Hydrolevel 550SVR Low Water Cut-Off
The Hydrolevel 550SVR Low Water Cut-Off is a professional-grade safety control designed to prevent dry firing in 120Vac gas or oil-fired boilers. This Safgard 550SVR LWCO features a 30-second delay to filter out nuisance shutdowns from temporary water surges, ensuring the burner circuit only locks out during sustained low-water events. As a secondary control for steam boilers or a primary limit for hot water systems, it meets ASME CSD-1 requirements for commercial applications. This specialized 45-558 kit includes the EL1214-RSV sensing probe, which is purpose-built for remote mounting when space or configuration prevents direct box-to-boiler connection. The heavy-duty 120V low water cut-off utilizes a mechanical test button to simulate low water conditions for code-compliant diagnostic testing. Integrating this Hydrolevel 45-558 into your hydronic loop provides critical fail-safe protection for high-value heating equipment, utilizing a 3/4" NPT connection and 120V AC input for seamless field integration.
Key Benefits- Remote Installation Flexibility: The EL1214-RSV probe allows the control box to be mounted remotely from the sensor, solving clearance issues in tight mechanical rooms.
- Manual Reset Security: Locks out the burner circuit after a 30-second low-water detection, preventing automatic restarts that could mask systemic leaks or failures.
- Nuisance Trip Protection: Built-in timing delay ignores temporary water level fluctuations caused by pump cycles or air pockets.
- Simplified Diagnostics: Integrated test button and LED status lights allow technicians to verify relay operation and lockout functions without draining the system.
- No Moving Parts: The electronic sensing technology eliminates the sticking or scaling common in traditional float-type cut-offs, reducing maintenance overhead.
Can the manual reset be bypassed or automated?
No, the 550SVR is engineered for manual reset only to comply with CSD-1 and other safety codes. If the water level drops and triggers a lockout, a technician must physically inspect the system and reset the control to restore heating.
Is this probe compatible with standard 3/4 inch NPT fittings?
Yes, the included EL1214-RSV probe features a standard 3/4" NPT connection. Ensure no Teflon tape is used on the threads, as the probe requires a metal-to-metal ground to the boiler shell for accurate conductivity sensing.
What is the difference between the 550SVR and standard 550 models?
The "SVR" designation indicates this model is packaged specifically with the remote-mounting sensing probe (EL1214-RSV) for setups where the control box cannot be attached directly to the sensing probe assembly.
This item is not eligible for free shipping.
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.
Original: $254.77
-65%$254.77
$89.17Hydrolevel 550SVR Low Water Cut-Off
The Hydrolevel 550SVR Low Water Cut-Off is a professional-grade safety control designed to prevent dry firing in 120Vac gas or oil-fired boilers. This Safgard 550SVR LWCO features a 30-second delay to filter out nuisance shutdowns from temporary water surges, ensuring the burner circuit only locks out during sustained low-water events. As a secondary control for steam boilers or a primary limit for hot water systems, it meets ASME CSD-1 requirements for commercial applications. This specialized 45-558 kit includes the EL1214-RSV sensing probe, which is purpose-built for remote mounting when space or configuration prevents direct box-to-boiler connection. The heavy-duty 120V low water cut-off utilizes a mechanical test button to simulate low water conditions for code-compliant diagnostic testing. Integrating this Hydrolevel 45-558 into your hydronic loop provides critical fail-safe protection for high-value heating equipment, utilizing a 3/4" NPT connection and 120V AC input for seamless field integration.
Key Benefits- Remote Installation Flexibility: The EL1214-RSV probe allows the control box to be mounted remotely from the sensor, solving clearance issues in tight mechanical rooms.
- Manual Reset Security: Locks out the burner circuit after a 30-second low-water detection, preventing automatic restarts that could mask systemic leaks or failures.
- Nuisance Trip Protection: Built-in timing delay ignores temporary water level fluctuations caused by pump cycles or air pockets.
- Simplified Diagnostics: Integrated test button and LED status lights allow technicians to verify relay operation and lockout functions without draining the system.
- No Moving Parts: The electronic sensing technology eliminates the sticking or scaling common in traditional float-type cut-offs, reducing maintenance overhead.
Can the manual reset be bypassed or automated?
No, the 550SVR is engineered for manual reset only to comply with CSD-1 and other safety codes. If the water level drops and triggers a lockout, a technician must physically inspect the system and reset the control to restore heating.
Is this probe compatible with standard 3/4 inch NPT fittings?
Yes, the included EL1214-RSV probe features a standard 3/4" NPT connection. Ensure no Teflon tape is used on the threads, as the probe requires a metal-to-metal ground to the boiler shell for accurate conductivity sensing.
What is the difference between the 550SVR and standard 550 models?
The "SVR" designation indicates this model is packaged specifically with the remote-mounting sensing probe (EL1214-RSV) for setups where the control box cannot be attached directly to the sensing probe assembly.
This item is not eligible for free shipping.
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.
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Description
The Hydrolevel 550SVR Low Water Cut-Off is a professional-grade safety control designed to prevent dry firing in 120Vac gas or oil-fired boilers. This Safgard 550SVR LWCO features a 30-second delay to filter out nuisance shutdowns from temporary water surges, ensuring the burner circuit only locks out during sustained low-water events. As a secondary control for steam boilers or a primary limit for hot water systems, it meets ASME CSD-1 requirements for commercial applications. This specialized 45-558 kit includes the EL1214-RSV sensing probe, which is purpose-built for remote mounting when space or configuration prevents direct box-to-boiler connection. The heavy-duty 120V low water cut-off utilizes a mechanical test button to simulate low water conditions for code-compliant diagnostic testing. Integrating this Hydrolevel 45-558 into your hydronic loop provides critical fail-safe protection for high-value heating equipment, utilizing a 3/4" NPT connection and 120V AC input for seamless field integration.
Key Benefits- Remote Installation Flexibility: The EL1214-RSV probe allows the control box to be mounted remotely from the sensor, solving clearance issues in tight mechanical rooms.
- Manual Reset Security: Locks out the burner circuit after a 30-second low-water detection, preventing automatic restarts that could mask systemic leaks or failures.
- Nuisance Trip Protection: Built-in timing delay ignores temporary water level fluctuations caused by pump cycles or air pockets.
- Simplified Diagnostics: Integrated test button and LED status lights allow technicians to verify relay operation and lockout functions without draining the system.
- No Moving Parts: The electronic sensing technology eliminates the sticking or scaling common in traditional float-type cut-offs, reducing maintenance overhead.
Can the manual reset be bypassed or automated?
No, the 550SVR is engineered for manual reset only to comply with CSD-1 and other safety codes. If the water level drops and triggers a lockout, a technician must physically inspect the system and reset the control to restore heating.
Is this probe compatible with standard 3/4 inch NPT fittings?
Yes, the included EL1214-RSV probe features a standard 3/4" NPT connection. Ensure no Teflon tape is used on the threads, as the probe requires a metal-to-metal ground to the boiler shell for accurate conductivity sensing.
What is the difference between the 550SVR and standard 550 models?
The "SVR" designation indicates this model is packaged specifically with the remote-mounting sensing probe (EL1214-RSV) for setups where the control box cannot be attached directly to the sensing probe assembly.
This item is not eligible for free shipping.
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.
