Weil McLain 383-600-069 Control

The Weil-McLain 383-600-069 Low Water Cutoff (LWCO) is an essential boiler safety device engineered for high-performance hydronic systems. This probe-type LWCO is specifically designed for integration with Weil-McLain WM97+, Ultra Commercial, and SlimFit boiler models. It functions by monitoring fluid levels within the heat exchanger, providing a critical boiler burner shutdown signal if levels drop below the safe threshold. This control is a direct OEM replacement part (replaces 571-100-006 in some configurations) and typically features a manual reset and LED status indicators for diagnostic clarity in the field. Built to meet ASME CSD-1 requirements, the Weil-McLain LWCO kit facilitates a 24V or 120V interface, ensuring compatibility across various control panels. For veteran contractors, this kit provides a reliable low water protection solution that maintains the physical integrity of the heat exchanger during dry-fire risks. Its precise electronic sensing mechanism eliminates the mechanical failures often associated with older float-style designs, making it the standard for commercial boiler controls.

• System Compatibility: Explicitly designed for Weil-McLain SlimFit and WM97+ 70/110/155 series, ensuring secondary boiler safety and seamless wiring.
• Durable Probe Design: Utilizes a high-grade electronic probe sensor that resists scaling and sediment buildup compared to traditional float switches.
• Diagnostic Feedback: Features built-in LED status indicators to streamline troubleshooting for service technicians during routine maintenance.
• Code Compliance: Supports adherence to ASME CSD-1 and local jurisdiction low water cutoff requirements for hydronic heating installations.

Is this a manual or automatic reset control?
The 383-600-069 control typically functions as a manual reset device, which is required by many local mechanical codes for high-efficiency boiler applications to ensure a technician inspects the system after a low water event.

Does this kit include the necessary wiring harnesses?
Yes, this Weil-McLain LWCO system is supplied as a kit that includes the probe, control module, and the specific wiring connectors required for the WM97+ and Ultra boiler control boards.

Can I use this on a non-Weil-McLain boiler?
While the internal board may operate on standard voltages, it is engineered as a genuine OEM part for specific Weil-McLain hydronic systems; using it on other brands may void agency listings and is not recommended for technical compliance.

This item is not eligible for free shipping.

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.