Warrick 26C1D0R LWCO 120V 26K

The Warrick 26C1D0R is a heavy-duty Series 26 low water cut-off (LWCO) probe-style controller designed for reliable boiler water level control. Operating on a 120V AC primary voltage, this conductive liquid level control utilizes a 26K ohm sensitivity level, making it ideal for standard potable water and steam boiler applications. The unit features a single-pole double-throw (SPDT) contact configuration, rated for 10A at 120/240VAC, allowing for seamless integration into burner circuits or alarm systems. Its plug-in module design facilitates rapid field replacement and minimizes system downtime. Built with solid-state reliability, the 26C1D0R eliminates the mechanical failures associated with float-style switches. Technical specifications include a built-in time delay to prevent nuisance cycling caused by turbulence or surging within the boiler. This industrial liquid level sensor is a standard for contractors requiring precise LWCO 120V performance in commercial heating systems.

• Conductance Actuated: No moving parts in the process fluid, reducing maintenance and failure points.
• 120VAC Operation: Compatible with standard boiler control circuits for direct field replacement.
• 26K Ohm Sensitivity: Optimized for standard water conductivity, preventing false trips or failures to sense levels.
• SPDT Output: Versatile switching capabilities for both low-level shutdown and high-level alarm functions.
• Solid-State Circuitry: Provides consistent response times and resistance to vibration and environmental interference.

Common Technical Questions

What is the proper procedure for testing the 26C1D0R sensitivity?
Technicians should verify the conductivity of the process liquid. For the 26K ohm model, ensure the resistance between the probe and the common (ground) does not exceed the 26,000-ohm threshold when the probe is submerged.

Can this controller be used for high-temperature steam applications?
Yes, the Warrick Series 26 is specifically engineered for steam boiler environments, provided it is paired with the appropriate high-pressure electrode fittings and probes.

Does the 26C1D0R include an automatic or manual reset?
The D0R configuration is typically used in control schemes where the reset logic is handled by the primary burner control or through the wiring of the SPDT contacts.

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.