Warrick DFB1A0 Level Control

The Warrick DFB1A0 is a high-performance 120V dual-level control designed for demanding industrial and commercial HVACR applications. This solid-state liquid level controller utilizes conductivity-based sensing to manage two independent functions: a single-level control and a differential-level operation. This makes it an essential component for low water cutoff (LWCO) systems and pump-up/pump-down sequences in boilers and food service equipment. With a 10K ohm sensitivity and 10A resistive contact rating, the DFB1A0 ensures reliable liquid level control in medium-conductance fluids. The open board design with 1/16" standoffs provides a compact footprint for easy integration into existing control panels. By utilizing AC current on the probes to minimize electrolysis, this conductance level control maintains long-term sensor integrity. This versatile module meets CSD1 requirements, ensuring compliance for steam boiler and water feeder applications where precise electrical level monitoring is critical.

Key Benefits

• Dual Function Versatility: Manages both single-level safety cutoffs and differential level pump control within a single compact module.
• Industrial Grade Reliability: Features SPDT dry contacts rated for 10 amps, capable of handling inductive loads up to 1/3 HP at 120VAC.
• Probe Protection: Delivers a secondary circuit of 11VAC to the electrodes, significantly reducing the risk of mineral build-up and electrolysis.
• Application Flexibility: Engineered for extreme environments with an operating temperature range of -40°F to 150°F.
• Standardized Mounting: 1/16" panel standoff style and quick-connect spade terminals facilitate rapid field replacement and installation.

Common Questions

Is the Warrick DFB1A0 suitable for low water cutoff in steam boilers?
Yes, the DFB1A0 is frequently specified for low water cutoff protection and feedwater control, meeting UL 353 Limit Control standards for safety-critical monitoring.

What is the maximum sensitivity of this control module?
This specific model is factory-set for 10,000 ohm sensitivity, which is the industry standard for most water-based liquid level applications.

Can I use this for both high-level alarm and pump control?
Correct. Because it is a dual-function control, it can simultaneously monitor a high-level alarm state and manage a differential level for automatic tank filling or emptying.

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.