Fenwal 35-705600-001 Control

Optimize your gas-fired appliance performance with the Fenwal 35-705600-001, a robust 120V Direct Spark Ignition (DSI) control engineered for precision and reliability in demanding commercial and industrial environments. This microprocessor-based module is a direct replacement for legacy analog systems, offering a significant upgrade in timing accuracy (+/- 5%) and system stability. Specifically configured for 120V DSI operation, this unit features a 4-second Trial for Ignition (TFI) and is a No Pre-Purge (NoPP) model, facilitating immediate ignition sequences for applications where rapid heating is essential. The Fenwal 35-705600-001 Control is built to withstand extreme conditions with an operating temperature range of -40°F to 175°F and includes on-board LED diagnostics to streamline troubleshooting on the job site. Designed for multi-pin connector or 1/4 inch quick-connect wiring, it provides versatile installation options for natural gas, LP, or manufactured gas systems.

Key Benefits:

• Advanced Microprocessor Logic: Delivers repeatable, precise timing sequences for safe gas ignition control and flame monitoring.
• Enhanced Flame Sensing: Features 1.0 µA minimum flame sensitivity to prevent nuisance lockouts in difficult applications.
• System Diagnostics: Integrated LED fault codes allow technicians to quickly identify ignition failure, flame loss, or internal hardware errors.
• Polarity Insensitive: Simplifies field wiring by allowing 120VAC line polarity reversal without affecting the flame signal.
• Automatic Reset: Equipped with a one-hour automatic reset function to restore operation following a temporary lockout.

Common Questions:

Is this control compatible with remote flame sensing?
Yes, the Fenwal 35-705600-001 supports both local (single spark and sense) and remote flame sensing configurations depending on your specific burner electrode setup.

What does the 'NoPP' designation mean for my installation?
'NoPP' indicates the control has zero pre-purge, meaning the gas valve is energized and sparking begins immediately upon a call for heat without a delay for combustion air clearing.

How do I test the flame current on this module?
Technicians can measure the flame current by connecting a DC micro-ammeter to the FC+ and FC- test pins; a stable signal should read 1.0 µA DC or higher during operation.

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.