A.O. Smith HYB-90N warranty Table Of Contents, Important Information

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TABLE OF CONTENTS

TABLE OF CONTENTS

SAFE INSTALLATION, USE AND SERVICE

3

OPERATING INSTRUCTIONS

33

GENERAL SAFETY

4

Display Panel

33

INTRODUCTION

6

Wiring Diagram

35

Get To Know Your Water Heater - Gas Models. . . .

. 8

Lighting Instructions

36

Replacement Parts And Deliming Products

. 8

Heat Cycle Definitions

37

INSTALLATION CONSIDERATIONS

9

Temperature Regulation

38

Rough In Dimensions

. 9

Unique Hybrid Features

39

Water Piping - Mixing Valve Usage

.11

Temperature Regulation

41

Facts To Consider About Location

12

Constant Output Temperature Control

42

Handle Installation

13

Start Up Conditions

42

Earthquake Zones

14

Operational Conditions

42

Combustion Air And Ventilation

16

MAINTENANCE

43

Appliances In Unconfined Spaces

16

Housekeeping

43

Appliances In Confined Spaces

16

Venting System Inspection

43

Chemical Vapor Corrosion

18

Burner Operation And Inspection

43

Water Piping

18

Anode Rod Inspection

43

Closed Water Systems

18

Anode Rod Replacement

44

Thermal Expansion

18

Temperature-pressure Relief Valve Operation . . . .

44

Hard Water

19

Motors

44

Temperature-pressure Relief Valve

19

Snow Accumulation

44

Gas Piping

21

Cleaning The Inlet Water Filter

44

Sediment Traps

21

Cleaning The Heat Engine

45

Gas Line Purging

22

Flushing The Heat Exchanger (Lime Build-up) . . . .

45

High Altitude Installations

22

Draining The Tank

46

Flooding/freezing

22

Fault Indication And Error Codes

46

Filling The Water Heater

22

Diagnostic Display

47

Venting

22

TROUBLESHOOTING

51

Vent Pipe Termination

23

Service

53

Planning The Vent System

23

Leakage Checkpoints

53

Condensate

25

Parts Identification

54

Installation Of Vent System

25

Replacement Parts

56

Vent Terminal Installation, Sidewall

25

LIMITED RESIDENTIAL GAS WARRANTY

57

Sequence Of Installations

26

NOTES

58

Installation Sequence

26

 

 

 

Installation Of Vent System, Sidewall

27

 

 

 

Installation Of Vertical Vent System

27

 

 

 

Vent Pipe Preparation

28

 

 

 

Connection To Vent Pipe

30

 

 

 

U.S. Power Vent

31

 

 

 

Electrical Connections

32

 

 

 

CALIBRATION

32

 

 

 

 

 

 

 

 

Fill out and keep with water heater.

 

 

 

IMPORTANT INFORMATION

 

 

 

Model Number _________________________________________

 

 

 

Serial Number__________________________________________

 

 

 

Installation Information:

 

 

 

 

 

Date Installed __________________________________________

 

 

 

Company’s Name _______________________________________

 

 

 

Street or P.O. Box_______________________________________

 

 

 

City, State, and Zip Code _________________________________

 

 

 

Phone Number ____________ Plumber’s Name_______________

 

 

 

 

 

 

 

 

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Contents Installation and Operating Manual For Your SafetyPOWER VENT GAS MODELS HYBRID GAS WATER HEATERSTABLE OF CONTENTS IMPORTANT INFORMATIONSAFE INSTALLATION, USE AND SERVICE IMPORTANT DEFINITIONSGENERAL SAFETY DANGER INTRODUCTION 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 EARTHQUAKE ZONES Access ToScrews Top Casing FrontAPPLIANCES IN CONFINED SPACES COMBUSTION AIR AND VENTILATIONAPPLIANCES IN UNCONFINED SPACES B. ALL AIR FROM OUTDOORS See Figures 12, 13 and CLOSED WATER SYSTEMS CHEMICAL VAPOR CORROSIONWATER PIPING THERMAL EXPANSIONHARD WATER TEMPERATURE-PRESSURE RELIEF VALVET&P Valve and Pipe Insulation if supplied GAS PIPING SEDIMENT TRAPSFLOODING/FREEZING HIGH ALTITUDE INSTALLATIONSGAS LINE PURGING FILLING THE WATER HEATERPLANNING THE VENT SYSTEM If using 2 inch vent pipeVENT PIPE TERMINATION TERMINATION ELBOW If using 3 inch vent pipeRODENT SCREEN INSTALL INTO ELBOW GROUND LEVEL OR MAXIMUM SNOW LINE ELBOW STRAPCONDENSATE INSTALLATION OF VENT SYSTEMVENT TERMINAL INSTALLATION, SIDEWALL CONDENSATION WARNINGVent terminals supplied with heater must be used SEQUENCE OF INSTALLATIONSINSTALLATION SEQUENCE INSTALLATION OF VENT SYSTEM, SIDEWALL INSTALLATION OF VERTICAL VENT SYSTEMVENT PIPE PREPARATION STEP B RECOMMENDED BRUSH* SIZE FOR PRIMER AND CEMENT APPLICATIONSSTEP A STEP F U.S. POWER VENTSTEP E STEP G CONNECTION TO VENT PIPEVENT HOODS MAY BE EXTREMELY HOT DURING OPERATION FIGURE 33a ELECTRICAL CONNECTIONSCALIBRATION “OFF”, “up”OPERATING INSTRUCTIONS DISPLAY PANELNumeric Display CONTROLS. WIRING ERRORS CAN CAUTION LABEL ALL WIRES PRIOR TODISCONNECTION WHEN SERVICING CAUSE IMPROPER AND DANGEROUSOPERATING INSTRUCTIONS LIGHTING INSTRUCTIONSFOR YOUR SAFETY READ BEFORE LIGHTING TO TURN OFF GAS TO APPLIANCEDESCRIPTION HEAT CYCLE DEFINITIONSSTATE TEMPERATURE REGULATION UNIQUE HYBRID FEATURES Temperature ProbesWater Circulation Pump Line Voltage Monitor START UP CONDITIONS CONSTANT OUTPUT TEMPERATURE CONTROLDetection of Failure to Maintain Desired Constant Temperature OPERATIONAL CONDITIONSVENTING SYSTEM INSPECTION MAINTENANCEHOUSEKEEPING BURNER OPERATION AND INSPECTIONTEMPERATURE-PRESSURE RELIEF VALVE OPERATION ANODE ROD REPLACEMENTCLEANING THE INLET WATER FILTER MOTORSCLEANING THE HEAT ENGINE FLUSHING THE HEAT EXCHANGER LIME BUILD- UPFAULT INDICATION AND ERROR CODES DRAINING THE TANKCode and DIAGNOSTIC DISPLAYDiagnostic DisplayedCause FaultLockout RemedyCode FaultLockout DescriptionCode TROUBLESHOOTING b.The unit display is an error code WHEN THE TAP IS OPENEDCheck if there is any error code on system installed, or there is aSERVICE LEAKAGE CHECKPOINTSA Baffle, Flue B Hot Water Outlet Nipple w/ Anode, Heat Trap PARTS IDENTIFICATIONITEM # AB C DEF G T SH R I Q P REPLACEMENT PARTS DESCRIPTION KIT #CLAIM PROCEDURE LIMITED RESIDENTIAL GAS WARRANTYSERVICE AND LABOR RESPONSIBILITY CONDITIONS AND EXCEPTIONSPage Page 500 TENNESSEE WALTZ PARKWAY ASHLAND CITY, TN PHONE 1-800-433-2545 FAX