Fenwal 35-605501-001 Control

The Fenwal 35-605501-001 is a microprocessor-based 24VAC Direct Spark Ignition (DSI) control designed for precise burner sequencing in gas-fired heating equipment. This specific configuration is engineered for immediate response with 0-second pre-purge and a 4-second Trial for Ignition (TFI) on a single try basis. As a common field replacement for JCI G76x series modules, it utilizes Detect-A-Flame technology to provide robust flame sensing and high-speed interruption upon flame failure, typically under 0.8 seconds. The 35-605501-001 ignition module is housed in a rugged, fire-retardant Noryl enclosure and features on-board LED diagnostics to streamline troubleshooting on the job site. With dedicated flame current test points (FC+ and FC-), technicians can accurately measure the minimum 0.7 microamps required for sustained operation. This HVAC direct spark control is suitable for natural, LP, and manufactured gas applications in commercial cooking or furnace environments.

• Technical Precision: Microprocessor control ensures repeatable timing and safe start sequences for high-demand 24V gas ignition systems.
• Simplified Diagnostics: Integrated LED codes allow for rapid fault identification, reducing downtime during service calls.
• Versatile Sensing: Supports both local and remote flame sensing configurations to match existing equipment headers.
• Reliable Design: Conformal-coated circuitry provides moisture resistance up to 95% R.H. in non-condensing mechanical environments.
• Ease of Wiring: Features three ground terminals and standard quick-connect designations for efficient field installation.

What is the lockout behavior for this specific Fenwal model?
This unit is a single-try ignition control. If a flame is not established within the 4-second trial for ignition, the module will enter a lockout state. Depending on system configuration, it may offer an automatic reset after a period of one hour.

How do I verify the flame signal during maintenance?
Technicians should use a DC microammeter connected to the FC terminals. A steady reading of at least 0.7 microamps is necessary to prevent nuisance lockouts and ensure the direct spark module maintains the gas valve circuit.

Is this control compatible with multi-try systems?
No, the 35-605501-001 is strictly a 1-try module with no pre-purge. If your application requires inter-purge or multiple ignition attempts, a different suffix in the Fenwal 35-60 series must be specified.

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.