A.O. Smith BT- 80

A.O. SMITH WATER PRODUCTS COMPANY

500 Tennessee Waltz Parkway • Ashland City, TN 37015

PHONE: 1-800-527-1953

www.aosmithwaterheaters.com • E-MAIL: parts@hotwater.com

Contents

Main MODELS BT- 80 AND 100 300/301 SERIES COMMERCIAL GAS WATER HEATER Glass-Lined Tank-Type Water Heater INSTALLATION OPERATION SERVICE MAINTENANCE LIMITED WARRANTY FOREWORD ROUGH-IN DIMENSIONS GENERAL SAFETY INFORMATION PRECAUTIONS CHEMICAL VAPOR CORROSION TABLE OF CONTENTS IMPROPER COMBUSTION LIQUID PETROLEUM MODELS EXTENDED NON-USE PERIODS INSULATION BLANKETS INSTALLATION INSTRUCTIONS REQUIRED ABILITY GENERAL LOCATING THE HEATER HIGH ALTITUDE INSTALLA TIONS CLEARANCES HARD WATER AIR REQUIREMENTS WATER (POT ABLE) HEATING AND SPACE HEATING VENTING THERMOMETERS (Not Supplied) RELIEF VALVE GAS PIPING GAS PRESSURE REGULATOR OPERATION TO OPERATE THE W ATER HEATER PURGING Page FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or LIGHTING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCE CHECK VENTING TEMPERATURE REGULATION HIGH TEMPERATURE LIMIT SWITCH (Auto Reset Type Energy Cut Off) SERVICE INFORMATION PILOT AND MAIN BURNER CHECKING GAS INPUT VENT SYSTEM RELIEF VALVE HOT WATER ODOR ANODE ROD INSPECTION WINTER PROTECTION PREVENTIVE MAINTENANCE RECOMMENDED PROCEDURE FOR PERIODIC REMOVAL OF LIME DEPOSITS FROM TANK TYPE COMMERCIAL WATER HEA TERS DELIMING SOLVENTS TANK CLEANOUT PROCEDURE CHECKLIST Page Model BT Limited Warranty