用户手册 — Bradford-White Corp U2TW50T*FRN

目录

• Introduction

  5
• How to Use this Manual

  6
• Tools Required for Service

  7
• Specifications

  8
• Sequence of Operation

  12
• Troubleshooting

  17
• Burner Maintenance

  20
• Pilot Maintenance

  22
• Pressure Switch Testing and Replacement

  25
• Blower Testing and Replacement

  28
• Blower Temperature Switch Testing and Replacement

  31
• Thermal Well Testing

  34
• Determine Water Temperature Inside Tank

  35
• Gas Control and Thermal Well Testing and Replacement

  36
• Flammable Vapor Sensor Testing and Replacement

  40
• 115 VAC Circuit Trace

  40
• Safety Circuit Voltage Trace

  42
• 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