Description
The Fenwal 35-63J103-013 is a microprocessor-based 24 VAC intermittent pilot ignition control engineered to manage reliable spark-to-pilot ignition and flame sensing in gas-fired heating equipment. Designed as a drop-in replacement for discontinued Johnson Controls G77x series controls, this module delivers precise ignition timing, customizable purge intervals, and built-in diagnostics for safer, more efficient operation in residential and commercial HVAC systems.
Key Features
- 24 VAC Intermittent Pilot Ignition: Controls spark-to-pilot ignition sequences to start burners safely and consistently.
- Microprocessor Logic: Provides precise, repeatable ignition and flame sensing timing for dependable system starts.
- Drop-In Replacement: Designed to directly replace older Johnson Controls G77x series ignition controls with matching wiring and mount layout.
- Custom Purge and Ignition Settings: Supports selectable pre-purge, inter-purge, and “trial for ignition” durations based on application needs.
- Safe Start & Flame Sensing: Continuous flame monitoring improves safety and reduces misfires.
- Diagnostic LED Feedback: On-board LEDs help technicians quickly identify system faults during service.
- Wide Operating Conditions: Designed to function in typical HVAC environments with reliable performance.
