CAUTION

Before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation.

FLUSHING PROCEDURE FOR MINERAL SCALE REMOVAL FROM HEAT EXCHANGER

The amount of calcium carbonate (minerals) released from water is in direct proportion to water temperature and usage. The higher the water temperature or water usage and the harder the water (more dissolved calcium carbonate), the more mineral deposits are dropped out of the water. This is the mineral scale that forms in pipes, water heaters, and on cooking utensils.

Mineral accumulation reduces the efficiency and longevity of the heat exchanger coil and will cause the water heater to malfunction. The mineral scale may need to be periodically removed from the heat exchanger (indicated by the “LC” code on the remote display). The usage of water softening equipment greatly reduces the hardness of the water. However, this equipment does not always remove all of the hardness (minerals). The heat exchanger may occasionally need to be flushed to clear out the mineral deposits. Use the following procedure and Figure 20 to flush the heat exchanger and remove the mineral scale.

1.Disconnect power to the water heater.

2.Close the shut-off valves in the cold water inlet and outlet supply (V3 and V4).

3.Connect pump outlet hose (H1) to the cold water line at valve (V2). Connect drain hose (H3) to valve (V1).

4.Pour 4 gallons of virgin, food grade, white vinegar or citric acid into a 5 gallon bucket.

5.Place the drain hose (H3) and the hose (H2) to the pump inlet into the cleaning solution.

6.Open the both valves (V1 and V2) to the hot and cold water lines.

7.Turn on power to the circulating pump and allow the vinegar to circulate through the heat exchanger coil for at least 45 minutes. Heat exchangers containing a considerable amount of minerals may require several hours.

8.Turn off power to the circulating pump.

9.Remove the free end of the drain hose (H3) from the pail and route it to a drain.

10.Close the valve (V2) and open shut-off valve (V4). Do not open shut-off valve (V3).

11.Allow water to flow out of the hose for 5 minutes to flush vinegar from the water heater.

12.Close service valve (V1) and open shut-off valve (V3).

13.Disconnect the hoses from the valve connections.

14.With (V4) closed, remove the in-line filter at the cold water inlet and clean out any residue. Place the filter back into unit and open (V4).

15.Restore power to the water heater and check operation.

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Bradford-White Corp TG-180E-N(X), TG-237E-N(X)A, TG-150E-N(X), TG237E-N(X), TG-199E-N(X) instruction manual
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TG-199E-N(X), TG237E-N(X), TG-180E-N(X), TG-150E-N(X), TG-237E-N(X)A specifications

Bradford White Corporation is renowned for its innovative solutions in the water heating and storage sector, offering a range of high-quality products designed for residential and commercial applications. Among its standout offerings are the TG series models, including TG-237E-N(X)A, TG-150E-N(X), TG-180E-N(X), TG-237E-N(X), and TG-199E-N(X). These models are specifically designed to maximize efficiency while providing reliable hot water delivery.

One key feature of the TG series is its high Energy Factor (EF) ratings, which signify exceptional energy efficiency. The models employ advanced technologies that not only reduce energy consumption but also minimize environmental impact. These products typically include a highly efficient burner system that enhances heat transfer, ensuring that users enjoy maximum hot water availability without incurring high utility costs.

Each model is crafted with robust materials, designed to withstand the rigors of everyday use. For example, the tanks are typically built from durable steel and feature an advanced glass lining that protects against corrosion and extends the lifespan of the unit. Additionally, these models are equipped with high-quality insulation that helps retain heat, further improving efficiency.

The TG series also emphasizes user convenience and safety. Many units come with a user-friendly control system that allows for easy temperature adjustments and monitoring. This is complemented by built-in safety features such as automatic shut-off capabilities, helping to prevent overheating or other potential hazards.

Another characterizing aspect of the TG series is its flexibility in installation. These water heaters are designed to fit various spaces and configurations, ensuring that they can meet the needs of different households or commercial facilities. Additionally, some models are compatible with both natural gas and propane, offering versatility in fuel options.

In terms of technology, these Bradford White water heaters include features such as electronic gas control systems that provide precise temperature management, and advanced airflow designs that optimize combustion efficiency. This focus on technology ensures that the TG series is not only reliable but also a smart choice for cost-conscious consumers looking to reduce their energy bills.

In summary, the Bradford White TG series, with models like TG-237E-N(X)A, TG-150E-N(X), TG-180E-N(X), TG-237E-N(X), and TG-199E-N(X), stands out for its robust design, efficiency, and advanced safety features. Whether for residential or commercial use, these hot water solutions continue to meet the evolving needs of consumers while prioritizing reliability and performance.
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