I interpret the diagnostic LED codes?
The LED will flash specific sequences to indicate issues such as ignition lockout, air flow failure, or internal circuit faults. Reference the technical sheet for exact code definitions.
Does this board require an external transformer?
Yes, the 35-65 series typically requires a Class 2 power source providing 18-30 VAC for proper operation of the control logic and gas valve relays.
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.












