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Bradford White
PDX Series
Powered Direct Vent Gas Water Heaters
Table of Contents
Page TTW Service Procedure
Introduction 4 - - -
How to use this manual 5 - - -
Tool required for service 5 - - -
Specifications 6 - - -
Control Timings 8 - - -
Sequence of Operation 9 - - -
Troubleshooting 12 - - -
Burner Inspection, Cleaning and Replacement 14 I
Pilot Testing, Cleaning and Replacement 16 II
Pressure Switch Testing and Replacement 17 III
Blower Testing and Replacement 21 IV
Blower Temperature Switch Testing and Replacement 23 V
Gas Control & Thermal well Testing & Replacement 25 VI
Flammable Vapor Sensor Testing & Replacement 29 VII
Safety Circuit Voltage Trace 30 VIII
115VAC Circuit Trace 31 IX
Dip Tube inspection and Replacement 32 X
Anode Inspection and Replacement 33 XI
Flue Baffle Inspection and Replacement 34 XII
Inner Door Removal, Inspection & Replacement 35 XIII
Glossary of Terms 38 - - -
Parts List 39 - - -
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