Hydrolevel 500 Low Water Cut-Off

The Hydrolevel 500 Low Water Cut-Off is a professional-grade safety control engineered for hot water boilers in both residential and commercial applications. Operating on 24VAC, this electronic LWCO utilizes a probe to monitor water conductivity, effectively preventing dry firing and mechanical failure. Unlike mechanical float switches, this solid-state control features no moving parts, eliminating the need for periodic blowdowns. The unit is equipped with a manual reset that triggers after a 30-second delay, ensuring compliance with ASME CSD-1 code requirements. It includes the EL1214 sensing probe and features SPDT switch contacts for flexible wiring in burner circuits or alarm systems. With a 160 PSI maximum pressure rating and high-intensity LED indicator lights for power and low water status, this Safgard series control provides precise boiler safety monitoring and simplified troubleshooting via an integrated test button.

Key Benefits for Contractors

• ASME CSD-1 Compliance: Meets rigid safety standards for commercial hot water boiler installations requiring a manual reset.
• Solid-State Reliability: Electronic sensing technology eliminates float-related failures and sediment interference.
• Simplified Diagnostics: On-board LED indicators and a dedicated test button allow for rapid verification of control and burner circuit status.
• Flexible Installation: Compact footprint and 24V operation make it compatible with a wide range of modern hydronic systems.
• Reduced Maintenance: Requires no mechanical cleaning or blowdowns, reducing long-term service call frequency.

Common Questions

Does this unit reset automatically after a low water event?
No, the Hydrolevel 500 is a manual reset model. Once the water level is restored, a technician or operator must manually press the reset button to resume burner operation, as required by many local boiler codes.

Can I use this on a steam boiler?
This specific model is designed for hot water boilers. Steam applications typically require different probe configurations or secondary cut-offs designed for steam environments.

What is the purpose of the burner off delay?
The 15-second burner off delay prevents "nuisance tripping" caused by temporary water surges or air bubbles passing the probe, ensuring the system only shuts down during a genuine low water condition.

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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.