RESIDENTIAL GAS AND ELECTRIC WATER HEATER

SERVICE HANDBOOK

Residential Electric – continued

CERTIFICATION AND APPROVALS

UL – UL-174 applies to Residential Electric Water Heaters

The following paragraph describes the relationship between ASHRAE, NAECA and the Department of Energy’s ENERGY FACTOR as it relates to the residential electric product lime. All of the A.O. Smith residential electric water heaters meet this code.

The American Society of Heating, Refrigeration and Air Conditioning Engineer (ASHRAE) guidelines follow the National Appliance Energy Conservationist Act (NAECA). NAECA follows the Department of Energy (DOE) test procedures of the 1990 code of federal regulation, title 10, part 430 (64) which establishes minimum Energy Factors (EF) for water heaters of 12 kilowatts or less and a storage capacity of at least 20, but not more than 120 gallons.

Formula -The minimum EF allowed = .93 - .00132 x V (volume of storage)

Example (EES-52; 50 gal. x .00132 = .066 Then .93 - .066 = .854 minimum allowable energy factor).

A.O. Smith Water Products Company

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Training Department

©2002

Ashland City, Tennessee

 

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A.O. Smith TC-049-R2 manual Certification and Approvals

TC-049-R2 specifications

The A.O. Smith TC-049-R2 is a highly efficient and reliable water heater designed to meet the needs of both residential and light commercial applications. This gas-fired water heater offers a perfect blend of performance, efficiency, and durability, making it a popular choice among homeowners and business owners alike.

One of the standout features of the A.O. Smith TC-049-R2 is its tankless design. Unlike traditional water heaters with storage tanks, the TC-049-R2 heats water on demand, which means you only use energy when you need hot water. This not only results in lower energy bills but also provides an endless supply of hot water, ideal for households with multiple bathrooms or high hot water demands.

The TC-049-R2 is powered by natural gas, which enhances its efficiency and operating costs. With an impressive energy factor, this water heater is designed to conserve energy without compromising on performance. The unit also boasts a high recovery rate, which means it can quickly replenish hot water, ensuring you’re never left waiting.

Another notable technology in the A.O. Smith TC-049-R2 is its advanced electronic ignition system, which provides reliable start-up and reduces the chance of pilot light issues. Additionally, the unit features a scaled-down footprint, making it suitable for installation in tighter spaces, such as closets or utility rooms, without sacrificing performance.

Durability is a key characteristic of the TC-049-R2, as it is constructed with high-quality materials designed to resist corrosion and withstand typical wear and tear. The unit is equipped with a durable heat exchanger that enhances both efficiency and longevity, ensuring many years of reliable service.

Safety features are also prioritized in the A.O. Smith TC-049-R2. It comes equipped with advanced safety controls that prevent overheating and ensure safe operation. This offers peace of mind for users, knowing that the unit has multiple safeguards in place.

Overall, the A.O. Smith TC-049-R2 is an excellent choice for those seeking an efficient, reliable, and safe water heating solution. Its combination of advanced features, innovative technology, and robust construction makes it a leader in the water heater market, providing convenience and comfort to its users for years to come.