Description
The Fenwal 35-605601-101 is a 24-volt Direct Spark Ignition (DSI) module engineered for dependable burner ignition sequencing in commercial and residential heating applications. With a 15-second prepurge period and a 4-second Trial for Ignition (TFI), this module provides a controlled, safe ignition sequence that helps protect equipment and occupants by thoroughly purging the combustion chamber before spark initiation.
Designed as a direct replacement or upgrade component, the Fenwal 35-605601-101 integrates seamlessly into gas-fired heating systems requiring DSI control. Its proven ignition logic minimizes nuisance lockouts while maintaining strict safety shutoff compliance.
Key Features
- 24V AC operating voltage for compatibility with standard HVAC control circuits
- 15-second prepurge period ensures safe combustion chamber clearing before ignition
- 4-second Trial for Ignition (TFI) for precise, timed spark activation
- Direct Spark Ignition (DSI) design — no pilot required for streamlined operation
- Automatic safety lockout on ignition failure to protect against unburned gas accumulation
- Compact module design for easy installation and replacement
- Suitable for commercial and residential gas-fired heating equipment
Specifications
- SKU: 35-605601-101
- Brand: Fenwal
- Control Type: Direct Spark Ignition (DSI) Module
- Operating Voltage: 24V AC
- Prepurge Period: 15 seconds
- Trial for Ignition (TFI): 4 seconds
- Application: Gas-fired heating systems
Why Choose the Fenwal 35-605601-101?
Fenwal has long been a trusted name in combustion control technology. The 35-605601-101 DSI module delivers the reliable ignition performance and safety lockout protection that HVAC technicians and facility managers depend on. Its straightforward wiring and drop-in compatibility make it an efficient solution for service calls and planned maintenance alike.
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