Electronic Auto Reset Low Water Cut-Off, 24V

Taco LTA-2 Low Water Cut-Off – Precision Boiler Protection for Hydronic Systems

The Taco LTA-2 is an electronic low water cut-off designed to protect hot water boilers from dry firing conditions. Built with a microprocessor-based control platform and engineered for durability, this unit detects low water levels with precision and shuts down the boiler to prevent damage, system failure, or safety hazards.

Ideal for closed-loop hydronic heating applications, the LTA-2 is UL-listed, designed for indoor use, and provides consistent performance in both residential and commercial boiler installations. With automatic reset functionality and extended probe range, it’s a dependable solution that helps contractors meet safety requirements with confidence.

Professional-Grade Advantages

• Electronic Monitoring – Microprocessor-driven technology provides accurate water level detection, even with high-impedance conditions (up to 40 k?).
• Automatic Reset – System automatically resumes operation when safe water levels return, reducing downtime and the need for manual intervention.
• Test Button Included – Built-in test switch allows for easy system diagnostics and verification of shutdown functionality during maintenance or commissioning.
• Durable Enclosure – NEMA 1-rated for indoor environments, offering solid protection for control components in boiler rooms and utility spaces.
• Probe Compatibility – Designed for compatibility with Taco probes, ensuring consistent performance and minimal maintenance.

Key Technical Data

• Thread Size: 3/4" NPT
• Control Voltage: 24V AC
• Operating Pressure: Up to 250 PSI
• Temperature Range: 32°F to 150°F
• Probe Sensitivity: 20 k? nominal, up to 40 k? maximum
• Mounting: Horizontal or vertical probe installation
• Enclosure: NEMA 1 indoor rated

Installation Considerations

While the LTA-2 is designed for streamlined integration, installation should be completed by a licensed HVAC or plumbing professional. Proper grounding, wiring, and probe placement are critical for system accuracy and safety. Always follow the manufacturer's installation manual and local code requirements.

Contractor Insights

For Hydronic Pros: The LTA-2 helps you protect system investments by providing early shutdown in low water scenarios. It reduces liability, improves compliance with inspection requirements, and supports long-term equipment performance. Its automatic reset and wide probe range simplify servicing and diagnostics on the job.

For Facility Maintenance Teams: Easy access to the test function and reliable reset logic make this cut-off ideal for use in mechanical rooms where quick troubleshooting and safety compliance are priorities.

Reliable Protection That Pays Off

Low water conditions can cause serious damage to boilers. The Taco LTA-2 offers a cost-effective way to mitigate those risks, providing peace of mind and improved system uptime. Backed by Taco's reputation for quality, this cut-off is a smart addition to any boiler installation that values safety and performance.