A.O. Smith BTX-80 SERIES 100

500 Tennessee Waltz Parkway, Ashland City, TN 37015

TechnicalSupport:800-527-1953•Parts:800-433-2545•Fax:800-644-9306

www.hotwater.com

Contents

Main Instruction Manual power vented Gas Models w/hot surface IGnItIon Model BtX-80 serIes 100 for Your safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER. safe InstallatIon, use and servIce DANGER WARNING CAUTION CAUTION IMportant defInItIons Page Page IntroductIon qualIfIed Installer or servIce aGencY preparInG for the InstallatIon taBle of contents InstallatIon requIreMents for the coMMonwealth of Massachusetts coMMonwealth of Massachusetts InstallatIon of carBon MonoXIde detectors approved carBon MonoXIde detectors sIGnaGe tYpIcal InstallatIon Get to Know Your water heater - Gas Models replaceMent parts and delIMInG products Page tYpIcal InstallatIon MIXInG valve / therMal eXpansIon tanK usaGe and space heatInG MIXInG valves fIGure 3 DANGER rouGh-In-dIMensIons facts to consIder aBout the locatIon locatInG the new water heater InsulatIon BlanKets aIr requIreMents unconfIned space unusuallY tIGht constructIon confIned space dIrect vent applIances eXhaust fans outdoor aIr throuGh two horIZontal ducts outdoor aIr throuGh two vertIcal ducts aIr froM other Indoor spaces fIGure 9a. InstallInG the new water heater space heatInG and potaBle water sYsteM DANGER closed water sYsteMs cheMIcal vapor corrosIon Explosion Hazard CAUTION Water Damage Hazard pipe must terminate at adequate drain. t&p valve discharge pipe requirements: sedIMent traps fIllInG the water heater vent pIpe asseMBlY ventInG terMInatIon clearances sIdewall power vent A E V X v v G CBB F fIGure 16. Blower asseMBlY InstallatIon InstallatIon of vent sYsteM vent terMInal InstallatIon, sIdewall Page InstallatIon of vent sYsteM, sIdewall InstallatIon of vertIcal vent sYsteM vent attenuatIon asseMBlY InstallatIon InstructIons vent attenuatIon asseMBlY KIt parts lIst vent attenuatIon asseMBlY InstallatIon Analyze entire vent system to make sure that condensate Page vent pIpe preparatIon recoMMended Brush* sIZe for prIMer and ceMent applIcatIons Page for Your safetY read Before operatInG warnInG: If you do not follow these instructions exactly, a re or to turn off Gas to applIance operatInG InstructIons teMperature reGulatIon for Your InforMatIon start up condItIons operatIonal condItIons ventInG sYsteM InspectIon Burner operatIon and InspectIon perIodIc MaIntenance Burner cleanInG houseKeepInG teMperature-pressure relIef valve test DANGER valve discharge. Pressure Relief Valve discharge outlet. Figure 28. DANGER leaKaGe checKpoInts servIce # led status water heater control PROBLEMSOLUTION # LED STATUS WATERHEATER CONTROL PROBLEMSOLUTION # LED STATUS WATER HEATER CONTROL Page limited warranty