A.O. Smith BTX-80 SERIES 100 instruction manual Temperature Regulation, Display, D E F

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TEMPERATURE REGULATION

It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that the water temperature be set for the lowest temperature which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater.

Short repeated heating cycles caused by small hot water uses can cause temperatures at the point of use to exceed the thermostat setting by up to 20°F (11°C). If you experience this type of use you should consider using lower temperature settings to reduce scald hazards.

HOT 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, 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 from this heater 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 the lowest possible temperature setting that satisfies your hot water needs, a means such as a mixing valve, shall be used at the hot water taps used by these people or at the water heater. Mixing valves are available at plumbing supply or hardware stores, see Figure 2. Follow manufacturer’s instructions for installation of the valves. Before changing the factory setting on the thermostat, in this manual, see Figure 26.

Never allow small children to use a hot water tap, or to draw their own bath water. Never leave a child or handicapped person unattended in a bathtub or shower.

The water heater should be located in an area where the general public does not have access. If a suitable area is not available, a cover should be installed over the thermostat to prevent tampering.

The water temperature setting was factory set at the lowest temperature;

Pressing the “COOLER” button decreases temperature and pressing the “HOTTER” button increases the temperature.

Setting water heater temperature at 120°F (49°C) (Approx. “” mark on temperature setting of gas valve) will reduce risks of scalds. Some states or local codes require settings at specific lower temperatures.

To avoid any unintentional changes in water temperature settings, the control has a tamper resistant feature for changing the temperature setting. To change the temperature setting follow these instructions:

1.“Wake Up” the temperature indicators by holding down both “COOLER” and “HOTTER” temperature adjustment buttons at the same time for one second, see Figure 26. One or two of the temperature indicators will light up. These indicators will only remain on for 30 seconds if no further buttons are pressed. After

30 seconds the control will go back to “Sleep” mode.

2.Release both of the temperature adjustment buttons.

a.To decrease the temperature press and release the “COOLER” button until the desired setting is reached.

b.To increase the temperature press and release the “HOTTER” button until the desired setting is reached.

NOTE: Holding down the button will not continue to lower or raise the temperature setting. The button must be pressed and released for each temperature change desired.

Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.

TEMPERATURE INDICATORS

TEMPERATURE ADJUSTMENT BUTTONS

 

Display

Time to Produce

 

2nd & 3rd Degree

Water Temperature

B C D E F

Burns on Adult Skin

F = approx. 180°F (82°C)

 

Nearly Instantaneous

E = approx. 170°F (77°C)

 

Nearly Instantaneous

D = approx. 160°F (71°C)

 

About 1/2 Second

C = approx. 150°F (65°C)

 

About 1 1/2 Seconds

B = approx. 140°F (60°C)

 

Less than 5 Seconds

B = approx. 130°F (54°C)

 

More than 30 Seconds

= approx. 120°F (49°C)

 

More than 5 Minutes

FIGURE 26.

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Contents Printed Power Vented GAS Models W/HOT Surface IgnitionWhenever maintenance adjustment or service is required 197086-004Safe INSTALLATION, USE and Service ApprovalsImportant Definitions General Safety Information General Safety Information Table of Contents IntroductionSignage Installation of Carbon Monoxide DetectorsApproved Carbon Monoxide Detectors ExemptionsTypical Installation Replacement Parts and Deliming ProductsElbow Access Door Condensate Hose and Drain PAN Mixing Valves Capacity and Gas and Electrical Characteristics ROUGH-IN-DIMENSIONSRough-In-Dimensions Recovery capacity based on 90% thermal efficiencyLocating the NEW Water Heater Facts to Consider About the LocationInsulation Blankets Air REQUIREMENTsFresh Air Openings For Confined Spaces Unconfined SpaceConfined Space Outdoor Air Through Two OpeningsOutdoor AIR Through TWO Horizontal Ducts Outdoor AIR Through TWO Vertical DuctsAIR from Other Indoor Spaces Water Piping Installing the NEW Water HeaterChemical Vapor Corrosion Space Heating and Potable Water SystemTemperature-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 Vent Pipe Assembly VentingTermination Clearances Sidewall Power Vent Vent Pipe TerminationPlanning the Vent System CondensateBreathing Hazard Carbon Monoxide Gas Blower Assembly Installation Installation of Vent SystemVent Terminal INSTALLATION, Sidewall Than the marked circle Power Vent Wiring Schematic FigureChisel an opening approximately one half inch 1.3 cm larger Pointed in the correct position, see FigureInstallation of Vent SYSTEM, Sidewall Installation of Vertical Vent SystemVent Attenuation Assembly Installation Vent attenuation assembly Flexible tubing Instruction sheetVertical VAA Installations Recommended Inch vent Vertical VAA Installations Vent Pipe Preparation Recommended BRUSH* Size for Primer Cement ApplicationsStep F Step BStep E Step GWhat to do if YOU Smell GAS Power Before ServicingDo not try to light the burner by hand Do not TRY to Light the Burner by HandDisplay Temperature RegulationTemperature Indicators Temperature Adjustment Buttons D E FFor Your Information Start UP ConditionsOperational Conditions Periodic Maintenance Anode ROD InspectionTo Flush the Water Heater Storage Tank Temperature-Pressure Relief Valve TestKeep hands clear of drain Open the water heater drain valve to flush the storage tankService Leakage CheckpointsTroubleshooting Guidelines Trouble ShootingAssembly if damaged or defective Ensure the flame sensor is clean use ultra fine steelTurn off power to the water heater Unplug ignitor assembly plug from control. Check resistanceAssembly .2 If the reading taken is less than 100,000 Unplug the ignitor assembly plug from the control. CheckResistance of the black resistor wire between pins Check vent temperature limit switch if it is determinedTroubleshooting Guidelines Tank Service and Repair ExpensesClaim Procedure 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.
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