Description
Fenwal 35‑671922‑151 Hot Surface Ignition Control Module is a high‑performance ignition control unit designed for commercial and industrial gas‑fired heating systems. This robust module manages and monitors the ignition process, ensuring reliable starts and safe operation in furnaces, boilers, and HVAC equipment that require precise flame control and combustion sequencing.
Key Features
- Microprocessor‑based hot surface ignition control for stable and repeatable ignition performance.
- 24 VAC (or optional 120/240 VAC) input models available depending on configuration.
- Pre‑purge and ignition sequencing to prepare combustion air and ensure safe spark timing.
- Multiple ignition trials increase the likelihood of successful flame establishment.
- Combustion blower relay and pressure switch monitoring to assist integrated system control.
- Diagnostic LEDs and test pins (on compatible models) to simplify service and troubleshooting.






