A.O. Smith 650A, 740A, BTP(V)-540A warranty

MODELS BTP(V)-540A, 650A AND 740A

COMMERCIAL GAS, GLASS-LINED, TANK-TYPE LOW NOx

WATER HEATER

CONSERCONSER

CONSERVV

VAA

ATIONISTTIONIST

TIONISTTIONIST

TIONIST®®

®®

PART NO. 195033-000

CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS IN-

FORMATION RELATIVE TO YOUR SAFETY. PLEASE

READ THOROUGHLY BEFORE INSTALLING AND USING

THIS APPLIANCE.

A DIVISION OF A.O.SMITH CORPORATION

MCBEE, SOUTH CAROLINA

www.aosmithwaterheaters.com

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND

NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.

• INSTALLATION • OPERATION • MAINTENANCE • LIMITED WARRANTY

PRINTED IN U.S.A. 1004

Contents

Main MODELS BTP(V)-540A, 650A AND 740A FOREWORD ROUGH-IN DIMENSIONS CHEMICAL VAPOR CORROSION GENERAL SAFETY INFORMATION PRECAUTIONS LIQUID PETROLEUM MODELS TABLE OF CONTENTS IMPROPER COMBUSTION EXTENDED NON-USE PERIODS CATHODIC PROTECTION INSULATION BLANKETS HIGH ALTITUDE INSTALLATIONS FEATURES INSTALLATION INSTRUCTIONS REQUIRED ABILITY UNCRATING LOCATING THE HEATER HARD WATER CLEARANCES AIR REQUIREMENTS VENTING VERTICAL VENTING - FOR BTP MODELS HORIZONTAL (SIDE-WALL) VENTING - FOR BTPV MODELS IMPORTANT DIRECT VENTING - FOR BTPV MODELS Page GAS PIPING GAS METER SIZE CITY GASES ONLY GAS PRESSURE REGULATION GAS VALVES WATER LINE CONNECTIONS THERMOMETERS (Not supplied) RELIEF VALVE INSTALLATION DIAGRAMS *PIPE TO OPEN DRAIN INSTALL IN ACCORDANCE WITH LOCAL CODES TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE TWO TEMPERATURE - TWO HEATERS HIGH TEMPERATURE TWO TEMPERATURE - THREE HEATERS (TWO PRE-HEATERS/ONE BOOSTER) TWO TEMPERATURE - TWO HEATERS (ONE PRE-HEATER/ONE BOOSTER HEATER) TWO TEMPERATURE - ONE HEATER HIGH TEMPERATURE WITH RECIRCULATION OF SANITIZING LOOP MANIFOLD KITS HEATER WIRING START UP IMPORTANT PURGING Page Page FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: TO TURN OFF GAS TO APPLIANCE explosion may result causing property damage, personal injury or loss of life. OPERATING INSTRUCTIONS SEQUENCE OF OPERATION WATER TEMPERATURE CONTROL ADJUSTMENT PROCEDURE (Initial Start-Up) ADJUSTMENT PROCEDURE FOR FIRE-RATE, LOW NOX AND HIGH ELEVATION (Fine-Tune) Page Page GENERAL INFORMATION POWER BURNER THERMOSTAT HIGH LIMIT MAINTENANCE DRAINING SEDIMENT REMOVAL LIME SCALE REMOVAL RELIEF VALVE CIRCULATING PUMP INFORMATION IMPORTANT TROUBLESHOOTING Page REPLACEMENT PARTS Model BTP(V) Limited Warranty