Bradford-White Corp M-2-50T6DS Table of Contents , Introduction, Tools

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 - - -

Page 2

This service manual is designed to aid service and maintenance professionals on the function, proper diagnosis and repair of

Bradford Whitere sidential electricand light duty commercial electric water heaters.

The text and illustrations in this manual provide step by step instructions to facilitate proper operationand troubleshooting

procedures. Contact theBradford White TechnicalSupport Group immediately ifdiagnosis cannot be made using the

methods described inthis service manual.

Introduction

Residential and Light Duty

Commercial Electric Water Heaters

Tools

- MultiMe ter. - Phillips Head ScrewD river.

- 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.