Warrick 16DB1B0 Circuit Board

The Warrick 16DB1B0 is a high-performance Series 16D open-circuit board designed for precise conductive liquid level control. This dual-pole double-throw (DPDT) control operates on 120VAC and is factory-calibrated for 10K Ohm sensitivity, making it a standard choice for potable water, condensate return, and cooling tower applications. As a solid-state liquid level relay, it utilizes the conductivity of the liquid to complete a low-voltage circuit, providing reliable pump-up or pump-down control. The compact, open-board design allows for seamless integration into existing control panels, and its screw terminal connections ensure secure field wiring. Unlike basic mechanical switches, the 16DB1B0 features AC sensor voltage to prevent probe electrolysis, extending the operational life of your level probes. This Warrick level control board provides the robust switching capacity required for industrial solenoids and motor starters while maintaining a critical level of accuracy for demanding HVACR systems.

• Field-Proven Reliability: The Warrick 16DB1B0 utilizes solid-state switching to eliminate the mechanical failure points common in traditional float switches.
• DPDT Contact Configuration: Features DPDT relays, allowing for simultaneous control of a pump and a remote alarm or status indicator.
• Direct 120V Operation: Designed for standard 120VAC power supply circuits, ensuring compatibility with most commercial HVACR control sets.
• Electrolysis Prevention: Employs AC sensing technology to minimize mineral buildup and corrosion on stainless steel probes.
• Modular Design: The open-frame 16DB1B0 circuit board fits standard Warrick standoffs for fast replacement during service calls.

What is the maximum distance for the probe wiring?
The Warrick 16DB1B0 is rated for long-distance sensing, but for the 10K sensitivity model, it is best practice to keep wire runs under 1,000 feet using 18 AWG shielded cable to minimize parasitic capacitance.

Can this board be used for sewage or wastewater?
While the 10K sensitivity is optimal for clean water, wastewater often requires a lower sensitivity setting (typically 25K to 50K) to avoid nuisance tripping. Verify your medium's conductivity before installation.

How do I test the 16DB1B0 for proper switching?
You can simulate a "high level" by temporarily shorting the 'Probe' terminal to the 'Common' terminal. The DPDT relay should click, and your multimeter should reflect the change in state across the N.O. and N.C. 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.