Fenwal 35-605601-003 Ignition Module
The Fenwal 35-605601-003 is a 24VAC microprocessor-based direct spark ignition control designed for precise timing and reliable burner sequencing in gas-fired HVACR equipment. This module is engineered with 0-second prepurge and a 7-second trial for ignition (TFI), making it an ideal solution for applications requiring immediate ignition without delay. Utilizing proprietary DETECT-A-FLAME technology, this control ensures safe starts by accurately sensing flame presence and initiating a rapid lockout if the flame is not established within the TFI window. The 35-60 series is housed in a rugged gray Noryl enclosure, protecting the internal circuitry from typical mechanical room environments. For streamlined HVAC troubleshooting, the board features a multi-color diagnostic LED that provides real-time status updates and fault codes. Contractors can utilize the integrated flame current test points to verify signal strength, ensuring the 24V DSI module operates within the 0.7 microamp minimum threshold for stable performance across natural, LP, or manufactured gas systems.
Key Benefits- Precise Control Logic: Microprocessor circuit provides repeatable timing for direct spark ignition sequences, eliminating the mechanical drift found in older analog controls.
- Enhanced Safety Diagnostics: On-board LED indicator reduces downtime by identifying ignition failures, flame sensing errors, or internal faults.
- Universal Fuel Compatibility: Rated for use with Natural, LP, and Manufactured gases, providing flexibility for diverse job sites.
- Durable Construction: The fire-retardant Noryl N-190 enclosure ensures long-term reliability in varying temperature ranges from -40°F to 176°F.
- Flexible Mounting: Design allows for vertical or horizontal installation, facilitating easier retrofits in tight furnace or boiler cabinets.
What does the 7-second TFI mean for the ignition sequence?
The Trial for Ignition (TFI) is the specific window the Fenwal 35-605601-003 allows for the burner to light and the flame signal to be detected. If the flame sensor does not confirm combustion within these 7 seconds, the module will close the gas valve and enter a lockout state to prevent gas accumulation.
Can this module replace a system with a pilot light?
Yes, this is a DSI ignition control, which is designed to eliminate standing pilots by using a high-voltage spark to ignite the main burner directly, improving energy efficiency and system reliability.
How do I reset the module after a lockout?
Standard recovery involves cycling the thermostat or removing the 24V power supply for 5 seconds. If the unit is an automatic reset model, it may attempt a new cycle after a one-hour delay if the call for heat remains.
This item is not eligible for free shipping.
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 35-605601-003 Ignition Module
The Fenwal 35-605601-003 is a 24VAC microprocessor-based direct spark ignition control designed for precise timing and reliable burner sequencing in gas-fired HVACR equipment. This module is engineered with 0-second prepurge and a 7-second trial for ignition (TFI), making it an ideal solution for applications requiring immediate ignition without delay. Utilizing proprietary DETECT-A-FLAME technology, this control ensures safe starts by accurately sensing flame presence and initiating a rapid lockout if the flame is not established within the TFI window. The 35-60 series is housed in a rugged gray Noryl enclosure, protecting the internal circuitry from typical mechanical room environments. For streamlined HVAC troubleshooting, the board features a multi-color diagnostic LED that provides real-time status updates and fault codes. Contractors can utilize the integrated flame current test points to verify signal strength, ensuring the 24V DSI module operates within the 0.7 microamp minimum threshold for stable performance across natural, LP, or manufactured gas systems.
Key Benefits- Precise Control Logic: Microprocessor circuit provides repeatable timing for direct spark ignition sequences, eliminating the mechanical drift found in older analog controls.
- Enhanced Safety Diagnostics: On-board LED indicator reduces downtime by identifying ignition failures, flame sensing errors, or internal faults.
- Universal Fuel Compatibility: Rated for use with Natural, LP, and Manufactured gases, providing flexibility for diverse job sites.
- Durable Construction: The fire-retardant Noryl N-190 enclosure ensures long-term reliability in varying temperature ranges from -40°F to 176°F.
- Flexible Mounting: Design allows for vertical or horizontal installation, facilitating easier retrofits in tight furnace or boiler cabinets.
What does the 7-second TFI mean for the ignition sequence?
The Trial for Ignition (TFI) is the specific window the Fenwal 35-605601-003 allows for the burner to light and the flame signal to be detected. If the flame sensor does not confirm combustion within these 7 seconds, the module will close the gas valve and enter a lockout state to prevent gas accumulation.
Can this module replace a system with a pilot light?
Yes, this is a DSI ignition control, which is designed to eliminate standing pilots by using a high-voltage spark to ignite the main burner directly, improving energy efficiency and system reliability.
How do I reset the module after a lockout?
Standard recovery involves cycling the thermostat or removing the 24V power supply for 5 seconds. If the unit is an automatic reset model, it may attempt a new cycle after a one-hour delay if the call for heat remains.
This item is not eligible for free shipping.
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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Description
The Fenwal 35-605601-003 is a 24VAC microprocessor-based direct spark ignition control designed for precise timing and reliable burner sequencing in gas-fired HVACR equipment. This module is engineered with 0-second prepurge and a 7-second trial for ignition (TFI), making it an ideal solution for applications requiring immediate ignition without delay. Utilizing proprietary DETECT-A-FLAME technology, this control ensures safe starts by accurately sensing flame presence and initiating a rapid lockout if the flame is not established within the TFI window. The 35-60 series is housed in a rugged gray Noryl enclosure, protecting the internal circuitry from typical mechanical room environments. For streamlined HVAC troubleshooting, the board features a multi-color diagnostic LED that provides real-time status updates and fault codes. Contractors can utilize the integrated flame current test points to verify signal strength, ensuring the 24V DSI module operates within the 0.7 microamp minimum threshold for stable performance across natural, LP, or manufactured gas systems.
Key Benefits- Precise Control Logic: Microprocessor circuit provides repeatable timing for direct spark ignition sequences, eliminating the mechanical drift found in older analog controls.
- Enhanced Safety Diagnostics: On-board LED indicator reduces downtime by identifying ignition failures, flame sensing errors, or internal faults.
- Universal Fuel Compatibility: Rated for use with Natural, LP, and Manufactured gases, providing flexibility for diverse job sites.
- Durable Construction: The fire-retardant Noryl N-190 enclosure ensures long-term reliability in varying temperature ranges from -40°F to 176°F.
- Flexible Mounting: Design allows for vertical or horizontal installation, facilitating easier retrofits in tight furnace or boiler cabinets.
What does the 7-second TFI mean for the ignition sequence?
The Trial for Ignition (TFI) is the specific window the Fenwal 35-605601-003 allows for the burner to light and the flame signal to be detected. If the flame sensor does not confirm combustion within these 7 seconds, the module will close the gas valve and enter a lockout state to prevent gas accumulation.
Can this module replace a system with a pilot light?
Yes, this is a DSI ignition control, which is designed to eliminate standing pilots by using a high-voltage spark to ignite the main burner directly, improving energy efficiency and system reliability.
How do I reset the module after a lockout?
Standard recovery involves cycling the thermostat or removing the 24V power supply for 5 seconds. If the unit is an automatic reset model, it may attempt a new cycle after a one-hour delay if the call for heat remains.
This item is not eligible for free shipping.
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.
