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 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-199I-N(X), TG237I-N(X), TG-150I-N(X), TG-180I-N(X), TG-237I-N(X)A instruction manual
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TG-199I-N(X), TG-237I-N(X)A, TG-150I-N(X), TG237I-N(X), TG-180I-N(X) specifications

Bradford White Corp, a leader in water heating, offers a range of innovative water heaters, including the TG-180I-N(X), TG-237I-N(X), TG-150I-N(X), TG-237I-N(X)A, and TG-199I-N(X) models. These units are designed to deliver energy-efficient performance while ensuring reliability and ease of use for both residential and commercial applications.

One of the main features of the TG series is their robust design, which is built to withstand the rigors of daily use. These models are equipped with a durable steel tank that is glass-lined to prevent corrosion, ensuring a longer lifespan and reduced maintenance needs. The insulation system utilized in these water heaters is designed to minimize heat loss, contributing to overall energy efficiency.

In terms of technology, the TG series utilizes advanced gas burner systems that ensure optimal heating performance. The models feature an atmospheric venting system that is simple to install and maintain, offering great flexibility in terms of placement within a building. Additionally, the inclusion of Bradford White's signature Hydrojet® Total Performance System enhances overall efficiency by reducing sediment buildup, allowing for better heat transfer and increased performance.

Each model in this range is designed with user-friendly controls. The intuitive thermostat settings enable users to easily adjust the water temperature to meet their specific needs. Moreover, these water heaters incorporate safety features such as high-temperature limit switches and a temperature and pressure relief valve, ensuring safe operation.

Another important characteristic of these models is their compliance with industry standards. The TG series meets or exceeds the stringent guidelines set forth by the American National Standards Institute (ANSI) and the National Sanitation Foundation (NSF), demonstrating Bradford White's commitment to quality and safety.

Moreover, the TG series is designed to be environmentally friendly, incorporating features that support lower emissions and energy consumption. By using high-efficiency burners and improved insulation, these models contribute to reduced greenhouse gas emissions, aligning with global sustainability goals.

In summary, the Bradford White Corp TG-180I-N(X), TG-237I-N(X), TG-150I-N(X), TG-237I-N(X)A, and TG-199I-N(X) water heaters are engineered for efficiency, durability, and safety. With advanced features and technologies, they provide reliable hot water solutions for a variety of settings, making them an excellent choice for consumers seeking high-quality water heating options.
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