A.O. Smith ATO-340H-P Technical Documents | Page 2

A.O. Smith Water Heater Technical Documents - ATO-340H-P.
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CONTENTS
Installation Manual
 SPECIFICATIONS .......................................................................................................................... 4

 INTRODUCTION .......................................................................................................................... 5

 SAFETY GUIDELINES .................................................................................................................... 6

 INSTALLATION ............................................................................................................................. 7

  General.....................................................................................................................................7

  Clearances................................................................................................................................9

  Included accessories................................................................................................................9

  Optional items........................................................................................................................9

  Warning for installations........................................................................................................11

  High-altitude installations......................................................................................................12

  Ventinginstructions...............................................................................................................13

  Gas supply and gas pipe sizing...............................................................................................23

  Water connections................................................................................................................25

  Condensate drain..................................................................................................................26

  Electrical connections............................................................................................................28

  Temperature remote controller............................................................................................29

  Easy-Link System....................................................................................................................32

  Multi-Unit System.................................................................................................................36

 APPLICATIONS............................................................................................................................37

 INITIALOPERATION...................................................................................................................39

Owner's Guide
 OPERATINGSAFETY .................................................................................................................. 41

 NORMALOPERATION ............................................................................................................... 43

  TemperaturecontrollerandRemotecontroller.....................................................................43

  General...................................................................................................................................43

  Temperature settings.............................................................................................................44

  Temperature table of controller.............................................................................................44

  Additional features.................................................................................................................45

  Temperature settings on the PCB (Without remote controller)............................................46

  Flow.......................................................................................................................................47

  Freeze protection system.......................................................................................................47

  Maintenance and service.......................................................................................................48

  Unit draining and filter cleaning...........................................................................................48

 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

  General...................................................................................................................................49

  Error codes............................................................................................................................51

 COMPONENTSDIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

 PARTSLIST.................................................................................................................................58

 OUTPUTTEMPERATURECHART................................................................................................61

 LIMITEDWARRANTY..................................................................................................................62

Contents

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