EcoStor2™ Solar

Introduction

The Bradford White EcoStor2 Solar Water Heater System

The new Bradford White Solar with Gas Backup water heaters are designed to provide reliable performance with enhanced standard features. New design features include an internal double-wall, atmospherically vented heat exchanger for safe and effective heat transfer, a gas control temperature sensor in the upper portion of the water heater to maximize solar efficiency and thermistor wires to allow seamless connection to a solar controller.

Double-wall Heat Exchanger—An atmospherically vented double-wall heat exchanger allows an internal heat exchanger to safely use a propylene glycol/water mix commonly applied in solar thermal heating systems. In the unlikely event that either wall of the heat exchanger leaks, the fluid will follow a vent path to exit the water heater through the heat exchanger fitting. This fluid will run down the outside of the water heater to indicate a leak to the home owner.

Having an immersed heat exchanger enhances heat transfer, being able to heat directly to the potable water.

Gas Control Temperature Sensor—A temperature sensor located in the upper portion of the water heater allows the solar thermal system to maximize the solar collector efficiency. This is due to the potential low temperatures observed in the tank bottom where the immersed heat exchanger is located. The gas backup will only heat the water when the solar thermal system is not producing enough heat to keep the gas control temperature sensor at the temperature level indicated on the gas control, thereby requiring the backup heat.

Thermistor Wiring—Thermistor wiring is provided to allow thermistor connection to the solar thermal control without running wires outside the water heater. Thermistors are not included due to multiple thermistor possibilities with the various solar thermal controls that may be installed on-site. There are 2 pair of wires provided; one in the lower portion of the tank to allow the temperature difference to be read between the water heater and the solar collector, and a second in the upper portion of the water heater to allow a solar control to read the expected delivered temperature.

This service manual supplement is designed to facilitate problem diagnosis and enhance service efficiency. To further promote quicker service times , the gas valve can be removed and replaced without draining the water heater. A special tool is required and will be provided with each gas valve kit shipped from our Service Parts department.

Please read the service manual supplement completely before attempting service on this new series of solar thermal models.

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Bradford-White Corp SDW2TW50T, SDW265T, SDW275S, SDW2504T Bradford White EcoStor2 Solar Water Heater System, Introduction
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SDW2504T, SDW275S, SDW265T, SDW2TW50T, SDW2TW65T specifications

Bradford-White Corp is a well-respected name in the water heating and storage industry, known for its commitment to innovation and energy efficiency. Among its noteworthy offerings are the SDW2TW75T, SDW265T, SDW275S, SDW2TW65T, and SDW2504T models, each designed to meet diverse hot water needs with reliability and superior performance.

The SDW2TW75T is a 75-gallon commercial electric water heater that ensures an ample supply of hot water for large facilities. It features a dual-element design, which allows for efficient heating even in high-demand situations. Constructed with a high-quality tank and sophisticated insulation, the SDW2TW75T minimizes heat loss, maximizing energy efficiency.

In the lineup, the SDW265T stands out with its advanced electronic controls, providing real-time monitoring and precise temperature management. This model is designed for medium to large commercial applications, ensuring consistent performance with a focus on energy conservation. Its durability is further enhanced by Bradford-White’s signature factory-installed insulation, which helps optimize heating efficiency.

Similarly, the SDW275S offers a robust design for high-demand hot water applications. It features a patented Hydrojet Total Performance System, which helps increase efficiency by reducing sediment buildup within the tank. This technology ensures longer-lasting performance and fewer maintenance issues over time, making it a cost-effective choice for businesses.

The SDW2TW65T caters to businesses that require a dependable hot water supply without compromising on space. With a 65-gallon capacity, it is ideal for medium-sized operations. This unit also incorporates advanced safety features, including a temperature and pressure relief valve, ensuring secure and effective operation.

Lastly, the SDW2504T is designed for applications where compact size meets heavy-duty heating needs. With a 50-gallon capacity, this model is perfect for establishments that need a reliable hot water source in a limited footprint. It employs enhanced insulation and energy-efficient heating elements, allowing for quick recovery rates.

In summary, the Bradford-White SDW series represents a leap forward in commercial water heating technology. With models tailored to varying capacities and features, Bradford-White provides solutions built to enhance operational efficiency, ensure longevity, and deliver reliable hot water suitable for diverse applications. These units exemplify the brand’s commitment to quality and performance, making them an excellent investment for any commercial establishment.
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