Description
The Fenwal 35-665936-111 is a 24 VAC microprocessor-based hot surface ignition control designed to reliably manage the ignition and flame sensing sequence in gas-fired heating equipment. This advanced ignition module combines precise timing, safety features, and built-in diagnostics to ensure dependable burner starts and continuous flame monitoring in HVAC systems, furnaces, boilers, and other gas appliances.
Key Features
- 24 VAC microprocessor-based ignition control for consistent, reliable operation.
- Hot Surface Ignition (HSI) with controlled ignition sequencing (pre-purge and inter-purge).
- Three ignition trials before lockout, supporting dependable flame establishment.
- Inducer blower relay for integrated blower management.
- On-board diagnostics (LED) and flame-sense monitoring to assist with troubleshooting.
- Designed to meet CSA safety standards for gas ignition control.
