Description
The Weil McLain 510-811-502 is a factory-engineered Combination Ignition-Sensing Control Module designed as a direct OEM replacement for compatible Weil McLain boiler systems. Operating at 24 volts, this module integrates both ignition control and flame-sensing functions into a single, compact unit — simplifying service and ensuring reliable, consistent boiler startup performance.
Key Features
- Combination ignition and flame-sensing control in one integrated module
- 24-volt operating voltage for compatibility with standard low-voltage boiler control circuits
- Automatic safety lockout after 3 failed ignition trials, preventing unsafe fuel accumulation
- OEM-engineered replacement part for Weil McLain boiler applications
- Streamlines troubleshooting and service with a unified ignition/sensing design
Safety & Reliability
The built-in 3-trial ignition lockout sequence is a critical safety feature. If the burner fails to light after three consecutive attempts, the module locks out and requires a manual reset — protecting the system from unburned fuel buildup and potential hazards. This fail-safe behavior makes the 510-811-502 a trusted choice for residential and light commercial hydronic heating applications.
Application
- Designed for use with compatible Weil McLain boiler models
- Suitable for residential and light commercial hydronic heating systems
- Direct OEM replacement for simplified installation and assured fit
Specifications
- Brand: Weil McLain
- Part Number / SKU: 510-811-502
- Operating Voltage: 24 Volt
- Control Type: Combination Ignition-Sensing Module
- Lockout: After 3 Ignition Trials
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