Warrick 26B1A0 Level Control

The Warrick 26B1A0 is a heavy-duty, conductivity-based liquid level control designed specifically for boiler low-water cutoff (LWCO) protection and industrial level monitoring. This open-board level control operates on a 120VAC supply and features a fixed 10K Ohm sensitivity, making it ideal for high-conductivity fluids like city water. Built for reliability in demanding environments, the module utilizes a solid-state design with a standard 3-second time delay on decreasing levels to prevent nuisance tripping caused by surface turbulence or boiler surging.

Engineered for seamless integration, the 26B1A0 mounts via a 1/16" panel standoff and hardware, allowing for compact installation within existing control cabinets. The SPDT dry contacts (1 Form C) are rated at 10A resistive at 120/240VAC, providing versatile switching for burners, alarms, or feed pumps. Compliance-driven technicians will appreciate that this unit meets CSD1 requirements and carries UL 353 limit control recognition, ensuring the safety and regulatory standards found in high-pressure steam and hot water heating applications are fully maintained.

• Precise Conductivity Sensing: The 10K Ohm sensitivity is factory-calibrated for high-conductivity liquids, ensuring accurate detection without false triggers from steam or foam.
• Robust Switching Power: Equipped with SPDT dry contacts rated at 10A, capable of handling 1/3 HP motor loads at 120/240VAC.
• Anti-Short Cycle Protection: A built-in 3-second delay on falling levels stabilizes the system during turbulent "boiling" conditions.
• UL 353 Certified: Recognized as a high-limit safety control, essential for professional boiler room code compliance.
• Broad Operating Range: Sustains reliable performance in ambient temperatures ranging from -40°F to +150°F.

What is the maximum distance for probe wiring?
Using standard 14 or 16 AWG MTW/THHN wire, the 10K Ohm sensitivity allows for a maximum probe-to-control distance of approximately 600 feet, depending on the specific resistance of the liquid and wiring environment.

Can this unit replace a Series 1 control?
Yes, the Series 26 is the primary replacement for the obsolete Series 1 modules. However, ensure you use the appropriate retrofit standoff plates if the original mounting footprint differs.

Does the 26B1A0 require a manual reset?
This specific model is configured for direct operation. While it supports the power outage feature for auto-recovery, manual reset functionality typically requires the addition of an external pushbutton across the reset terminals if "lockout" behavior is mandatory for your LWCO application.

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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.