Smart Hydrostat 3250 Plus Instruction Manual
Smart Hydrostat 3250 Plus
Smart Hydrostat 3250 Plus
Smart Hydrostat 3250 Plus
Smart Hydrostat 3250 Plus Instructions
Here we offer the Smart Hydrostat 3250 Plus manual completely free and in English. We have cataloged this manual in the Hydrostats section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Smart Hydrostat 3250 Plus, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.
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Smart Hydrostat 3250 Plus Specifications
| Feature | Specification |
|---|---|
| Model | 3250-Plus |
| Operating Voltage | 120 VAC, 60 HZ |
| Burner Contacts Rating | 7.4 FLA, 44.4 LRA @ 120 VAC |
| Circulator Contacts Rating | 5.8 FLA, 34.8 LRA @ 120 VAC |
| Low Limit Operating Range | OFF or 110°F (43°C) - 200°F (93°C) |
| High Limit Operating Range | 100°F (38°C) - 220°F (104°C) |
| Operating Differentials | Automatic (10°-20° subtractive), or selectable 10°, 20°, 30° fixed when Economy is OFF |
| Thermostat Heat Anticipator Setting | 0.2A |
| Compatibility | Replaces common cold-start and triple-action Aquastats* |
| Patents | 8,931,708; 8,844,834; 7,891,572; others pending |
| Warranty | Two years from manufacture or one year from installation (whichever occurs first) |
Smart Hydrostat 3250 Plus Details
The Smart Hydrostat 3250 Plus is an advanced temperature limit and low water cut-off (LWCO) control designed specifically for water boilers, integrating innovative thermal management and safety features. At its core is the patented Thermal Targeting™ technology, which intelligently adjusts boiler temperature based on real-time heating demand, leading to significant fuel savings without compromising comfort. This on-board microprocessor continuously evaluates thermostat activity to optimize boiler operation.
A key fuel-saving feature is the Thermal Pre-Purge capability. When activated, the control utilizes latent heat remaining in the boiler from a previous cycle, supplying this “free” energy to the heating zone before energizing the burner. This maximizes efficiency by only firing the burner when the existing heat is insufficient, reducing unnecessary fuel consumption during mild heat calls.
The control boasts a universal design, enabling it to replace traditional cold-start and triple-action Aquastats. It is also Outdoor Reset Ready, allowing for outdoor reset and warm weather shut-down functionality with the optional Hydrolevel OS-100 Outdoor Sensor Kit (sold separately). This adaptability makes it suitable for a wide range of boiler installations and upgrades.
Safety is paramount, with the 3250 Plus offering robust Low Water Cut-Off (LWCO) protection. This function is automatically activated when the control is installed with the Hydrolevel Electro-Well™ (sold separately). The LWCO can be configured for either automatic (default) or manual reset mode, with the manual reset option meeting CSD-1 code requirements for enhanced safety. In manual reset mode, a low water condition immediately shuts down the burner, requiring a physical reset.
The Smart Hydrostat 3250 Plus prioritizes domestic hot water production. It gives preference to low limit settings or calls from an indirect water heater, ensuring a consistent supply. It features “Smart DHW Priority” with override protection, momentarily de-energizing circulator contacts to focus on the indirect tank. If an indirect call persists for 45 minutes, it overrides the priority, energizing the circulator for space heating.
To prevent boiler condensation, the control incorporates a Circulator Hold Off feature. On a call for heat, the circulator is held off until the boiler reaches 125°F, mitigating the potential for corrosive condensate formation. If the boiler temperature drops below 115°F during a heating call, the circulator will re-energize once the temperature recovers to 125°F.
User interaction is simplified through various operating indicators. LEDs, a dynamic display, and a test button provide continuous and on-demand status checks. The dynamic display shows real-time boiler temperature, setting adjustments, and can indicate when “Pur”ging is active. The Test/Settings button allows for quick LWCO testing and viewing of current operational settings.
Installation flexibility is provided through remote mounting kits (sold separately) with various sensor lengths, allowing the control box to be positioned away from the well. The control can also operate in either degrees Fahrenheit or Celsius, adjustable via the program mode. Its comprehensive feature set aims to deliver optimal performance, fuel efficiency, and critical safety for water heating systems.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Smart Hydrostat 3250 Plus, and we answer them below.