Description
The Fenwal 35-725405-115 is a dependable 120 VAC direct spark ignition (DSI) control module engineered to provide reliable ignition sequencing and flame supervision in gas-fired appliances and HVAC systems. Part of Fenwal’s Series 35-72 family of ignition controls, this microprocessor-based module is designed to manage ignition trials, purge timing, and flame sensing for a variety of furnaces, boilers, industrial heaters, and other gas combustion equipment.
Key Features
- 120 VAC Direct Spark Ignition (DSI) control with microprocessor-based timing and sequencing.
- Designed for gas-fired heating appliances including furnaces, boilers, and industrial heaters.
- Precise ignition timing helps ensure safe and consistent burner start-up.
- OEM replacement ignition control for Fenwal Series 35-72 systems.
- Potted multi-pin design (typical of Series 35 controls) for enhanced durability and environmental resistance.






