Fenwal 35-725205-017 Control
The Fenwal 35-725205-017 is a microprocessor-based 120V DSI Control engineered for high-precision direct spark ignition in gas-fired commercial cooking, infrared burners, and industrial heating equipment. This ignition control module utilizes the proprietary DETECT-A-FLAME® flame sensing technology for a safe start routine, ensuring the system only proceeds when specific safety parameters are met. Designed as a rugged HVAC replacement part, it features a 15-second trial for ignition (TFI) period and is compatible with both natural gas and LP systems. The microprocessor circuit provides repeatable timing cycles, including custom pre-purge and inter-purge sequences, to maximize combustion efficiency while mitigating the risk of unburned gas accumulation. Its potted multi-pin connector construction provides superior resistance to vibration and moisture in demanding mechanical environments.
Key Benefits for Contractors- Advanced Safety: Integrated flame rectification circuit continuously monitors for flame presence, triggering a hard lockout if the 15-second TFI expires without detection.
- Broad Compatibility: This 120 VAC ignition module is utilized across diverse applications including crop dryers, construction heaters, and commercial boilers.
- Diagnostic Support: On-board LEDs provide instant status and error codes, simplifying troubleshooting during service calls.
- Robust Design: Certified to ANSI Z21.20 and UL 372 standards, with a operating temperature range of -40°F to +175°F for reliable performance in extreme conditions.
What is the reset procedure after a hard lockout?
To clear a lockout on the Fenwal 35-725205-017, cycle the thermostat's call for heat or remove 120V input power to the control for several seconds before restoring.
Can this module support remote flame sensing?
Yes, this specific 35-72 series control supports both local (single spark and sense) and remote flame sensing configurations depending on your burner assembly and electrode setup.
Is this unit suitable for outdoor equipment?
The potted design of this DSI control makes it highly resistant to washdown and environmental stressors, though it should always be mounted within a protected enclosure as per manufacturer specifications.
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 35-725205-017 Control
The Fenwal 35-725205-017 is a microprocessor-based 120V DSI Control engineered for high-precision direct spark ignition in gas-fired commercial cooking, infrared burners, and industrial heating equipment. This ignition control module utilizes the proprietary DETECT-A-FLAME® flame sensing technology for a safe start routine, ensuring the system only proceeds when specific safety parameters are met. Designed as a rugged HVAC replacement part, it features a 15-second trial for ignition (TFI) period and is compatible with both natural gas and LP systems. The microprocessor circuit provides repeatable timing cycles, including custom pre-purge and inter-purge sequences, to maximize combustion efficiency while mitigating the risk of unburned gas accumulation. Its potted multi-pin connector construction provides superior resistance to vibration and moisture in demanding mechanical environments.
Key Benefits for Contractors- Advanced Safety: Integrated flame rectification circuit continuously monitors for flame presence, triggering a hard lockout if the 15-second TFI expires without detection.
- Broad Compatibility: This 120 VAC ignition module is utilized across diverse applications including crop dryers, construction heaters, and commercial boilers.
- Diagnostic Support: On-board LEDs provide instant status and error codes, simplifying troubleshooting during service calls.
- Robust Design: Certified to ANSI Z21.20 and UL 372 standards, with a operating temperature range of -40°F to +175°F for reliable performance in extreme conditions.
What is the reset procedure after a hard lockout?
To clear a lockout on the Fenwal 35-725205-017, cycle the thermostat's call for heat or remove 120V input power to the control for several seconds before restoring.
Can this module support remote flame sensing?
Yes, this specific 35-72 series control supports both local (single spark and sense) and remote flame sensing configurations depending on your burner assembly and electrode setup.
Is this unit suitable for outdoor equipment?
The potted design of this DSI control makes it highly resistant to washdown and environmental stressors, though it should always be mounted within a protected enclosure as per manufacturer specifications.
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
Shipping & Returns
Shipping & Returns
Description
The Fenwal 35-725205-017 is a microprocessor-based 120V DSI Control engineered for high-precision direct spark ignition in gas-fired commercial cooking, infrared burners, and industrial heating equipment. This ignition control module utilizes the proprietary DETECT-A-FLAME® flame sensing technology for a safe start routine, ensuring the system only proceeds when specific safety parameters are met. Designed as a rugged HVAC replacement part, it features a 15-second trial for ignition (TFI) period and is compatible with both natural gas and LP systems. The microprocessor circuit provides repeatable timing cycles, including custom pre-purge and inter-purge sequences, to maximize combustion efficiency while mitigating the risk of unburned gas accumulation. Its potted multi-pin connector construction provides superior resistance to vibration and moisture in demanding mechanical environments.
Key Benefits for Contractors- Advanced Safety: Integrated flame rectification circuit continuously monitors for flame presence, triggering a hard lockout if the 15-second TFI expires without detection.
- Broad Compatibility: This 120 VAC ignition module is utilized across diverse applications including crop dryers, construction heaters, and commercial boilers.
- Diagnostic Support: On-board LEDs provide instant status and error codes, simplifying troubleshooting during service calls.
- Robust Design: Certified to ANSI Z21.20 and UL 372 standards, with a operating temperature range of -40°F to +175°F for reliable performance in extreme conditions.
What is the reset procedure after a hard lockout?
To clear a lockout on the Fenwal 35-725205-017, cycle the thermostat's call for heat or remove 120V input power to the control for several seconds before restoring.
Can this module support remote flame sensing?
Yes, this specific 35-72 series control supports both local (single spark and sense) and remote flame sensing configurations depending on your burner assembly and electrode setup.
Is this unit suitable for outdoor equipment?
The potted design of this DSI control makes it highly resistant to washdown and environmental stressors, though it should always be mounted within a protected enclosure as per manufacturer specifications.
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.
