A.O. Smith BTX-80 SERIES 100 instruction manual Table of Contents, Introduction

Page 5

TABLE OF CONTENTS

SAFE INSTALLATION, USE AND SERVICE

2

APPROVALS

2

GENERAL SAFETY INFORMATION

3-4

TABLE OF CONTENTS

5

INTRODUCTION

5

Qualified Installer or Service Agency

5

Preparing for the Installation

5

INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH

OF MASSACHUSETTS

6

TYPICAL INSTALLATION

7-9

ROUGH IN DIMENSIONS

10

LOCATING THE NEW WATER HEATER

11-14

Facts to Consider About Location

11-12

Insulation Blankets

12

Air Requirements

12

Unconfined Space

13

Confined Space

13

Fresh Air Openings for Confined Spaces

13

Outdoor Air Through One and Two Openings

13

Outdoor Air Through Horizontal and Vertical Ducts

14

Air from Other Indoor Spaces

14

INSTALLING THE NEW WATER HEATER

15-28

Chemical Vapor Corrosion

15

Water Piping

15

Space Heating and Potable Water System

15

Closed Water Systems

15

Thermal Expansion

16

Temperature-Pressure Relief Valve

16-17

High Altitude Installation

17

Gas Piping

17

Sediment Traps

18

Filling the Water Heater

18

Vent Pipe Assembly

19

Venting

19

Vent Pipe Termination

20

Planning the Vent System

21

Condensate

21-22

Blower Assembly Installation

22

Installation of Vent System

22

Vent Terminal Installation, Sidewall

22-23

Installation of Vent System, Sidewall

24

Installation of Vertical Vent System

24

Vent Attenuation Assembly Installation Instructions

25

Vent Pipe Preparation

27-28

LIGHTING & OPERATING LABEL

29

TEMPERATURE REGULATION

30

FOR YOUR INFORMATION

31

Start Up Conditions

31

Operational Conditions

31

PERIODIC MAINTENANCE

32-34

Venting System Inspection

32

Burner Operation and Inspection

32

Burner Cleaning

32

Housekeeping

32

Anode Rod Inspection

32-33

Temperature-Pressure Relief Valve Test

33

Draining and Flushing

33

Service

34

LEAKAGE CHECKPOINTS

34

TROUBLESHOOTING GUIDELINES

35-38

LIMITED WARRANTY

39

INTRODUCTION

Thank You for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service.

Abbreviations Found In This Instruction Manual:

CSA - Canadian Standards Association

ANSI - American National Standards Institute

NFPA - National Fire Protection Association

ASME - American Society of Mechanical Engineers

GAMA - Gas Appliance Manufacturer’s Association

UL - Underwriters Laboratories Inc.

This gas-fired water heater is design certified by Underwriters Laboratories Inc. under American National Standard/CSA Standard for Gas Water Heaters ANSI Z21.10.3 • CSA 4.3 (current edition).

Qualified Installer or Service Agency

Installation and service of this water heater requires ability equivalent to that of a Qualified Agency (as defined by ANSI below) in the field involved. Installation skills such as plumbing, air supply, venting, gas supply and electrical supply are required in addition to electrical testing skills when performing service.

ANSI Z223.1 2006 Sec. 3.3.83: “Qualified Agency” - “Any individual, firm, corporation or company that either in person or through a representative is engaged in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection, installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.”

If you are not qualified (as defined by ANSI above) and licensed or certified as required by authority having jurisdiction to perform a given task do not attempt to perform any of the procedures described in this manual. If you do not understand the instructions given in this manual do not attempt to perform any procedures outlined in this manual.

Preparing for the Installation

1.Read “General Safety Information” section, page 3 and 4 of this manual first and then entire manual carefully. If you don’t follow safety rules, the water heater will not operate properly. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.

This manual contains instructions for installation, operation, and maintenance of the gas-fired water heater. It also contains warnings throughout the manual that you must read and be aware of. All warnings and all instructions are essential to proper operation of the water heater and your safety. Since we cannot put everything on the first few pages, READ ENTIRE MANUAL BEFORE ATTEMPTING

TO INSTALL OR OPERATE THE WATER HEATER.

2.The installation must conform with these instructions and local code authority having jurisdiction. In absence of local codes, installation must comply with current editions of the National Fuel Gas Code, ANSI Z223.1/NFPA54 and National Electrical Code, NFPA70 or CAN/ CSA-B149.1, the Natural Gas and Propane Installation Code and CSA C22.1, Canadian Electrical Code. All documents are available from Canadian Standards Association, 8501 East Pleasant Valley Road, Cleveland, OH 44131. NFPAdocuments are also available from National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.

3.The water heater when installed must be grounded in accordance with the local codes, or in the absence of local codes: the National

Electrical Code (NFPA 70) or the Canadian Electrical Code (C22.1).

4.If after reading this manual you have any questions or do not understand any portion of the instructions, call the local gas utility or the manufacturer whose name appears on the rating plate.

5.Carefully plan the place where you are going to put the water heater. Correct combustion, vent action, and vent pipe installation are very important in preventing death from possible carbon monoxide poisoning and fires, see Figures 1 and 2.

Examine the location to ensure the water heater complies with the

“Locating the New Water Heater” section in this manual.

6.For California installation this water heater must be braced, anchored, or strapped to avoid falling or moving during an earthquake. See instructions for correct installation procedures.

