Bradford-White Corp EF60T125(E)*(N, X)(A)(2), EFR160T120*(EN, EF100T250(E)*(N Appendix a

Page 38

APPENDIX - A

Sensor Resistance at Various Temperatures

Be Careful When Making Voltage Measurements or Jumping Terminals

Not to Damage or Deform Connectors or Connector Pins.

Draw Water From The T&P Valve. Compare Temperature With

Temperature Ohms Chart Below.

Example: If temperature of sensor is 84°F, then the resistance through the sensor would be 8449 (see shaded area).

NOTE: Sensor resistance increases as the temperature falls.

In Degrees F

°F

0

1

2

3

4

5

6

7

8

9

40

26109

25400

24712

24045

23399

22771

22163

21573

21000

20445

50

19906

19383

18876

18383

17905

17440

16990

16553

16128

15715

60

15314

14925

14548

14180

13823

13477

13140

12812

12494

12185

70

11884

11592

11308

11032

10763

10502

10248

10000

9760

9526

80

9299

9078

8862

8653

8449

8250

8057

7869

7685

7507

90

7333

7165

7000

6839

6683

6531

6383

6238

6098

5961

100

5827

5697

5570

5446

5326

5208

5094

4982

4873

4767

110

4663

4562

4464

4368

4274

4183

4094

4006

3922

3839

120

3758

3679

3602

3527

3453

3382

3312

3244

3177

3112

130

3048

2986

2925

2866

2808

2752

2697

2643

2590

2538

140

2488

2439

2391

2344

2298

2253

2209

2166

2124

2083

150

2043

2004

1966

1928

1891

1856

1820

1786

1753

1720

160

1688

1656

1625

1595

1566

1537

1509

1481

1454

1427

170

1402

1376

1351

1327

1303

1280

1257

1235

1213

1191

180

1170

1150

1129

1110

1090

1071

1053

1035

1017

999

190

982

965

949

933

917

901

886

871

857

842

200

828

814

801

788

775

762

749

737

725

713

APPENDIX - B

Temperature Dial Resistance

Proper Readings Should Be 5400-6600 Ohms at Minimum

Setting

And 0-50 Ohms at Maximum.

Be Careful When Making Voltage Measurements or Jumping Terminals

Not to Damage or Deform Connectors or Connector Pins.

38

38

Image 38
Contents Service Manual Bradford White Page Page Page Dimensions Inches Page Page PVC, Cpvc For models prior to CF serial numbers Wiring Diagram Ignition Module For models starting with CF serial numbers and later Wiring Diagram Ignition Module Page CONNECTION/WIRING Diagram Harness to switch Replace switchRepair/replace wire Light burned outPressure Switch See Thermostat Circuit Only power light Is on and water heater Will not functionSwitch. see Exhaust Pressure Switch See Blower TestingSystem Observation For models with Direct Spark Ignition DisplayBlower. Is 110-120 VAC present? From previousReplace blower Section Combustion SystemPressing Select button will change display to next mode Max Setpoint value Water Heater Display Setpoint Display/Change Software Version Display only Max Setpoint continues to flash while making adjustments ExitingSELECTServiceSETMode To Display Flame Sense Current of the Pilot Flame Sensor Select SET Setpoint Idle Status Operational Idle Status Operational Error Codes and Error History Display To view previous error codes ExitingSELECTServiceSETMode Honeywell Integrated Control Error Code Resetting Error Codes in Hard Lockout Condition Unplug or disconnect electrical power to the water heater NextDo not operate water heater without Replace harness OK, thermostat is Calling for heatSee Thermostat Sensor See Thermostat PotentiometerAppendix a Red Wires Temperature Sensor Refer to ignition moduleThermostat Board Replacement Procedure Hot Surface Ignition Wiring DiagramThermostat Potentiometer Replacement Procedure Disconnected using a multi-meterThermostat Sensor Thermister Replacement Procedure Volt potential exposure. IsolateGas pressure. Is it stable Venturi Adjustment Inlet gas Pressure tapSupply piping Heater not running See illustrations at rightSee Ignition Module Clear obstructionLight? Minimum ¾ NPT. Schedule 40 black Iron PipeRecommended Refer to control board illustration Control BoardBurner mounting Screw Total Combustion System Removal ProcedureGas valve Wire harness Gas Connection PVC vent connectionCombustion System Replacement Procedure GasBurner Tube Removal Procedure Burner Tube Replacement Procedure Burner Tube InspectionGas Valve Replacement Procedure Is collector high limit switch Control board For Direct Spark Black wires atBlack wire leading to Black & White WiresBlower Replacement Procedure Is there continuity Through RED Only power LED is on, or Purge LED flashingReset button Refer to Check Collector Pressure See next See photo below Check Purge LED status On ignition moduleEF60,100T199 +2.58 EF100T150 +1.50 Check Collector PressureCheck exhaust collector pressure at the exhaust EF60T150,EF100T250 +1.22 EF60T125 +2.08 EF100T300 +0.55Exhaust pipe Pressure tap location Exhaust Pressure Switch Replacement ProcedureExhaust collector Reset button Switch operationError code 29 again? Support Energize?Vent tables Check Exhaust Tube PressureIs value negative or Pressure tap location Exhaust tube At bottom of heaterExhaust Tube Pressure tap location Check harness Connection from igniter To ignition module Hot surface Igniter Testing ProcedureCheck during igniter warm up period Hot surface Igniter Replacement Procedure ScrewsCheck continuity from tip of flame sensor N Flame Sensor Testing ProcedureGasket SensorFlame Sensor Replacement Procedure Spark Rod Gap Inspection and Adjustment Spark Rod Replacement Procedure Ignition Module Replacement Procedure Ignition Module Located on control panelIdentify wires for Step Disconnect harness P1 & P2 From ignition module Transformer Replacement ProcedureStep Pressure tap Call for technical support Does Blower Energize?Or more? Step Remove Mounting screws Intake Pressure Switch Replacement ProcedureStep Disconnect red wires System OK Reset button Button on highVent Safety Switch Replacement Procedure Disassembly Procedure for Access to Anodes & Flue Baffles Anode inspection and replacement Flue baffle inspection and replacement Powered Anode Replacement EF100T399 models only Collector Cover Installation Procedure Vent tables Gas Line Gas Pressure Venturi Spark GapModels prior to CF serial number Latch Assy Electronic Control Module For models with CF serial or later Combustion Surround Assy. specify Electronic Control Module For models with Direct Spark Ignition Honeywell Control Display 10C 11C 12C 13C BTU/H Page Page Parts@bradfordwhite.com Techserv@bradfordwhite.com

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.