Bradford White UPDX2-75T6FRN - Manual (Page 2)

Bradford White
UPDX Series
Ultra Low NOx Power Direct Vent Gas Water
Heaters
Table of Contents
PageUPDX 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 16 I
Pilot Testing, Cleaning and Replacement 18 II
Pressure Switch Testing and Replacement 19 III
Blower Testing and Replacement 21 IV
Blower Temperature Switch Testing and Replacement 23 V
Gas Control & Thermal Well Testing & Replacement 25 VI
- Brass Well (WV4460) to Brass Well (WV4460)
(Models with serial number starting “J” or earlier)
Gas Control Replacement 29 VII
- Brass Well (WV4460) to Polymer Well (WV4462)
(Models with serial number starting “J” or earlier)
Gas Control Testing and Replacement 31 VIII
- Polymer Well (WV4462) to Polymer
Well (WV4462)
(Models with serial number starting “K” or later)
Flammable Vapor Sensor Testing & Replacement 32 IX
Safety Circuit Voltage Trace 33 X
115VAC Circuit Trace 34 XI
Dip Tube Inspection and Replacement 35 XII
Anode Inspection and Replacement 36 XIII
Flue Baffle Inspection and Replacement 39 XIV
Inner Door Removal, Inspection & Replacement 40 XV
Glossary of Terms 42 - - -
Parts List 43 - - -
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