Instructions may be obtained from California Office of the State

Architect, 400 P Street, Sacramento, CA 95814.

7.Massachusetts Code requires this water heater to be installed in accordance with Massachusetts 248-CMR 2.00: State Plumbing Code and 248-CMR 5.00.

8.Complies with SCAQMD rule #1146 and districts having equivalent NOx requirements.

5

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Contents Whenever maintenance adjustment or service is required Power Vented GAS Models W/HOT Surface IgnitionPrinted 197086-004Important Definitions Safe INSTALLATION, USE and ServiceApprovals General Safety Information General Safety Information Introduction Table of ContentsApproved Carbon Monoxide Detectors Installation of Carbon Monoxide DetectorsSignage ExemptionsElbow Access Door Typical InstallationReplacement Parts and Deliming Products Condensate Hose and Drain PAN Mixing Valves Rough-In-Dimensions ROUGH-IN-DIMENSIONSCapacity and Gas and Electrical Characteristics Recovery capacity based on 90% thermal efficiencyFacts to Consider About the Location Locating the NEW Water HeaterAir REQUIREMENTs Insulation BlanketsConfined Space Unconfined SpaceFresh Air Openings For Confined Spaces Outdoor Air Through Two OpeningsAIR from Other Indoor Spaces Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts Chemical Vapor Corrosion Installing the NEW Water HeaterWater Piping Space Heating and Potable Water SystemValve and Pipe Insulation if supplied Temperature-Pressure Relief ValveThermal Expansion Gas Piping High Altitude InstallationContact qualified installer or service agency Per square inch 3.5 kPa Sediment TrapsFilling the Water Heater Venting Vent Pipe AssemblyVent Pipe Termination Termination Clearances Sidewall Power VentBreathing Hazard Carbon Monoxide Gas Planning the Vent SystemCondensate Vent Terminal INSTALLATION, Sidewall Blower Assembly InstallationInstallation of Vent System Chisel an opening approximately one half inch 1.3 cm larger Power Vent Wiring Schematic FigureThan the marked circle Pointed in the correct position, see FigureInstallation of Vertical Vent System Installation of Vent SYSTEM, SidewallVertical VAA Installations Recommended Vent Attenuation Assembly InstallationVent attenuation assembly Flexible tubing Instruction sheet Inch vent Vertical VAA Installations Recommended BRUSH* Size for Primer Cement Applications Vent Pipe PreparationStep E Step BStep F Step GDo not try to light the burner by hand Power Before ServicingWhat to do if YOU Smell GAS Do not TRY to Light the Burner by HandTemperature Indicators Temperature Adjustment Buttons Temperature RegulationDisplay D E FOperational Conditions For Your InformationStart UP Conditions Anode ROD Inspection Periodic MaintenanceKeep hands clear of drain Temperature-Pressure Relief Valve TestTo Flush the Water Heater Storage Tank Open the water heater drain valve to flush the storage tankLeakage Checkpoints ServiceTrouble Shooting Troubleshooting GuidelinesTurn off power to the water heater Ensure the flame sensor is clean use ultra fine steelAssembly if damaged or defective Unplug ignitor assembly plug from control. Check resistanceResistance of the black resistor wire between pins Unplug the ignitor assembly plug from the control. CheckAssembly .2 If the reading taken is less than 100,000 Check vent temperature limit switch if it is determinedTroubleshooting Guidelines Claim Procedure Service and Repair ExpensesTank ALL Other Parts

BTX-80 SERIES 100 specifications

The A.O. Smith BTX-80 Series 100 is a cutting-edge heating solution designed for effective and efficient water heating. This model is particularly well-suited for residential applications, offering an impressive balance of performance and energy efficiency.

One of the standout features of the BTX-80 Series 100 is its innovative design, which incorporates a high-efficiency condensing technology. This allows the unit to capture and utilize heat that would otherwise be lost in traditional systems, thereby maximizing energy usage and reducing overall operating costs. With an impressive energy factor (EF) rating, this water heater contributes to lower utility bills while promoting environmental sustainability.

The BTX-80 is equipped with a powerful 80-gallon tank, providing ample hot water for households of varying sizes. Its large capacity ensures that multiple appliances can operate simultaneously without running out of hot water, making it an ideal choice for families with high demand. The model also incorporates a robust heating element that ensures rapid recovery and maintains consistent water temperatures.

Safety and convenience are paramount in the design of the BTX-80. It features a comprehensive digital control system that allows users to set precision temperature settings according to their needs. The intuitive interface simplifies adjustments and monitoring, while safety mechanisms like temperature and pressure relief valves provide peace of mind during operation.

A.O. Smith has also prioritized quality and durability in the construction of the BTX-80 Series 100. The tank is made from high-quality materials and comes with a robust enamel coating that resists corrosion and extends its lifespan. Additionally, the unit is backed by a lengthy warranty, reflecting the manufacturer's confidence in its longevity.

Installation and maintenance are straightforward with the BTX-80, as it is designed to fit seamlessly into existing plumbing configurations. Furthermore, the unit operates quietly, ensuring minimal disruption in the home environment.

In conclusion, the A.O. Smith BTX-80 Series 100 stands out in the market as a reliable, energy-efficient, and user-friendly water heating solution. With its advanced technologies and emphasis on safety and durability, it proves to be a smart investment for any household looking to improve their hot water system.