Weil McLain 510-811-457 Converion Kit

Upgrade your legacy boiler system with the Weil-McLain 510-811-457 Conversion Kit, a professional-grade solution designed to transition existing controls to the modernized United Technologies Universal Control System (UCS). This comprehensive gas boiler ignition upgrade is specifically engineered for Weil-McLain EGH boilers and serves as a direct replacement for discontinued Honeywell S86H, S86D, S8620, or Johnson Controls G-60 PAK and G-60 PFL ignition modules. By integrating the UCS module, this kit resolves common intermittent pilot ignition failures and ensures reliable flame sensing performance in demanding hydronic applications.

For the field technician, this kit provides a streamlined control module replacement process. It includes the 1003-510 control module, a matched pilot burner assembly with sparker and sensor, high-grade wiring harnesses, and detailed technical instructions. Note that this Weil-McLain ignition kit does not include a gas valve; it is intended for systems where the existing hardware is compatible or remains in good standing. This conversion optimizes signal strength and response time, providing a robust interface for natural gas boiler systems requiring precise ignition timing and safety sequencing.

• Universal Compatibility: Specifically designed to replace aging Honeywell or Johnson Controls modules on EGH series boilers.
• Complete Ignite Package: Includes the UT 1003-510 module and a dedicated pilot assembly for a total ignition system overhaul.
• Direct OEM Fit: Ensures proper mounting and wiring alignment, reducing labor time during Weil-McLain 510-811-457 installation.
• Enhanced System Logic: The United Technologies UCS platform provides superior diagnostic capabilities compared to legacy mechanical or early electronic controls.

Is a gas valve included in this 510-811-457 kit?
No, this specific conversion kit includes the electronic module, pilot burner, and wiring. It is designed to interface with your existing gas valve. If a valve replacement is also required, you must source the 510-811-458 kit or a compatible 24V redundant valve separately.

Which Weil-McLain boiler models support this conversion?
This kit is primarily utilized for EGH model boilers that originally featured G-60 or S86 series ignition systems. Always verify your boiler's series and serial number against the manufacturer’s literature before beginning the conversion.

Can I use this kit for a propane (LP) conversion?
The components in this kit are intended for natural gas applications. Propane systems require specific orifice sizing and different control parameters. Do not attempt to use this kit for LP gas without the correct manufacturer-approved conversion components.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.