Description
The Fenwal 35‑679932‑551 Ignition Control is a heavy‑duty 24 VAC microprocessor‑based hot surface ignition (HSI) control module engineered for commercial and industrial gas‑burning systems requiring reliable and precise ignition management. Built to handle high‑output appliances (typically over 400,000 BTU), this control board integrates advanced safety features, proven purge sequencing, and built‑in diagnostics to help minimize downtime and ensure safe combustion operation.
Key Features
- Microprocessor‑based hot surface ignition control for precise combustion sequencing and performance.
- 24 VAC control input with support for line voltages (24/120/240 VAC) depending on system configuration.
- Pre‑purge, inter‑purge, and post‑purge timing to ensure safe start‑up and shutdown sequences.
- Integrated combustion blower relay and pressure switch input for enhanced system control.
- LED diagnostics and flame current test pins simplify troubleshooting and service calls.
- Conformal coating resists moisture and harsh HVAC environments.
