Description
Hydrolevel Fuel Smart 3250-Plus HydroStat is a 120V universal triple-function control for Oil boilers (incl. w/ tankless coil) with boiler reset, temperature limit & low water cut-off capabilities. It is ideally suited for replacing cold-start and triple-action aquastats.
Operates in auto reset mode, but can be switched to manual reset when used with commercial boiler installations.
Cross-References:
- Honeywell: L7124A, L7148A, L7224C, L7248A, L8124A, L8148A, L7124C, L7124C, L7224A, L7224U, L7248C, L8124C, L8148C
Features:
- Universal triple-function control for oil boilers (incl. cold start and w/ tankless coil) – Temperature Limit Control (TLC), Boiler Reset & Low Water Cut-Off (LWCO)
- Replaces common cold start and triple-action Aquastats (installs on existing well), industry standard wiring
- Use with Hydrolevel Electro-Well for LWCO functionality
- Can be set to either Auto (default) or Manual reset mode
- LWCO test functionality
- Hinged access cover
- Dial-type settings inside
- (6) External colored diagnostic LED’s for displaying statuses
- Dynamic display w/ call for heat indicator
- Smart DHW priority
- Thermal Targeting – adjusts boiler temperature based on heating demand
- Provides automatic shutdown in warm weather w/ optional Outdoor Sensor Kit (sold separately)
- Optional features include Thermal Pre-Purge for heat conservation, C°/F° display, multiple circulator activation options & enhanced condensing protection
- Can be mounted to any surface for secure hold and space economy (w/ optional remote mount kit)
Technical Specifications:
- System Type: Oil-Fired Hot Water Boilers
- Reset: Automatic or Manual (can be selected)
- Electro-Well Connection: 3/4″ NPT or 1/2″ NPT
- Electrical Specs: 120V, 60 Hz, SPDT (Relay Type), NEMA 1 Enclosure
- Control Contacts: 7.4 FLA, 44.4 LRA @120VAC (Burner); 5.8 FLA, 34.8 LRA @120VAC (Circulator)
- Temperature Range: Low Limit – Off or 110°F – 200°F, High Limit – 100°F – 220°F, Differential – Auto (varies between 10°F and 20°F subtractive based on setting and boiler temperature)
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