Hydrolevel 550 Low Water Cut-Off Manual Reset 120V Hot Water Boiler Safety Control

The Hydrolevel 550 is a manual reset low water cut-off control designed specifically for hot water boiler systems. This essential safety device automatically shuts down the boiler when water levels drop below safe operating conditions, protecting against dangerous dry-fire situations that can cause catastrophic equipment damage.

Key Features:

• 120-volt operation with manual reset test button for safety verification
• Low water cut-off protection prevents boiler dry-firing and overheating
• Includes EL121 probe assembly for accurate water level sensing
• Manual reset design ensures operator awareness before system restart
• Built-in test button allows for regular safety system verification
• Designed for hot water boiler applications
• Durable construction for long-term reliability in harsh boiler room environments

The manual reset feature requires operator intervention after a low water shutdown, ensuring that the underlying cause is addressed before the boiler is returned to service. This control is an essential component of boiler safety systems and helps maintain compliance with boiler operating codes and insurance requirements.