Step 6
Remove transformer
mounting screws

Transformer Replacement Procedure

Step 1. Position main power switch to “OFF”.

Step 2. Disconnect (Unplug) water heater from 120 Volt power source.

Step 3. Un-latch & remove surround cover from top of water heater.

WARNING

120 volt potential exposure. Isolate the

appliance and reconfirm power is disconnected using a multi-meter.

Step 4. For Hot Surface Ignition models, refer to ignition module illustration below, Disconnect wire harness P1 labeled “PRIMARY” and P2 labeled “SECONDARY” from ignition module.

Step 5. For Hot Surface Ignition models, Disconnect secondary leads (blue & yellow wire) from thermostat board. Note the blue wire is connected to

24 volt “HOT” terminal. (see photo below) For Direct Spark Ignition models, Disconnect primary leads (black & white) and secondary leads (blue & yellow) from the transformer. (leads are different sizes to prevent interchanging)

Step 5

Disconnect blue & yellow wire from thermostat board. Note blue wire is connected to 24 volt “HOT” terminal.

Thermostat board

Step 3

Disconnect harness

“P1” & “P2”

from ignition module

Ignition module

Step 6. Remove the 2 screws ( short Phillips screw driver) holding the transformer in place and remove transformer from control panel. (see photo below)

Step 7. Install new transformer and secure in place with screws from step 6.

Step 8. For Hot Surface Ignition models, Reconnect wire harness P1 & P2, connections are non-interchangeable to insure proper reconnection.

For Direct Spark Ignition models,

Reconnect primary and secondary wires to transformer. (leads are different sizes to prevent interchanging)

Step 9. For Hot Surface Ignition models, Reconnect blue & yellow wire leading from the P2 connection on ignition module to

thermostat board. Note the blue wire must connect to the 24 volt “HOT” terminal. (see photo at right)

Step 10. Restore 120 volt power supply to water heater and confirm proper operation following the lighting instructions on the lighting instruction label or the lighting instruction located in the installation and operating instruction manual.

Step 11. Replace surround cover on top of water heater.

Thermostat

board

24 volt common,

yellow wire connection

24 volt Hot,

blue wire connection

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Image 68
Bradford-White Corp EF60T125(E)*(N, X)(A)(2), EFR160T120*(EN, EF100T250(E)*(N Transformer Replacement Procedure, Step
Page 67 Page 69

EFR160T120*(EN, EF100T250(E)*(N, EF100T399(E)*(N, EF100T300(E)*(N, EF60T125(E)*(N specifications

Bradford-White Corporation is a leading manufacturer of water heating solutions, known for its high-quality and durable products. Among its extensive product lineup, the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N) models stand out for their impressive features and technologies that cater to both residential and commercial water heating needs.

The EF60T150(E)*(N) model is designed for medium to large households, providing a reliable hot water supply. It features a 60-gallon tank with a first-hour delivery rate that ensures ample hot water, making it ideal for simultaneous usage in multiple applications. This water heater operates on natural gas, boasting high energy efficiency ratings due to its advanced burner technology. The environmentally friendly design reduces greenhouse gas emissions while delivering consistent performance.

Similarly, the EF100T150(E)*(N) model provides an even larger capacity of 100 gallons, addressing the hot water demands of larger families or commercial establishments. It employs Bradford-White's Hydrojet Total Performance System, which minimizes sediment buildup and optimizes hot water output. This model also features a patented Vitraglas lining that protects the tank from corrosion, extending its lifespan and enhancing reliability.

On the other hand, the EF60T199(E)*(N,X)(A)(2) and EF100T199(E)*(N) models offer advanced technology with their unique "N" designation, indicating that they are equipped to handle more extensive heating requirements efficiently. The EF60T199 model, with its 60-gallon capacity, and the EF100T199, with 100 gallons, incorporate enhanced insulation to reduce heat loss and improve energy efficiency. Both models are designed for easy installation and maintenance, making them user-friendly for both homeowners and technicians.

Additionally, these water heaters feature advanced electronic ignition and controls that allow for precise temperature regulation and easy monitoring. The intuitive user interface simplifies operation, while built-in safety features ensure reliable and secure hot water delivery.

Overall, Bradford-White's EF series of water heaters, including the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N), exemplify the company's commitment to quality and innovation. With their robust performance, energy efficiency, and advanced technologies, these models offer dependable hot water solutions tailored to meet the diverse needs of today's consumers. Whether for residential or commercial use, Bradford-White continues to set the standard for excellence in water heating technology.
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