Hydrolevel CG550P 120VAC Low Water Cut-Off with Manual Reset & EL1214-P Probe

Hydrolevel CG550P 120VAC Low Water Cut-Off with Manual Reset and EL1214-P Sensing Probe

The Hydrolevel CG550P is a 120VAC low water cut-off control engineered to deliver dependable boiler protection with advanced foam-compensating technology. Designed for steam boiler applications, this unit continuously monitors water levels and shuts down the burner when unsafe low-water conditions are detected — helping prevent costly boiler damage and ensuring safe, code-compliant operation.

Key Features

• 120VAC operating voltage for compatibility with standard residential and light commercial boiler systems
• Manual reset (after 30 seconds) following a low water cut-off event, preventing automatic restart until the condition is manually acknowledged
• Built-in test button and indicator light for quick, on-demand system verification and status monitoring
• 90-second FOAM Compensating Intermittent Level Test performed automatically every 10 minutes, reducing nuisance trips caused by foaming boiler water
• Includes EL1214-P Sensing Probe with Long Nut (Part Number 45-563) for accurate water level detection
• Intermittent level testing logic helps distinguish true low-water conditions from temporary foam-induced false readings
• Durable construction suitable for demanding boiler room environments

Foam Compensating Technology

Foaming is a common challenge in steam boiler systems and can trigger false low-water alarms with standard controls. The CG550P addresses this with its 90-second foam-compensating intermittent level test, which runs every 10 minutes. This intelligent testing cycle allows the control to differentiate between actual low-water events and temporary foam conditions, reducing unnecessary shutdowns while maintaining critical safety protection.

Manual Reset Safety

After a low water cut-off event is triggered, the CG550P requires a manual reset — but only after a mandatory 30-second delay. This deliberate pause ensures the operator has time to assess and correct the condition before the boiler is allowed to restart, adding an important layer of operational safety.

Included Components

• CG550P Low Water Cut-Off Control (120VAC)
• EL1214-P Sensing Probe with Long Nut (Part Number 45-563)

Specifications

• Voltage: 120VAC
• Reset Type: Manual (after 30-second delay)
• Foam Compensating Test Duration: 90 seconds
• Foam Compensating Test Interval: Every 10 minutes
• Sensing Probe: EL1214-P with Long Nut
• Probe Part Number: 45-563
• Brand: Hydrolevel
• SKU: CG550P