Description
The Fenwal 35‑615526‑223 is a high‑quality 24 VAC Direct Spark Ignition (DSI) Control Module designed for dependable ignition and combustion management in gas‑fired heating systems. This microprocessor‑based control board delivers precise timing, advanced safety sequencing, and integrated diagnostics to ensure reliable burner start‑up and efficient flame monitoring in furnaces, boilers, water heaters, and other commercial or industrial gas appliances.
Key Features
- 24 VAC Direct Spark Ignition (DSI) control with microprocessor logic for consistent ignition performance.
- Three ignition tries (3‑TRY) to improve burner start reliability.
- 30‑second pre‑purge and 30‑second inter‑purge intervals to clear the combustion chamber before ignition and between tries.
- 7‑second Trial‑For‑Ignition (TFI) timing for dependable spark delivery.
- Inducer blower relay control to manage combustion airflow.
- Remote flame sensing and test points enhance installation flexibility.
- Diagnostic LED feedback simplifies troubleshooting and maintenance.
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