Electronic Low Water Cutoff, Mini with LED and Harness, 120V

Hydrolevel 45-1100 – Electronic Low Water Cutoff for Hot Water Boilers

The Hydrolevel 45-1100 is a 24V electronic low water cutoff designed for use with hot water boilers. It offers dependable burner protection by cutting power when low water conditions are detected—preventing dry-fire situations and system damage. With its compact footprint, integrated test button, and LED indicators, this control is engineered for efficiency, reliability, and ease of service.

Designed for Safety and Simplicity

This unit uses solid-state sensing to detect water presence at the probe and automatically interrupts burner operation if levels drop below safe thresholds. When water returns to the probe, the control resets and resumes burner operation after a short delay, maintaining system uptime without requiring manual intervention.

Key Features

• Low Water Cutoff Function – Automatically shuts off the burner to protect the boiler from operating without sufficient water.
• Automatic Reset – Burner operation resumes after water level returns and a short safety delay has elapsed.
• Compact Housing – Ideal for tight mechanical rooms or retrofit installations.
• Manual Test Button – Allows technicians to simulate a low water condition during service or commissioning.
• Visual Indicators – LED lights provide immediate feedback on system status, including power and low water alerts.

Application and Technical Data

• Model: Hydrolevel 45-1100
• Control Voltage: 24 VAC
• Reset Type: Automatic
• Control Type: Hot water boiler low water cutoff
• Factory Tested: 100% for quality assurance

Installation Recommendations

This model is built for easy mounting but should be installed by a qualified HVAC or plumbing technician to ensure code compliance and correct system integration. Wiring and probe placement must be handled carefully to maintain reliability and avoid false readings.

For the Professional

The 45-1100 is designed to meet field demands with minimal maintenance and high reliability. It provides peace of mind by ensuring the burner never runs under unsafe water levels. The automatic reset and test function streamline service calls, helping contractors maintain high standards of safety with minimal callbacks.

Keep Your System Protected

Boiler damage caused by low water conditions is both dangerous and expensive. The Hydrolevel 45-1100 offers a trusted, electronic safeguard for hot water systems, making it a must-have control for new installs, replacements, or boiler safety upgrades. Choose reliability—choose Hydrolevel.