Bradford White U4TW50T*FRN Manuals

Manuals and User Guides for Bradford White U4TW50T*FRN. We have 1 Bradford White U4TW50T*FRN manual available for free PDF download: Service Manual

Bradford White U4TW50T*FRN Service Manual

Bradford White U4TW50T*FRN Service Manual (52 pages)

Residential Ultra Low NOx Gas Water Heaters

Brand: Bradford White | Category: Water Heater | Size: 2 MB

Table of Contents

Table of Contents
2
Introduction
5
How to Use this Manual
6
Tools Required for Service
7
Specifications
8
- Vent Tables
  9
- Control Timings
  11
- Wiring Diagram
  11
Sequence of Operation
12
- Power up Sequence
  12
- Normal Heating Sequence
  12
- Abnormal Operation
  13
Troubleshooting
17
Burner Maintenance
20
- Burner Inspection
  20
- Burner Cleaning Procedure
  20
Pilot Maintenance
22
- Pilot Inspection Testing and Replacement
  25
Pressure Switch Testing and Replacement
25
Blower Testing and Replacement
28
Vent System
30
Blower Temperature Switch Testing and Replacement
31
Thermal Well Testing
34
Determine Water Temperature Inside Tank
35
Component Disassembly
36
Gas Control and Thermal Well Testing and Replacement
36
- Gas Control Removal
  37
- Gas Control Assembly
  38
Flammable Vapor Sensor Testing and Replacement
40
115 VAC Circuit Trace
40
Vac Circuit Trace
41
Safety Circuit Voltage Trace
42
Blower Removal
43
Flue Baffle Inspection and Replacement
43
Diptube Inspection and Replacement
44
Anode Inspection and Replacement
45
Inner Door Removal, Inspection and Replacement
46
Inner Door Gasket Replacement
47
Inner Door Installation
48
Screenlok ® Flame Arrestor Cleaning
49
Common Terms
50
Notes
50
Parts List
51

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