Manuals / A.O. Smith / Household Appliance / Water Heater

A.O. Smith HYB-90N warranty TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN PHONE 1-800-433-2545 FAX

Models: HYB-90N

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500 TENNESSEE WALTZ PARKWAY

500 TENNESSEE WALTZ PARKWAY

ASHLAND CITY, TN 37015

PHONE: 1-800-433-2545 FAX: 1-800-433-2515

www.aosmithwaterheaters.com / email: parts@hotwater.com

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A.O. Smith HYB-90N warranty TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN PHONE 1-800-433-2545 FAX

Contents

For Your Safety POWER VENT GAS MODELSInstallation and Operating Manual HYBRID GAS WATER HEATERSTABLE OF CONTENTS IMPORTANT INFORMATIONSAFE INSTALLATION, USE AND SERVICE IMPORTANT DEFINITIONSGENERAL SAFETY DANGER GENERAL SAFETYINTRODUCTION Page REPLACEMENT PARTS AND DELIMING PRODUCTS GET TO KNOW YOUR WATER HEATER - GAS MODELSINSTALLATION CONSIDERATIONS ROUGH IN DIMENSIONSINSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS WATER PIPING - MIXING VALVE USAGE Water Potable Heating All models are consideredFACTS TO CONSIDER ABOUT LOCATION HANDLE INSTALLATION DANGEREARTHQUAKE ZONES Access ToScrews ScrewsTop Casing Front ScrewsCOMBUSTION AIR AND VENTILATION APPLIANCES IN UNCONFINED SPACESAPPLIANCES IN CONFINED SPACES B. ALL AIR FROM OUTDOORS See Figures 12, 13 and CHEMICAL VAPOR CORROSION WATER PIPINGCLOSED WATER SYSTEMS THERMAL EXPANSIONTEMPERATURE-PRESSURE RELIEF VALVE HARD WATERT&P Valve and Pipe Insulation if supplied GAS PIPING SEDIMENT TRAPSHIGH ALTITUDE INSTALLATIONS GAS LINE PURGINGFLOODING/FREEZING FILLING THE WATER HEATERIf using 2 inch vent pipe VENT PIPE TERMINATIONPLANNING THE VENT SYSTEM If using 3 inch vent pipe RODENT SCREEN INSTALL INTO ELBOW GROUND LEVEL OR MAXIMUM SNOW LINETERMINATION ELBOW ELBOW STRAPINSTALLATION OF VENT SYSTEM VENT TERMINAL INSTALLATION, SIDEWALLCONDENSATE CONDENSATION WARNINGSEQUENCE OF INSTALLATIONS INSTALLATION SEQUENCEVent terminals supplied with heater must be used INSTALLATION OF VENT SYSTEM, SIDEWALL INSTALLATION OF VERTICAL VENT SYSTEMVENT PIPE PREPARATION RECOMMENDED BRUSH* SIZE FOR PRIMER AND CEMENT APPLICATIONS STEP ASTEP B U.S. POWER VENT STEP ESTEP F STEP G CONNECTION TO VENT PIPEVENT HOODS MAY BE EXTREMELY HOT DURING OPERATION ELECTRICAL CONNECTIONS CALIBRATIONFIGURE 33a “OFF”, “up”OPERATING INSTRUCTIONS DISPLAY PANELNumeric Display CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICINGCONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUSLIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTINGOPERATING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCEHEAT CYCLE DEFINITIONS STATEDESCRIPTION TEMPERATURE REGULATION UNIQUE HYBRID FEATURES Temperature ProbesWater Circulation Pump TEMPERATURE REGULATION Line Voltage MonitorCONSTANT OUTPUT TEMPERATURE CONTROL Detection of Failure to Maintain Desired Constant TemperatureSTART UP CONDITIONS OPERATIONAL CONDITIONSMAINTENANCE HOUSEKEEPINGVENTING SYSTEM INSPECTION BURNER OPERATION AND INSPECTIONANODE ROD REPLACEMENT TEMPERATURE-PRESSURE RELIEF VALVE OPERATIONCLEANING THE INLET WATER FILTER MOTORSCLEANING THE HEAT ENGINE FLUSHING THE HEAT EXCHANGER LIME BUILD- UPFAULT INDICATION AND ERROR CODES DRAINING THE TANKDIAGNOSTIC DISPLAY DiagnosticCode and DisplayedFault LockoutCause RemedyFault LockoutCode DescriptionFault LockoutCode DescriptionTROUBLESHOOTING Problem WHEN THE TAP IS OPENEDCheck if there is any error code on b.The unit display is an error codeSERVICE LEAKAGE CHECKPOINTSPARTS IDENTIFICATION ITEM #DESCRIPTION A Bafﬂe, Flue B Hot Water Outlet Nipple w/ Anode, Heat TrapAB C DEF G T SH R I Q P REPLACEMENT PARTS DESCRIPTION KIT #LIMITED RESIDENTIAL GAS WARRANTY SERVICE AND LABOR RESPONSIBILITYCLAIM PROCEDURE CONDITIONS AND EXCEPTIONSPage Page 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN PHONE 1-800-433-2545 FAX