Fenwal 35-655505-011 Control

The Fenwal 35-655505-011 is a microprocessor-based 24V Hot Surface Ignition (HSI) control designed for gas-fired heating equipment, including furnaces, boilers, and commercial water heaters. As a direct replacement for 2465H505-011 and 2465H505-113, this module manages the combustion blower, monitors airflow, and ensures precise timing for pilotless burner ignition and flame sensing. Technical specifications include 3 tries for ignition, a 0-second pre-purge, a 15-second inter-purge, and a 4-second Trial for Ignition (TFI) window. The robust circuitry provides on-board diagnostics via an integrated LED to facilitate rapid troubleshooting of common ignition failures. This microprocessor ignition control is engineered for high-duty cycling and maintains system safety by monitoring the flame current and gas valve state throughout the heating cycle, making it a standard choice for OEM-grade HVACR repairs in both residential and light commercial settings.

• Direct Cross-Reference Compatibility: Replaces 2465H505-011 and 2465H505-113 without wiring modifications.
• Advanced Diagnostics: On-board LED provides real-time status and error codes to streamline fault isolation.
• Robust Ignition Sequence: Features 3 trials for ignition to maximize equipment uptime in varying environmental conditions.
• Precise Timing Control: Factory set for 0s pre-purge and 15s inter-purge to meet specific manufacturer airflow requirements.
• Versatile Application: Suitable for natural gas, LP, and manufactured gas appliances across the Fenwal 35-65 series.

Is the 35-655505-011 compatible with 120V ignitors?
This specific model is a 24 VAC control; however, some models in the 35-65 series feature field-selectable line voltage for 120/240V ignitor options. Verify your specific ignitor voltage before installation.

What does the LED flash code indicate?
The diagnostic LED indicates system status, including internal microprocessor failure, flame lockout, or pressure switch faults. Consult the technical manual for the specific pulse-count key.

Does this module support remote flame sensing?
Yes, the Fenwal 35-655505-011 supports both local and remote flame sensing configurations using DETECT-A-FLAME technology with a minimum sense current of 0.7 microamps.

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.