Bradford White DB-80R3DS - Manual (Page 2)

Table of Contents
Page Service Procedure
Introduction ………………………………………………………………………. 2
Tools……………………………………………………………………………… 2
General Information ……………………………………………………………… 3
- - -
Sequence of Operation …………………………………………………………… 6 - - -
Single Element Operation ……………………………………................... 6 - - -
Double Element, Non-Simultaneous, Single Phase………………………. 7 - - -
Double Element, Simultaneous, Single Phase, 4 wire Service …............... 8 - - -
Double Element, Non-Simultaneous, 3 Phase ………................................ 9 - - -
Double Element, Simultaneous, 3 Phase ………………………………… 10 - - -
Double Element, Non-Simultaneous, Single Phase, Off Peak …………... 11 - - -
Troubleshooting …………………………………………………………………. 12 - - -
Line Voltage and High Limit ECO Testing……………………………………… 14 RE-I
Heating Element Testing ……………................................................................... 15 RE-II
Residential Thermostat Testing ……..................................................................... 16 RE-III
Single Element ……………………………............................................... 16
Double Element, 4 wire, Simultaneous, Single Phase …………………... 16
Double Element, Non-Simultaneous, Single Phase ………....................... 17
Double Element, Non-Simultaneous, 3 Phase …………………………... 19
Double Element, Simultaneous, 3 Phase ………………………………... 21
Double Element, Non-Simultaneous, Single Phase, Off Peak ………….. 23
Light Duty Commercial Thermostat Testing …..................................................... 25 RE IV
Double Element, Non-Simultaneous, Single Phase ……………………... 25
Double Element, Simultaneous, Single Phase …………………………... 27
Double Element, Non-Simultaneous, 3 Phase …………………………... 29
Double Element, Simultaneous, 3 Phase ………………………………... 31
Thermostat Removal and Replacement …………………………………………. 33 RE-V
Heating Element Removal and Replacement ……………………………………. 34 RE-VI
Dip Tube and Anode Inspection and Replacement ……………………………… 35 RE-VII
Generic Parts List ………………………………………………………………... 36 - - -
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This service manual is designed to aid service and maintenance professionals on the function, proper diagnosis and repair of
Bradford White residential electric and light duty commercial electric water heaters.
The text and illustrations in this manual provide step by step instructions to facilitate proper operation and troubleshooting
procedures. Contact the Bradford White Technical Support Group immediately if diagnosis can not be made using the
methods described in this service manual.
Introduction
Residential and Light Duty
Commercial Electric Water Heaters
Tools
- Multi Meter. - Phillips Head Screw Driver.
- 1-½ Deep Well Socket (element removal). - Thermometer.
- ¼" Nut Driver. - Drain Hose.
- Various Hand Tools: Pipe Wrench, Channel Locks, Pliers (common & needle nose), Wire cutters, Wire Strippers,
Flash Light.
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