Hydrolevel 3200-PLUS Hydrostat

The Hydrolevel 3200-PLUS Hydrostat is a professional-grade, 120Vac universal control designed specifically for gas-fired hot water boilers. This triple-function unit streamlines inventory by replacing common aquastat models like the Honeywell L8124E and L8148E. It features an adjustable high limit (100-220°F) and low limit (110-200°F), making it suitable for both cold start and tankless coil applications. The onboard Thermal Targeting technology utilizes a microprocessor to evaluate heat load and adjust boiler temperature accordingly, maximizing fuel economy without requiring an outdoor sensor. For advanced boiler reset functionality, the unit is outdoor reset ready via an optional sensor kit. When paired with a Hydrolevel Electro-Well, it provides integrated low water cut-off (LWCO) protection with manual or automatic reset options. The control includes 24Vac outputs for burner circuits and vent dampers, and a dynamic LED display for real-time temperature monitoring and simplified diagnostics during service calls.

• Universal Replacement: Simplifies service by replacing multiple legacy aquastat models with a single 120V unit.
• Fuel Smart Technology: Integrated Thermal Targeting optimizes the boiler reset ratio to reduce fuel consumption.
• Enhanced System Safety: Automatically activates low water cut-off functionality when installed on a compatible Electro-Well.
• Installer Friendly: Features industry-standard wiring designations and a hinged cover for easy access to internal dial-type settings.
• Condensation Protection: Protects the heat exchanger by holding the circulator off until the boiler reaches 125°F.

Can I use the Hydrolevel 3200-PLUS for low water cut-off without changing the well?
No. While the unit provides temperature limit and boiler reset functions on a standard immersion well, the low water cut-off feature is only activated when used with a Hydrolevel Electro-Well.

Is an outdoor sensor required for the boiler reset function?
An outdoor sensor is not required for the standard Thermal Targeting fuel-saving mode, but it can be added to enable true outdoor reset and warm weather shutdown capability.

Does this control work with both cold start and warm start boilers?
Yes. For cold start systems, simply turn the low limit dial to the "OFF" position. For boilers with tankless coils (warm start), adjust the low limit to maintain the required domestic hot water temperature.

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.