RESIDENTIAL GAS AND ELECTRIC WATER HEATER

SERVICE HANDBOOK

Residential Electric – continued

C-2 – service continued

Complaint:

No Hot Water

Conditions:

Tank water cold

Power on

Procedure:

Multimeter set for

AC voltage check

 

 

Voltage Checks

 

 

 

Test voltage between 1 and 3 or L1 and L3 of high limit.

 

 

 

If …

 

… then

 

 

 

rated voltage is not present

 

check circuit breaker (fused disconnect)

 

 

 

 

check wire connections in heater junction

 

 

 

 

box

 

 

 

 

 

check position of heater ON/OFF switch-if

 

 

 

 

applicable.

 

 

 

rated voltage is present

 

continue to next step.

 

 

 

Test voltage between 2 and 4 or L1 and L4 of high limit

 

 

 

If …

 

… then

 

 

 

rated voltage is not present

 

press high limit reset button

 

 

 

 

replace high limit (after conducting

 

 

 

 

thermostat check)

 

 

 

 

 

 

 

 

 

rated voltage is present

 

continue to next step.

 

 

 

Test voltage between 4 and 2 or T2 and L4

 

 

 

If …

 

… then

 

 

 

rated voltage is not present

 

check jumper between high limit 2 and

 

 

 

 

thermostat 1or

 

 

 

 

 

on T2, L4 test-replace control.

 

 

rated voltage is present

 

continue to next step.

 

 

 

 

 

 

 

 

 

A.O. Smith Water Products Company

32

Training Department

 

©2002

Ashland City, Tennessee

 

 

 

Page 33
Image 33
A.O. Smith TC-049-R2 Complaint No Hot Water Conditions, Procedure, Test voltage between 4 and 2 or T2 and L4 If … … then

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.

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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.