A.O. Smith BTX-80 SERIES 100 Installing the NEW Water Heater, Chemical Vapor Corrosion

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INSTALLING THE NEW WATER HEATER

CHEMICAL VAPOR CORROSION

CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN CHEMICAL VAPORS. SUCH CORROSION MAY RESULT IN FAILURE AND RISK OF ASPHYXIATION.

Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride (water softener salt), waxes, and process chemicals are typical compounds which are potentially corrosive.

Do not store products of this sort near the heater. Also, air which is brought in contact with the heater should not contain any of these chemicals. If necessary, uncontaminated air should be obtained from remote or outside sources. The limited warranty is voided when failure of water heater is due to a corrosive atmosphere. (See limited warranty for complete terms and conditions).

Water Piping

This water heater should not be connected to any heating systems or

component(s) used with a non-potable water heating appliance.

All piping components connected to this unit for space heating applications should be suitable for use with potable water.

Toxic chemicals, such as those used for boiler treatment should not be introduced into this system.

When the system requires water for space heating at temperatures higher than required for domestic water purposes, a mixing valve must be installed. Please refer to Figure 2 for suggested piping arrangement.

SPACE HEATING AND POTABLE WATER SYSTEM

This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and is considered suitable for Water (Potable) Heating and Space Heating.

DANGER

Water temperature over 125°F (52°C) can cause severe burns instantly resulting in severe injury or death.

Children, the elderly and the physically or mentally disabled are at highest risk for scald injury.

Feel water before bathing or showering.

Temperature limiting valves are available.

Read instruction manual for safe temperature setting.

Your water heater is equipped with inlet/outlet connections for use in space heating applications (see Figure 2). If this water heater is to be used to supply both space heating and potable (drinking) water, the instructions listed below must be followed:

• Be sure to follow the manual(s) shipped with the air handler or other

type heating system.

• This water heater is not to be used as a replacement for an existing

boiler installation.

• Do not use with piping that has been treated with chromates, boiler

seal or other chemicals and do not add any chemicals to the water

heater piping

• If the space heating system requires water temperatures in excess of

120°F (49°C), a mixing valve must be installed per the manufacturer’s

HOTTER WATER CAN SCALD:

Water heaters are intended to produce hot water. Water heated to a temperature which will satisfy space heating, clothes washing, dish washing, cleaning and other sanitizing needs can scald and permanently injure you upon contact. Some people are more likely to be permanently injured by hot water than others. These include the elderly, children, the infirm, or physically/mentally handicapped. If anyone using hot water fits into one of these groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precautions. In addition to using lowest possible temperature setting that satisfies your hot water needs, a means such as a mixing valve, should be used at hot water taps used by these people or at the water heater, see Figure 2. Valves for reducing point of use temperature by mixing cold and hot water are also available:

Consult a Qualified Installer or Service Agency. Follow manufacturer’s instructions for installation of valves. Before changing the factory setting on thermostat, read “Temperature Regulation” section in this manual.

instructions in the potable hot water supply to limit the risk of scald

injury.

• Pumps, valves, piping and fittings must be compatible with potable

water.

• A properly installed flow control valve is required to prevent

thermosiphoning. Thermosiphoning is the result of a continuous

flow of water through the air handler circuit during the off cycle.

Weeping (blow off) of the temperature and pressure relief valve

(T & P) or higher than normal water temperatures are the first signs

of thermosiphoning.

• The hot water line from the water heater should be vertical past

any mixing valve or supply line to the heating system to remove air

bubbles from the system.

• Do not connect the water heater to any system or components

previously used with non-potable water heating appliances when

used to supply potable water.

Closed Water Systems

Water supply systems may, because of code requirements or such conditions as high line pressure, among others, have installed devices such as pressure reducing valves, check valves, and back flow preventers. Devices such as these cause the water system to be a closed system.

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Contents 197086-004 Power Vented GAS Models W/HOT Surface IgnitionWhenever maintenance adjustment or service is required PrintedSafe INSTALLATION, USE and Service ApprovalsImportant Definitions General Safety Information General Safety Information Introduction Table of ContentsExemptions Installation of Carbon Monoxide DetectorsApproved Carbon Monoxide Detectors SignageTypical Installation Replacement Parts and Deliming ProductsElbow Access Door Condensate Hose and Drain PAN Mixing Valves Recovery capacity based on 90% thermal efficiency ROUGH-IN-DIMENSIONSRough-In-Dimensions Capacity and Gas and Electrical CharacteristicsFacts to Consider About the Location Locating the NEW Water HeaterAir REQUIREMENTs Insulation BlanketsOutdoor Air Through Two Openings Unconfined SpaceConfined Space Fresh Air Openings For Confined SpacesOutdoor AIR Through TWO Horizontal Ducts Outdoor AIR Through TWO Vertical DuctsAIR from Other Indoor Spaces Space Heating and Potable Water System Installing the NEW Water HeaterChemical Vapor Corrosion Water PipingTemperature-Pressure Relief Valve Thermal ExpansionValve and Pipe Insulation if supplied High Altitude Installation Contact qualified installer or service agencyGas Piping Sediment Traps Filling the Water HeaterPer square inch 3.5 kPa Venting Vent Pipe AssemblyVent Pipe Termination Termination Clearances Sidewall Power VentPlanning the Vent System CondensateBreathing Hazard Carbon Monoxide Gas Blower Assembly Installation Installation of Vent SystemVent Terminal INSTALLATION, Sidewall Pointed in the correct position, see Figure Power Vent Wiring Schematic FigureChisel an opening approximately one half inch 1.3 cm larger Than the marked circleInstallation of Vertical Vent System Installation of Vent SYSTEM, SidewallVent Attenuation Assembly Installation Vent attenuation assembly Flexible tubing Instruction sheetVertical VAA Installations Recommended Inch vent Vertical VAA Installations Recommended BRUSH* Size for Primer Cement Applications Vent Pipe PreparationStep G Step BStep E Step FDo not TRY to Light the Burner by Hand Power Before ServicingDo not try to light the burner by hand What to do if YOU Smell GASD E F Temperature RegulationTemperature Indicators Temperature Adjustment Buttons DisplayFor Your Information Start UP ConditionsOperational Conditions Anode ROD Inspection Periodic MaintenanceOpen the water heater drain valve to flush the storage tank Temperature-Pressure Relief Valve TestKeep hands clear of drain To Flush the Water Heater Storage TankLeakage Checkpoints ServiceTrouble Shooting Troubleshooting GuidelinesUnplug ignitor assembly plug from control. Check resistance Ensure the flame sensor is clean use ultra fine steelTurn off power to the water heater Assembly if damaged or defectiveCheck vent temperature limit switch if it is determined Unplug the ignitor assembly plug from the control. CheckResistance of the black resistor wire between pins Assembly .2 If the reading taken is less than 100,000Troubleshooting Guidelines ALL Other Parts Service and Repair ExpensesClaim Procedure Tank

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.
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