Description
The Fenwal 35‑605311‑221 is a professional‑grade 24 VAC direct spark ignition control module engineered to provide reliable and repeatable ignition performance in gas‑fired heating systems. This microprocessor‑based ignition control board is designed to manage ignition sequencing, flame detection, and safety monitoring for furnaces, boilers, water heaters, and other gas‑burning appliances that require dependable burner start‑up.
Key Features
- 24 VAC Direct Spark Ignition (DSI) control for gas‑fired HVAC and industrial applications.
- Microprocessor‑based timing for precise, repeatable ignition sequencing.
- DETECT‑A‑FLAME flame sensing technology for enhanced safety and flame verification.
- Customizable pre‑purge and ignition timings for flexible system compatibility.
- Integrated diagnostic LED indicators and flame current test points to help technicians troubleshoot quickly.
- Supports natural, manufactured, or propane gas types.
- Designed for reliable performance from ‑40 °F to 176 °F operating temperature range.
