Hydrolevel 450 Low Water Cut-Off

The Hydrolevel 45-450 Safgard 450 is a professional-grade 120V low water cut-off for steam boilers engineered for direct-mount residential and light commercial applications. Utilizing a solid-state EL1214 sensing probe, this non-cycling control ensures precise monitoring without the mechanical failures typical of float-style devices. It features a technical 15-second burner-off delay to compensate for momentary water level fluctuations and surging, preventing nuisance shutdowns. Once a safe water level is restored, the automatic reset circuit activates after a 30-second delay, ideal for systems integrated with an automatic water feeder like the VXT series. Rated for a maximum steam pressure of 15 PSI, this unit eliminates the need for manual blowdowns, significantly reducing maintenance overhead. The electronic LWCO provides clear visual diagnostics via a low-water indicating light, allowing technicians to verify burner circuit status quickly. For contractors, the 3/4" NPT direct-mount design simplifies installation into existing boiler tappings while ensuring robust protection against dry-firing.

• Non-Cycling Operation: Internal 15-second delay prevents short cycling caused by boiler surging or priming.
• Maintenance-Free Design: No moving parts to wear out, stick, or hang up in harsh steam environments.
• System Integration: 120Vac SPDT contacts provide seamless interlocking with burner circuits and optional feeders.
• Simplified Installation: Direct-mount probe threads into standard boiler tappings without additional piping or blowdown valves.
• Heavy-Duty Reliability: Solid-state 45-450 construction designed specifically for the high-temperature demands of steam heating.

How does the automatic reset function interact with a water feeder?
The control automatically reactivates the burner circuit 30 seconds after water makes contact with the EL1214 sensing probe. This delay allows a water feeder to raise the level above the probe to prevent immediate re-tripping.

Can the probe be installed in any orientation?
For proper Hydrolevel 45-450 installation, the probe should be mounted in a horizontal position above the lowest safe water level. Ensure a 1/4" clearance from any boiler surface to prevent grounding issues.

What is the maximum pressure rating for this model?
This 120V steam primary LWCO is rated for standard low-pressure steam applications up to 15 PSI.

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.