Warrick 26C1D1C Control

The Warrick 26C1D1C is a professional-grade conductive liquid level control engineered specifically for boiler low water cutoff (LWCO) protection in commercial and industrial settings. As a direct replacement for the legacy 26C1C1C, this Gems Series 26 control board features a direct acting mode of operation with a sensitivity of 26,000 ohms. Built to meet stringent CSD1 safety requirements, the unit operates on a 120VAC supply voltage and heavy-duty SPDT (Single Pole Double Throw) relay contacts. The NEMA 1 enclosure protects the internal circuitry, while the snap-thru standoff mounting and spade terminals facilitate a fast retrofit installation. To prevent nuisance shutdowns during turbulent water conditions or momentary power fluctuations, the board includes a built-in 3-second time delay and a manual reset function via a remote mount normally closed pushbutton.

Product Benefits for the Contractor:

• Universal Retrofit Compatibility: Designed as a drop-in liquid level control replacement for the 26C1C1C, utilizing retrofit standoff holes for mounting into existing panels.
• Enhanced System Protection: The UL-listed Limit Control ensures code compliance for high-pressure steam boilers and hydronic heating systems.
• Reduced Electrolysis: Employs non-powered bridge contacts to minimize electrode plating and extend the life of the probes.
• Advanced Diagnostics: Features on-board LED monitoring to quickly verify power status and relay activation during troubleshooting.
• Reliable Operation: The 3-second delay on drop-out prevents rapid cycling of the burner circuit due to surging or foaming boiler water.

Frequently Asked Questions:

How do I wire the manual reset button for the 26C1D1C?
The Warrick 26C1D1C requires a normally closed (NC) pushbutton wired to the manual reset terminals. The reset sequence can only be initiated once the liquid level has risen back to the probe, closing the circuit.

What is the difference between the 26C1C1C and the 26C1D1C?
The 26C1D1C is the direct superseding model. It maintains the same 120V liquid level control specs, 26k ohm sensitivity, and SPDT relay logic while offering updated internal component reliability.

Can the time delay be adjusted on this board?
While this specific model comes with a built-in 3-second time delay, the Series 26 platform allows for factory-set delays up to 90 seconds. For standard LWCO applications, the 3-second buffer is the industry standard to prevent nuisance trips.

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.