Fenwal 35-725919-000 Control
The Fenwal 35-725919-000 Control is a specialized 120V DSI ignition module engineered for precise burner management in commercial and residential heating systems. As a direct spark ignition (DSI) controller, it eliminates the need for a standing pilot, increasing overall system efficiency. This specific model is configured with No Pre-Purge (NoPP), allowing for an immediate ignition sequence upon a call for heat, which is critical for specific atmospheric burner configurations. The 4-second Trial for Ignition (TFI) provides a tight window for flame rectification, ensuring safety and preventing gas buildup during the startup cycle. Technicians frequently utilize this Fenwal 35-725919-000 as an HVAC replacement ignition control due to its robust microprocessor-based design and consistent performance under varying thermal loads. Its multi-pin terminal layout facilitates a straightforward drop-in installation for compatible 120VAC powered heating equipment.
Key Benefits for Technicians:
- Direct Spark Ignition: Provides a high-voltage spark directly to the main burner, removing the mechanical complexity of pilot assemblies.
- Optimized Startup: The No Pre-Purge logic is ideal for systems requiring instantaneous ignition response without delay.
- Precise Safety Timing: A fixed 4-second TFI ensures the gas valve is only energized during a validated ignition window to maintain site safety.
- 120V Line Voltage Operation: Designed specifically for 120V HVAC controls, simplifying wiring in standard power applications without additional transformers.
- Diagnostic Reliability: Microprocessor monitoring reduces nuisance lockouts while providing stable flame sensing capabilities.
Common Questions:
How do I troubleshoot a lockout on the Fenwal 35-725919-000?
Lockouts typically occur if the flame is not sensed within the 4-second TFI. Check the electrode gap, ensure the 120V power supply is phased correctly, and verify that the burner is properly grounded to the module.
Can this module replace a 24V ignition control?
No, this is a 120V DSI control module. Always verify the input voltage of your existing circuit; installing a 120V module in a 24V system will result in component failure and potential safety hazards.
What does 'NoPP' mean for the ignition sequence?
NoPP stands for No Pre-Purge. This means the module begins the spark and opens the gas valve immediately when the thermostat calls for heat, rather than waiting for a combustion blower to clear the heat exchanger.
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.
Fenwal 35-725919-000 Control
The Fenwal 35-725919-000 Control is a specialized 120V DSI ignition module engineered for precise burner management in commercial and residential heating systems. As a direct spark ignition (DSI) controller, it eliminates the need for a standing pilot, increasing overall system efficiency. This specific model is configured with No Pre-Purge (NoPP), allowing for an immediate ignition sequence upon a call for heat, which is critical for specific atmospheric burner configurations. The 4-second Trial for Ignition (TFI) provides a tight window for flame rectification, ensuring safety and preventing gas buildup during the startup cycle. Technicians frequently utilize this Fenwal 35-725919-000 as an HVAC replacement ignition control due to its robust microprocessor-based design and consistent performance under varying thermal loads. Its multi-pin terminal layout facilitates a straightforward drop-in installation for compatible 120VAC powered heating equipment.
Key Benefits for Technicians:
- Direct Spark Ignition: Provides a high-voltage spark directly to the main burner, removing the mechanical complexity of pilot assemblies.
- Optimized Startup: The No Pre-Purge logic is ideal for systems requiring instantaneous ignition response without delay.
- Precise Safety Timing: A fixed 4-second TFI ensures the gas valve is only energized during a validated ignition window to maintain site safety.
- 120V Line Voltage Operation: Designed specifically for 120V HVAC controls, simplifying wiring in standard power applications without additional transformers.
- Diagnostic Reliability: Microprocessor monitoring reduces nuisance lockouts while providing stable flame sensing capabilities.
Common Questions:
How do I troubleshoot a lockout on the Fenwal 35-725919-000?
Lockouts typically occur if the flame is not sensed within the 4-second TFI. Check the electrode gap, ensure the 120V power supply is phased correctly, and verify that the burner is properly grounded to the module.
Can this module replace a 24V ignition control?
No, this is a 120V DSI control module. Always verify the input voltage of your existing circuit; installing a 120V module in a 24V system will result in component failure and potential safety hazards.
What does 'NoPP' mean for the ignition sequence?
NoPP stands for No Pre-Purge. This means the module begins the spark and opens the gas valve immediately when the thermostat calls for heat, rather than waiting for a combustion blower to clear the heat exchanger.
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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Shipping & Returns
Description
The Fenwal 35-725919-000 Control is a specialized 120V DSI ignition module engineered for precise burner management in commercial and residential heating systems. As a direct spark ignition (DSI) controller, it eliminates the need for a standing pilot, increasing overall system efficiency. This specific model is configured with No Pre-Purge (NoPP), allowing for an immediate ignition sequence upon a call for heat, which is critical for specific atmospheric burner configurations. The 4-second Trial for Ignition (TFI) provides a tight window for flame rectification, ensuring safety and preventing gas buildup during the startup cycle. Technicians frequently utilize this Fenwal 35-725919-000 as an HVAC replacement ignition control due to its robust microprocessor-based design and consistent performance under varying thermal loads. Its multi-pin terminal layout facilitates a straightforward drop-in installation for compatible 120VAC powered heating equipment.
Key Benefits for Technicians:
- Direct Spark Ignition: Provides a high-voltage spark directly to the main burner, removing the mechanical complexity of pilot assemblies.
- Optimized Startup: The No Pre-Purge logic is ideal for systems requiring instantaneous ignition response without delay.
- Precise Safety Timing: A fixed 4-second TFI ensures the gas valve is only energized during a validated ignition window to maintain site safety.
- 120V Line Voltage Operation: Designed specifically for 120V HVAC controls, simplifying wiring in standard power applications without additional transformers.
- Diagnostic Reliability: Microprocessor monitoring reduces nuisance lockouts while providing stable flame sensing capabilities.
Common Questions:
How do I troubleshoot a lockout on the Fenwal 35-725919-000?
Lockouts typically occur if the flame is not sensed within the 4-second TFI. Check the electrode gap, ensure the 120V power supply is phased correctly, and verify that the burner is properly grounded to the module.
Can this module replace a 24V ignition control?
No, this is a 120V DSI control module. Always verify the input voltage of your existing circuit; installing a 120V module in a 24V system will result in component failure and potential safety hazards.
What does 'NoPP' mean for the ignition sequence?
NoPP stands for No Pre-Purge. This means the module begins the spark and opens the gas valve immediately when the thermostat calls for heat, rather than waiting for a combustion blower to clear the heat exchanger.
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.
