A.O. Smith warranty Models BTI 120 Thru 400/A

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MODELS BTI 120 THRU 400/A

COMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER

•INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTY

Thank you for buying this energy efficient water heater from A.O. Smith Water Products Company. We appreciate your confidence in our products.

CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS

INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ

THOROUGHLY BEFORE INSTALLING AND USING THIS

APPLIANCE.

A DIVISION OF A. O. SMITH CORPORATION

McBEE, SOUTH CAROLINA, USA

www.hotwater.com

PLACETHESEINSTRUCTIONSADJACENTTOHEATER

ANDNOTIFYOWNERTOKEEPFORFUTUREREFERENCE.

	PART NO. 195809-000
Printed in U.S.A. 0803	SUPERSEDES PARTNO.194780-000

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Contents

Commercial GAS, GLASS-LINED, TANK-TYPE Water Heater Models BTI 120 Thru 400/AFront View TOP View Back View ROUGH-IN-DIMENSIONS ROUGH-IN-DIMENSIONSGasand Electrical Characteristics Foreword Table of ContentsGeneral Safety Information High Altitude Installations FeaturesHigh Limit Switch Exhaust Inducer Blower Assy Electronic Ignition ControlCirculating Pump Dishwashing Machine RequirementClearances LevelingHard Water AIR RequirementsMultiple Heater Manifold VentingModel BTI-120 Type B GAS VentModel BTI-154 Model BTI-275 Model BTI-250Model BTI-310 Water Potable Heating and Space Water Line ConnectionsGAS Piping System ConnectionsGAS Pressure Regulator GAS Piping and Dirt LEG InstallationGAS Meter Size Natural Gases only Type of GASSingle Unit Wiring Diagram BTI-120 Through 400A Heater WiringTube Inlet Installation Installation DIAGRAMS-TOP INLET/OUTLET UsageGeneral Code RestrictionsHorizontal Storage Tank and Forced Circulation Vertical Storage Tank and Forced CirculationPage Circulating Return Line Connection Installation DIAGRAMS-SIDE INLET/OUTLET UsageHeater with Mixing Valve and Recirculated Sanitizing Loop TWO PRE-HEATERS with Booster Heater Horizontal Storage Tank Manifold Kits Model Dimension aOperation Sequence of Operation What to do if YOU Smell GAS For Your Safety Read Before OperatingWater Temperature Control Preventive MaintenanceCheck the Ignitor Assembly Ignitor AssemblyGAS Valves Remote Storage Tank Temperature ControlChecking the Input Venting SystemAnode ROD Inspection HOT Water OdorFlushing DrainingDeliming Using FLO-JUG Method Tank Cleanout ProcedureDeliming Solvents Replacement Parts ServiceSystem Diagnostics Ignition Module SystemYES Sequence of Operation Flow ChartComplaint Cause User Serviceman Operational ChecklistRemedy Claim Procedure Service and Repair ExpensesKeepthiswarrantypostedadjacenttotheheaterforfuturereference Tank