Fenwal 35-705500-003 Control
The Fenwal 35-705500-003 is a rugged, microprocessor-based 120V Direct Spark Ignition (DSI) control engineered for high-demand gas-fired appliances. This specific Fenwal ignition module is configured for 120VAC operation with a 7-second Trial for Ignition (TFI) period. Designed for professional-grade reliability in commercial cooking equipment, infrared heaters, and crop dryers, it features Local Flame Sensing via the spark electrode, simplifying wiring for technicians in the field. The 35-70 series utilizes DETECT-A-FLAME technology to ensure a safe start and continuous flame monitoring, responding to flame failure in under 0.8 seconds. This unit is a single-try ignition control with no pre-purge (0 seconds), making it ideal for applications requiring immediate ignition sequences. The on-board diagnostic LED provides instant troubleshooting status, while the polarity insensitive flame sensing circuit reduces nuisance lockouts caused by reversed line voltage, ensuring stable performance in variable jobsite conditions.
Key Benefits for Technicians:- Precise Microprocessor Control: Delivers repeatable 7-second timing and consistent 120VAC gas valve engagement.
- Rapid Diagnostics: Integrated LED flashes specific fault codes to identify internal hardware errors or ignition lockouts quickly.
- Simplified Installation: Features local flame sensing, eliminating the need for a separate remote sensor probe in many configurations.
- Robust Field Testing: Includes built-in flame current test pins for real-time micro-amp signal verification with a standard multimeter.
- Versatile Application: UL recognized and FM approved for use in 120V gas burner systems under 400K BTU, including specialized industrial heaters.
How do I reset the Fenwal 35-705500-003 after a lockout?
As a single-try ignition module, a lockout requires a manual reset. You must cycle the 120VAC power at the thermostat or main power source for at least 5 seconds to clear the fault and initiate a new ignition sequence.
What is the minimum flame signal required for operation?
The control requires a minimum flame current of 1.0 µA DC. You can measure this at the FC+ and FC- test pins; a reading of 1.0 VDC on your meter equates to 1.0 µA of flame signal.
Can this module replace a 24V ignition control?
No. The 35-705500-003 is strictly a 120VAC ignition control. Always verify the input voltage and TFI requirements of your specific appliance before swapping boards to prevent component damage.
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: $227.27
-65%$227.27
$79.54Fenwal 35-705500-003 Control
The Fenwal 35-705500-003 is a rugged, microprocessor-based 120V Direct Spark Ignition (DSI) control engineered for high-demand gas-fired appliances. This specific Fenwal ignition module is configured for 120VAC operation with a 7-second Trial for Ignition (TFI) period. Designed for professional-grade reliability in commercial cooking equipment, infrared heaters, and crop dryers, it features Local Flame Sensing via the spark electrode, simplifying wiring for technicians in the field. The 35-70 series utilizes DETECT-A-FLAME technology to ensure a safe start and continuous flame monitoring, responding to flame failure in under 0.8 seconds. This unit is a single-try ignition control with no pre-purge (0 seconds), making it ideal for applications requiring immediate ignition sequences. The on-board diagnostic LED provides instant troubleshooting status, while the polarity insensitive flame sensing circuit reduces nuisance lockouts caused by reversed line voltage, ensuring stable performance in variable jobsite conditions.
Key Benefits for Technicians:- Precise Microprocessor Control: Delivers repeatable 7-second timing and consistent 120VAC gas valve engagement.
- Rapid Diagnostics: Integrated LED flashes specific fault codes to identify internal hardware errors or ignition lockouts quickly.
- Simplified Installation: Features local flame sensing, eliminating the need for a separate remote sensor probe in many configurations.
- Robust Field Testing: Includes built-in flame current test pins for real-time micro-amp signal verification with a standard multimeter.
- Versatile Application: UL recognized and FM approved for use in 120V gas burner systems under 400K BTU, including specialized industrial heaters.
How do I reset the Fenwal 35-705500-003 after a lockout?
As a single-try ignition module, a lockout requires a manual reset. You must cycle the 120VAC power at the thermostat or main power source for at least 5 seconds to clear the fault and initiate a new ignition sequence.
What is the minimum flame signal required for operation?
The control requires a minimum flame current of 1.0 µA DC. You can measure this at the FC+ and FC- test pins; a reading of 1.0 VDC on your meter equates to 1.0 µA of flame signal.
Can this module replace a 24V ignition control?
No. The 35-705500-003 is strictly a 120VAC ignition control. Always verify the input voltage and TFI requirements of your specific appliance before swapping boards to prevent component damage.
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
The Fenwal 35-705500-003 is a rugged, microprocessor-based 120V Direct Spark Ignition (DSI) control engineered for high-demand gas-fired appliances. This specific Fenwal ignition module is configured for 120VAC operation with a 7-second Trial for Ignition (TFI) period. Designed for professional-grade reliability in commercial cooking equipment, infrared heaters, and crop dryers, it features Local Flame Sensing via the spark electrode, simplifying wiring for technicians in the field. The 35-70 series utilizes DETECT-A-FLAME technology to ensure a safe start and continuous flame monitoring, responding to flame failure in under 0.8 seconds. This unit is a single-try ignition control with no pre-purge (0 seconds), making it ideal for applications requiring immediate ignition sequences. The on-board diagnostic LED provides instant troubleshooting status, while the polarity insensitive flame sensing circuit reduces nuisance lockouts caused by reversed line voltage, ensuring stable performance in variable jobsite conditions.
Key Benefits for Technicians:- Precise Microprocessor Control: Delivers repeatable 7-second timing and consistent 120VAC gas valve engagement.
- Rapid Diagnostics: Integrated LED flashes specific fault codes to identify internal hardware errors or ignition lockouts quickly.
- Simplified Installation: Features local flame sensing, eliminating the need for a separate remote sensor probe in many configurations.
- Robust Field Testing: Includes built-in flame current test pins for real-time micro-amp signal verification with a standard multimeter.
- Versatile Application: UL recognized and FM approved for use in 120V gas burner systems under 400K BTU, including specialized industrial heaters.
How do I reset the Fenwal 35-705500-003 after a lockout?
As a single-try ignition module, a lockout requires a manual reset. You must cycle the 120VAC power at the thermostat or main power source for at least 5 seconds to clear the fault and initiate a new ignition sequence.
What is the minimum flame signal required for operation?
The control requires a minimum flame current of 1.0 µA DC. You can measure this at the FC+ and FC- test pins; a reading of 1.0 VDC on your meter equates to 1.0 µA of flame signal.
Can this module replace a 24V ignition control?
No. The 35-705500-003 is strictly a 120VAC ignition control. Always verify the input voltage and TFI requirements of your specific appliance before swapping boards to prevent component damage.
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.
