Description
The Fenwal 35‑705701‑103 is a reliable 120 VAC Direct Spark Ignition (DSI) control module designed to provide safe, efficient, and consistent ignition sequencing for gas‑fired heating systems. Engineered with advanced microprocessor controls and precision timing logic, it ensures dependable burner starts and flame sensing performance in residential and commercial HVAC equipment.
Key Features
- Direct Spark Ignition (DSI) — Provides high‑voltage spark for fast and consistent burner ignition without a standing pilot.
- 120 VAC Operation — Compatible with standard residential and commercial gas systems.
- 7‑Second Trial for Ignition — Offers a defined ignition window for reliable flame establishment.
- 15‑Second Pre‑Purge — Clears combustion chamber before ignition for safer startup.
- On‑Board Diagnostics — Built‑in LEDs simplify troubleshooting and help verify system status.
- Durable Construction — Designed to withstand demanding HVAC environments with stable operation from ‑40 °F to 175 °F.
