Description
The Fenwal 35-665725-121 Hot Surface Ignition Control Module is a rugged, microprocessor-based ignition control designed for dependable ignition and flame monitoring in gas-fired heating systems. Engineered for use with a wide range of HVAC, furnace, boiler, and commercial gas appliance applications, this advanced control board delivers precise ignition sequencing and safety-oriented performance to keep burners operating efficiently and reliably.
Key Features
- 24 VAC microprocessor-based hot surface ignition control for reliable gas burner management.
- 15-second pre-purge, 30-second inter-purge, and 4-second trial for ignition timing for safe and effective ignition sequencing.
- Multiple ignition attempts (3 tries) without automatic reset to enhance flame-establishing success.
- Built-in combustion blower relay for integrated blower control on compatible systems.
- Flame current test pins and LED diagnostics to simplify troubleshooting and service.
- Moisture-resistant construction for long-term reliability in HVAC environments.
