Description
The Weil McLain 511-330-090 is an OEM control module engineered to deliver safe, reliable ignition sequencing for Weil McLain boiler systems. Featuring a built-in 10-second pre-purge cycle, this module clears residual gases from the combustion chamber before ignition, significantly reducing the risk of unsafe light-off conditions and helping to protect both equipment and building occupants.
Key Features
- 10-second pre-purge cycle purges combustion chamber of residual gases prior to ignition
- OEM Weil McLain replacement module for precise fit and compatibility
- Engineered for reliable ignition sequencing and consistent boiler startup
- Helps protect heating equipment and occupants by minimizing unsafe ignition conditions
- Direct replacement designed to restore original system performance
Why Pre-Purge Matters
A pre-purge sequence is a critical safety step in boiler operation. Before the ignition spark is initiated, the control module runs the system blower or inducer for a set period — in this case, 10 seconds — to evacuate any unburned fuel or combustion gases that may have accumulated. This step is essential for safe, code-compliant boiler operation and helps extend the service life of heat exchangers and combustion components.
Application
- Designed for use with compatible Weil McLain boiler systems
- Ideal for service technicians performing control module replacement or upgrade
- Suitable for residential and light commercial hydronic heating applications
Why Choose Jackson Systems
Jackson Systems stocks genuine OEM and OEM-equivalent HVAC controls from trusted manufacturers like Weil McLain. Order the 511-330-090 Control Module today for fast shipping and expert support.
