
Warrick 26D1B0 Controller
The Warrick 26D1B0 Controller is a professional-grade liquid level control designed specifically for boiler low-water cutoff (LWCO) protection. Engineering-heavy and reliable, this unit features a 1NO/1NC (SPDT) contact configuration rated for 10A at 120V AC resistive loads. As an open-board design utilizing a standard 1/8-inch panel standoff mount, it integrates seamlessly into existing control cabinets where space and direct mounting are required. This conductive level control operates with a 50K Ohm sensitivity, making it ideal for monitoring water levels in commercial and industrial boiler systems. It includes a factory-standard 3-second time delay on decreasing levels to eliminate nuisance tripping caused by turbulence or surging within the sight glass or tank. Designed to meet CSD-1 requirements for boiler safety, the 26D1B0 provides high-accuracy point level control through its sophisticated secondary circuit which maintains a low 2.3 VAC RMS voltage on the probes to prevent electrode plating and extend service life.
Key Benefits- CSD-1 Compliance: Specifically engineered to meet stringent safety standards for boiler low-water cutoff applications.
- Precision Sensitivity: Configured for 50K Ohm conductivity, ensuring accurate sensing in standard water applications while ignoring steam or foam.
- Reduced Nuisance Tripping: The integrated 3-second time delay ensures stable relay operation even in high-vibration or turbulent environments.
- Robust Contact Rating: The 120V 10A SPDT contacts are capable of direct 1/3 HP motor control or signaling heavy-duty alarm circuits.
- Low-Maintenance Design: Utilizes low-voltage AC on probes to significantly reduce electrolysis and buildup on liquid level sensor probes.
How do I wire the Warrick 26D1B0 for low-water cutoff?
Technicians should wire the low-water cutoff probe to the LLCO terminal and use the 1NO/1NC contacts to break the burner circuit. Ensure the common terminal is properly grounded to the boiler shell or a dedicated reference probe for accurate conductive level control.
Can this board replace an older Warrick Series 1 module?
Yes, the Warrick 26D1B0 Controller can replace older Series 1 units, but it typically requires a retrofit plate if the original standoff footprint does not line up with the open-board design.
What does the LED indicator signify during operation?
The on-board LED provides real-time status: a solid light indicates the relay is energized (normal water level), while no light indicates a low-water state. Modern Warrick 26 series boards also use specific blink patterns to diagnose fault conditions and probe ground shorts.
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.
Original: $302.26
-65%$302.26
$105.79Warrick 26D1B0 Controller
The Warrick 26D1B0 Controller is a professional-grade liquid level control designed specifically for boiler low-water cutoff (LWCO) protection. Engineering-heavy and reliable, this unit features a 1NO/1NC (SPDT) contact configuration rated for 10A at 120V AC resistive loads. As an open-board design utilizing a standard 1/8-inch panel standoff mount, it integrates seamlessly into existing control cabinets where space and direct mounting are required. This conductive level control operates with a 50K Ohm sensitivity, making it ideal for monitoring water levels in commercial and industrial boiler systems. It includes a factory-standard 3-second time delay on decreasing levels to eliminate nuisance tripping caused by turbulence or surging within the sight glass or tank. Designed to meet CSD-1 requirements for boiler safety, the 26D1B0 provides high-accuracy point level control through its sophisticated secondary circuit which maintains a low 2.3 VAC RMS voltage on the probes to prevent electrode plating and extend service life.
Key Benefits- CSD-1 Compliance: Specifically engineered to meet stringent safety standards for boiler low-water cutoff applications.
- Precision Sensitivity: Configured for 50K Ohm conductivity, ensuring accurate sensing in standard water applications while ignoring steam or foam.
- Reduced Nuisance Tripping: The integrated 3-second time delay ensures stable relay operation even in high-vibration or turbulent environments.
- Robust Contact Rating: The 120V 10A SPDT contacts are capable of direct 1/3 HP motor control or signaling heavy-duty alarm circuits.
- Low-Maintenance Design: Utilizes low-voltage AC on probes to significantly reduce electrolysis and buildup on liquid level sensor probes.
How do I wire the Warrick 26D1B0 for low-water cutoff?
Technicians should wire the low-water cutoff probe to the LLCO terminal and use the 1NO/1NC contacts to break the burner circuit. Ensure the common terminal is properly grounded to the boiler shell or a dedicated reference probe for accurate conductive level control.
Can this board replace an older Warrick Series 1 module?
Yes, the Warrick 26D1B0 Controller can replace older Series 1 units, but it typically requires a retrofit plate if the original standoff footprint does not line up with the open-board design.
What does the LED indicator signify during operation?
The on-board LED provides real-time status: a solid light indicates the relay is energized (normal water level), while no light indicates a low-water state. Modern Warrick 26 series boards also use specific blink patterns to diagnose fault conditions and probe ground shorts.
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.
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Description
The Warrick 26D1B0 Controller is a professional-grade liquid level control designed specifically for boiler low-water cutoff (LWCO) protection. Engineering-heavy and reliable, this unit features a 1NO/1NC (SPDT) contact configuration rated for 10A at 120V AC resistive loads. As an open-board design utilizing a standard 1/8-inch panel standoff mount, it integrates seamlessly into existing control cabinets where space and direct mounting are required. This conductive level control operates with a 50K Ohm sensitivity, making it ideal for monitoring water levels in commercial and industrial boiler systems. It includes a factory-standard 3-second time delay on decreasing levels to eliminate nuisance tripping caused by turbulence or surging within the sight glass or tank. Designed to meet CSD-1 requirements for boiler safety, the 26D1B0 provides high-accuracy point level control through its sophisticated secondary circuit which maintains a low 2.3 VAC RMS voltage on the probes to prevent electrode plating and extend service life.
Key Benefits- CSD-1 Compliance: Specifically engineered to meet stringent safety standards for boiler low-water cutoff applications.
- Precision Sensitivity: Configured for 50K Ohm conductivity, ensuring accurate sensing in standard water applications while ignoring steam or foam.
- Reduced Nuisance Tripping: The integrated 3-second time delay ensures stable relay operation even in high-vibration or turbulent environments.
- Robust Contact Rating: The 120V 10A SPDT contacts are capable of direct 1/3 HP motor control or signaling heavy-duty alarm circuits.
- Low-Maintenance Design: Utilizes low-voltage AC on probes to significantly reduce electrolysis and buildup on liquid level sensor probes.
How do I wire the Warrick 26D1B0 for low-water cutoff?
Technicians should wire the low-water cutoff probe to the LLCO terminal and use the 1NO/1NC contacts to break the burner circuit. Ensure the common terminal is properly grounded to the boiler shell or a dedicated reference probe for accurate conductive level control.
Can this board replace an older Warrick Series 1 module?
Yes, the Warrick 26D1B0 Controller can replace older Series 1 units, but it typically requires a retrofit plate if the original standoff footprint does not line up with the open-board design.
What does the LED indicator signify during operation?
The on-board LED provides real-time status: a solid light indicates the relay is energized (normal water level), while no light indicates a low-water state. Modern Warrick 26 series boards also use specific blink patterns to diagnose fault conditions and probe ground shorts.
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.












