Warrick 26B1D1F Liquid Level Control

The Warrick 26B1D1F Liquid Level Control is a performance-grade low water cutoff control board engineered for precision fluid management in commercial HVAC and industrial process systems. Operating on a 120VAC supply, this conductive liquid level sensor utilizes a 10,000-ohm sensitivity threshold, making it ideal for clean water and low-conductivity applications. As a direct replacement for Warrick 26B1C1F, it features an updated retrofit standoff style mount, moving away from older screw-mount configurations for faster field integration. This unit functions in direct acting mode with an integrated SPDT (1 NO / 1 NC) relay, providing reliable switching for pumps or alarms. To prevent equipment damage from turbulence or surging, it includes a built-in 3-second time delay. Safety is prioritized through a manual reset with power outage feature, ensuring the system remains offline until a technician verifies the water level via the remote N.C. pushbutton.

Key Benefits for Contractors

• Streamlined Installation: Equipped with spade terminals and a NEMA 1 enclosure, reducing wiring time in the field.
• Direct Retrofit Compatibility: Specifically designed to replace legacy 26B1C1F models with a modernized standoff mounting plate.
• Anti-Short Cycle Protection: The 3-second logic delay filters out momentary level fluctuations, extending the life of contactors and motors.
• Fail-Safe Manual Reset: Critical for boilers and heaters, the power outage feature ensures the system doesn't dry-fire after a utility failure.
• Versatile Signaling: The SPDT relay allows for simultaneous control of a primary load and a remote status indicator.

Frequently Asked Questions

How do I wire the manual reset on the 26B1D1F?
The unit requires a remote-mounted, normally closed (N.C.) pushbutton. When a low-water condition or power loss occurs, the circuit opens and requires a physical press of the button to re-energize the load relay.

What is the difference between the 26B1D1F and the older 26B1C1F?
The primary difference is the physical mounting footprint. The 26B1D1F uses a retrofit standoff style, whereas the discontinued C1F used a traditional screw mount. The electrical specifications and 10,000-ohm sensitivity remain equivalent.

Can this be used for high-temperature condensate applications?
The 26B1D1F is rated for a maximum ambient and water temperature of 150°F. For high-pressure steam applications exceeding this limit, check your probe and sensor head ratings to ensure the entire assembly is compatible.

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.