Slant Fin 461-010-000 Aquastat

The Slant Fin 461-010-000 Aquastat is a mission-critical Hydrostat 3200-PLUS control designed for high-performance hydronic boiler management. This unit serves as the direct replacement for 410-537-000, engineered for boilers manufactured after September 2012. Built by Hydrolevel, this triple-action aquastat performs three essential functions: temperature limit control, low water cut-off (LWCO), and boiler reset control. It features advanced thermal targeting technology that dynamically adjusts the boiler temperature based on heating demand, significantly improving fuel efficiency without requiring an outdoor sensor. For professionals seeking ultimate precision, this 120 VAC boiler control is outdoor reset ready with the addition of a separate sensor kit. It is fully compatible with Slant Fin’s Sentinel, Sentry, Victory, and Galaxy series, providing a universal solution for cold-start and tankless coil water boilers. The onboard microprocessor manages a manual or automatic reset, and the diagnostic LED indicators allow for rapid hydronic boiler troubleshooting in the field.

• Direct Replacement Logic: Specifically designed to supersede obsolete Slant Fin 410-537-000 controls to restore system integrity.
• Fuel Optimization: Employs thermal targeting to match boiler output to actual load, reducing short-cycling and fuel consumption.
• Integrated Safety: Provides low water cut-off (LWCO) protection when paired with an Electro-Well, eliminating the need for additional external safety devices.
• System Versatility: Seamlessly manages both space heating and domestic hot water priority for boilers equipped with tankless coils.
• Contractor-Focused Diagnostics: Features clear status LEDs and a test button to streamline setup and aquastat installation.

Is this control compatible with older Slant Fin models?
The 461-010-000 is the designated oem replacement part for the 410-537-000 and is optimized for use with Sentinel, Sentry, and Galaxy series boilers built post-2012.

Does this unit require an outdoor sensor for reset functionality?
No, it uses thermal targeting to provide reset logic based on return temperatures. However, it is compatible with an optional OS-100 kit if a physical outdoor reset is preferred.

Will the LWCO work with my existing immersion well?
The low water cut-off function requires a Hydrolevel Electro-Well to be active. When installed in a standard immersion well, it functions solely as a temperature limit and circulator control.

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.