General Safety Information | A.O. Smith BTN 120 THRU 400/A Series

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A.O. Smith BTN 120 THRU 400/A Series General Safety Information, Precautions, Grounding Instructions, Improper Combustion

Contents

MODELS BTN 120 THRU 400/A Series INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTYCOMMERCIAL GAS, GLASS-LINED, TANK-TYPE WATER HEATER ROUGH-IN-DIMENSIONS TABLE 1. ROUGH-IN-DIMENSIONSTABLE 3. GASAND ELECTRICAL CHARACTERISTICS FRONT VIEW TABLE OF CONTENTS FOREWORD GENERAL SAFETY INFORMATION PRECAUTIONSGROUNDING INSTRUCTIONS CHEMICAL VAPOR CORROSION FEATURES HIGH ALTITUDE INSTALLATIONSHIGH LIMIT SWITCH ELECTRONIC IGNITION CONTROL CIRCULATING PUMP DISHWASHING MACHINE REQUIREMENTUNCRATING LOCATING THE HEATER LEVELING CLEARANCESHARD WATER AIR REQUIREMENTS VENTING MULTIPLE HEATER MANIFOLDUNCONFINED SPACE CONFINED SPACE TABLE 6. TECHNICAL DATA VENTING TYPE B GAS VENT Multiple Gas Fired Tank-Type Heaters TABLE 6. TECHNICAL DATA VENTING Continued WATER LINE CONNECTIONS WATER POTABLE HEATING AND SPACE HEATING See pagesTHERMOMETERS Not Supplied RELIEF VALVE INSTALLATION DIAGRAMS-TOP INLET/OUTLET USAGE GENERALCODE RESTRICTIONS DANGER VERTICAL STORAGE TANK AND FORCED CIRCULATION HORIZONTAL STORAGE TANK AND FORCED CIRCULATIONTEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES. SEE WATER TEMPERATURE CONTROL TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE STORAGE WITH RECIRCULATION OF SANITIZING LOOP TWO TEMPERATURE - TWO HEATERS, ONE PRE-HEATER/ONE - BOOSTER HEATER INSTALLATION DIAGRAMS-SIDE INLET/OUTLET USAGEWITH OR WITHOUT BUILDING RECIRCULATION ONE OR TWO TEMPERATURE - ONE HEATERS,HIGH TEMPERATURE STORAGE WITH OR WITHOUT RECIRCULATIONHEATER WITH OR WITHOUT MIXING VALVE HEATER WITH MIXING VALVE AND RECIRCULATED SANITIZING LOOP TWO TEMPERATURE - TWO PRE-HEATERS WITH MIXING VALVE OR BOOSTER HEATER WITH OR WITHOUT BUILING RECIRCULATIONTWO PRE-HEATERS WITH MIXING VALVE TWO PRE-HEATERS WITH BOOSTER HEATER MEDIUM TEMPERATURE - ONE HEATER WITH AUXILIARY STORAGE TANK FORCED CIRCULATION WITH OR WITHOUT BUILDING RECIRCULATIONVERTICAL STORAGE TANK HORIZONTAL STORAGE TANK MANIFOLD KITS TWO UNIT MANIFOLD KITTHREE UNIT MANIFOLD KIT FOUR UNIT MANIFOLD KIT HEATER WIRING FIGURE 9 - SINGLE UNIT WIRING DIAGRAM BTN-120 THROUGH 400A GAS PIPING GAS PRESSURE REGULATORTABLE 7 - GAS SUPPLY LINE SIZES IN INCHES MAXIMUM CAPACITY OF PIPE IN CUBIC FEET PER HOUR OPERATION MANIFOLD GAS PRESSURE IN INCHES OF WATER COLUMN ALL MODELSAPPROXIMATE TIME REQUIRED TO CONSUME 1 CU. FT. OF GAS AT FULL CAPACITY SEQUENCE OF OPERATION LIGHTING AND OPERATION INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGOPERATING INSTRUCTIONS PREVENTIVE MAINTENANCE CHECK THE IGNITOR ASSEMBLYIGNITOR ASSEMBLY WATER TEMPERATURE CONTROL MAIN BURNER GAS VALVESCHECKING THE INPUT FIGURE 11, IGNITOR VENTING SYSTEM REMOTE STORAGE TANK TEMPERATURE CONTROLHOT WATER ODOR ANODE ROD INSPECTION RECOMMENDED PROCEDURE FOR TANK CLEANOUT PROCEDUREDELIMING SOLVENTS DELIMING USING FLO-JUG METHOD SERVICE SYSTEM DIAGNOSTICSIGNITION MODULE SYSTEM ELECTRICAL SERVICING SEQUENCE OF OPERATION FLOW CHART REPLACEMENT PARTS, SERVICE HANDBOOKS AND TRAINING AIDSREPLACEMENT PARTS OPERATIONAL CHECKLIST SERVICEMANREMEDY COMPLAINT Model BTN Limited Warranty 4. SERVICEANDREPAIREXPENSES6. CLAIMPROCEDURE KEEPTHISWARRANTYPOSTEDADJACENTTOTHEHEATERFORFUTUREREFERENCE

A.O. Smith BTN 120 THRU 400/A Series General Safety Information, Precautions, Improper Combustion

Models: BTN 120 THRU 400/A Series