The Warrick 26B1C0E LWCO is a heavy-duty, conductivity-based low water cutoff control engineered specifically for boiler safety and liquid level monitoring. This 120V AC open-board module features a factory-set 10K Ohm sensitivity, making it the ideal choice for sensing standard tap water and condensate in commercial steam or hot water systems. Designed to meet CSD-1 requirements and carrying a UL 353 limit control listing, the 26B1C0E provides essential dry-fire protection by interrupting the burner circuit when water levels drop below the probe. It utilizes a reliable conductive probe sensor method, which is less susceptible to mechanical failure than traditional float-style switches. The screw mount standoff design ensures a secure installation within your existing control panel, while the 3-second standard time delay effectively mitigates nuisance shutdowns caused by turbulence or surging water levels within the sight glass or boiler shell. Key Benefits for the Contractor Conductive Sensing Technology: Eliminates moving parts, reducing common points of mechanical failure and mineral-scaling issues typical of float-style LWCOs. Precise 10K Sensitivity: Optimized for municipal water supplies to provide reliable point level control without false trips from steam or foam. Panel-Ready Integration: The screw mount board design allows for fast replacement or retrofit into standard HVACR control enclosures. Code Compliance: Meets UL-353 and CSD-1 standards, ensuring the installation satisfies safety inspections for boiler low water protection. Transient Protection: Built-in 3-second delay on decreasing levels prevents intermittent relay cycling during water level fluctuations. Common Questions & Technical Support How do I test the 26B1C0E during a maintenance call? Perform a slow drain test by firing the burner and lowering the water level until the Warrick 26B1C0E trips the circuit. The integrated LED status indicator will provide visual confirmation of the relay state. Can I use this control for high-purity water or deionized systems? No. The 10K Ohm sensitivity is calibrated for standard conductivity levels. High-purity water has higher resistance and may require a high-sensitivity module (e.g., 26K or 50K) to ensure the boiler safety control functions correctly. Is the time delay adjustable on this model? The 26B1C0E comes with a 3-second standard delay. For applications requiring different timing to prevent pump cavitation or specific surge patterns, contact our team for alternative Series 26 configurations. 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.
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