Fenwal 35-605311-221 Module
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Fenwal 35-605311-221 Module

Fenwal 35-605311-221 Module

Upgrade your gas-fired appliance's reliability with the Fenwal 35-605311-221, a microprocessor-based Direct Spark Ignition (DSI) control specifically engineered for precision and safety. This 24 VAC module replaces older, less stable ignition boards in furnaces, boilers, and water heaters, offering a robust 30-second pre-purge cycle to clear the combustion chamber before the 4-second Trial For Ignition (TFI). As a veteran-grade gas ignition module, it features patented DETECT-A-FLAME® technology, ensuring the system only maintains gas flow when a solid flame signal is confirmed. It supports Natural, LP, and manufactured gases, making it a versatile choice for both residential and commercial HVAC part replacements. The integrated diagnostic LED indicators provide instant fault code feedback, significantly reducing troubleshooting time on the job site. Built for extreme environments, it maintains consistent performance across an operating range of -40°F to 176°F, providing the high-voltage spark necessary for dependable burner start-up every time.

Key Benefits for Technicians:

  • Precise Ignition Timing: Microprocessor control ensures repeatable pre-purge and ignition sequences for stable burner operation.
  • On-Board Diagnostics: Rapidly identify issues like "low voltage" or "ignition lockout" using the clear LED fault codes.
  • Flame Sense Accuracy: Features flame current test points for easy microamp measurement during routine maintenance.
  • Multi-Gas Compatibility: Approved for use with Natural Gas, Propane, and manufactured gas systems.
  • Safe Start Technology: Self-checking circuitry prevents the gas valve from opening if a false flame signal is detected.

Common Technical Questions:

What is the purpose of the 30-second pre-purge?
The pre-purge delay ensures the combustion chamber is cleared of any residual gas or debris before the direct spark ignition sequence begins, preventing delayed ignition or "booming" starts.

How do I troubleshoot a "Steady On" LED?
A steady LED typically indicates an internal hardware failure or a power supply issue. Verify the 24 VAC input and the ground wire integrity before concluding the module needs replacement.

Can I use this for remote flame sensing?
Yes, the Fenwal 35-605311-221 supports both local and remote flame sensing configurations, allowing for flexibility depending on the burner and electrode setup.

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.

$79.54

Original: $227.27

-65%
Fenwal 35-605311-221 Module

$227.27

$79.54

Fenwal 35-605311-221 Module

Upgrade your gas-fired appliance's reliability with the Fenwal 35-605311-221, a microprocessor-based Direct Spark Ignition (DSI) control specifically engineered for precision and safety. This 24 VAC module replaces older, less stable ignition boards in furnaces, boilers, and water heaters, offering a robust 30-second pre-purge cycle to clear the combustion chamber before the 4-second Trial For Ignition (TFI). As a veteran-grade gas ignition module, it features patented DETECT-A-FLAME® technology, ensuring the system only maintains gas flow when a solid flame signal is confirmed. It supports Natural, LP, and manufactured gases, making it a versatile choice for both residential and commercial HVAC part replacements. The integrated diagnostic LED indicators provide instant fault code feedback, significantly reducing troubleshooting time on the job site. Built for extreme environments, it maintains consistent performance across an operating range of -40°F to 176°F, providing the high-voltage spark necessary for dependable burner start-up every time.

Key Benefits for Technicians:

  • Precise Ignition Timing: Microprocessor control ensures repeatable pre-purge and ignition sequences for stable burner operation.
  • On-Board Diagnostics: Rapidly identify issues like "low voltage" or "ignition lockout" using the clear LED fault codes.
  • Flame Sense Accuracy: Features flame current test points for easy microamp measurement during routine maintenance.
  • Multi-Gas Compatibility: Approved for use with Natural Gas, Propane, and manufactured gas systems.
  • Safe Start Technology: Self-checking circuitry prevents the gas valve from opening if a false flame signal is detected.

Common Technical Questions:

What is the purpose of the 30-second pre-purge?
The pre-purge delay ensures the combustion chamber is cleared of any residual gas or debris before the direct spark ignition sequence begins, preventing delayed ignition or "booming" starts.

How do I troubleshoot a "Steady On" LED?
A steady LED typically indicates an internal hardware failure or a power supply issue. Verify the 24 VAC input and the ground wire integrity before concluding the module needs replacement.

Can I use this for remote flame sensing?
Yes, the Fenwal 35-605311-221 supports both local and remote flame sensing configurations, allowing for flexibility depending on the burner and electrode setup.

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

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Description

Upgrade your gas-fired appliance's reliability with the Fenwal 35-605311-221, a microprocessor-based Direct Spark Ignition (DSI) control specifically engineered for precision and safety. This 24 VAC module replaces older, less stable ignition boards in furnaces, boilers, and water heaters, offering a robust 30-second pre-purge cycle to clear the combustion chamber before the 4-second Trial For Ignition (TFI). As a veteran-grade gas ignition module, it features patented DETECT-A-FLAME® technology, ensuring the system only maintains gas flow when a solid flame signal is confirmed. It supports Natural, LP, and manufactured gases, making it a versatile choice for both residential and commercial HVAC part replacements. The integrated diagnostic LED indicators provide instant fault code feedback, significantly reducing troubleshooting time on the job site. Built for extreme environments, it maintains consistent performance across an operating range of -40°F to 176°F, providing the high-voltage spark necessary for dependable burner start-up every time.

Key Benefits for Technicians:

  • Precise Ignition Timing: Microprocessor control ensures repeatable pre-purge and ignition sequences for stable burner operation.
  • On-Board Diagnostics: Rapidly identify issues like "low voltage" or "ignition lockout" using the clear LED fault codes.
  • Flame Sense Accuracy: Features flame current test points for easy microamp measurement during routine maintenance.
  • Multi-Gas Compatibility: Approved for use with Natural Gas, Propane, and manufactured gas systems.
  • Safe Start Technology: Self-checking circuitry prevents the gas valve from opening if a false flame signal is detected.

Common Technical Questions:

What is the purpose of the 30-second pre-purge?
The pre-purge delay ensures the combustion chamber is cleared of any residual gas or debris before the direct spark ignition sequence begins, preventing delayed ignition or "booming" starts.

How do I troubleshoot a "Steady On" LED?
A steady LED typically indicates an internal hardware failure or a power supply issue. Verify the 24 VAC input and the ground wire integrity before concluding the module needs replacement.

Can I use this for remote flame sensing?
Yes, the Fenwal 35-605311-221 supports both local and remote flame sensing configurations, allowing for flexibility depending on the burner and electrode setup.

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.

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