RESIDENTIAL GAS AND ELECTRIC WATER HEATER

SERVICE HANDBOOK

Residential Electric – continued

A-6 service – continued

Testing with the Multimeter

Probes installed to test for "voltage - (black test lead is “common".)

Dial set to AC - Voltage scale - set dial to highest voltage scale or scale above the expected voltage. Do not set the meter to a scale below the voltage expected.

Complaint:

No hot water

 

Test Conditions:

 

 

Tank is full of cold water.

 

 

Power is "on" to the heater

 

 

 

Voltage Check

Test between 1 and 3 or L1 and L3

 

If …

 

… then

correct supply voltage is present

continue.

 

 

correct supply voltage is NOT present

check disconnect breaker.

 

 

check wiring to the heater.

 

 

Test between 2 and 4 or L1 and L4

 

If …

 

… then

correct supply voltage is present

continue

 

 

correct supply voltage is NOT present,

push Manual Reset - if power is now supplied,

 

 

conduct thermostat and element checks.

still no power

 

replace High Limit (High Limit/Thermostat on

 

 

89T)

 

 

 

A.O. Smith Water Products Company

36

Training Department

©2002

Ashland City, Tennessee

 

Page 37
Image 37
A.O. Smith TC-049-R2 manual Testing with the Multimeter, Complaint No hot water Test Conditions, Voltage Check

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.