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The Weil-McLain 511114479 is a float type low water cutoff designed for use with Weil-McLain LGB, 80, 88, and 94 Series boilers. This safety control monitors the water level inside the boiler and shuts down the burner if the water drops below a safe operating level. This prevents dry firing, which can cause severe damage to the heat exchanger and boiler vessel. Low water cutoffs are a critical safety component in any steam or hot water boiler system. HVAC technicians, boiler mechanics, and building engineers rely on these controls to protect equipment and maintain safe system operation. The 511114479 uses a float mechanism to detect water level changes. When the water level falls below the minimum threshold, the float drops and triggers the cutoff switch, interrupting the burner circuit. This design is reliable and widely used in commercial and residential boiler applications. The unit is rated for 50 PSI, making it suitable for low-pressure steam boiler systems. It is built as a direct replacement for Weil-McLain LGB, 80, 88, and 94 Series boilers, ensuring correct fit and function without modification. Proper installation of a low water cutoff extends boiler life and keeps the system compliant with safety codes. This part carries a 1 Year Limited Warranty. Service technicians performing boiler maintenance, boiler replacement, or safety control upgrades will find this a straightforward drop-in solution for the listed Weil-McLain boiler models. Always verify water level control function after installation to confirm proper boiler safety operation.
The Weil-McLain 511114479 provides reliable burner shutdown protection against low water conditions in LGB, 80, 88, and 94 Series boilers. It is a code-compliant safety control rated to 50 PSI and backed by a 1 Year Limited Warranty.
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