A.O. Smith Water Heater Unconfined Space, Confined Space, Carbon Monoxide Warning, Room

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Carbon Monoxide Warning

Water heater must be vented to outdoors.

Vent must be installed by a qualified technician using the installation instructions.

Examples of a qualified technican include: gas technicians, authorized gas company personel, and authorized service persons.

Failure to so do can result in death or carbon monoxide poisoning.

IMPORTANT: Air for combustion and ventilation must not come from a corrosive atmosphere. Any failure due to corrosive elements in the atmosphere is excluded from warranty coverage.

The following types of installation (not limited to the following) will require outdoor air for combustion due to chemical exposure and may reduce but not eliminate the presence of corrosive chemicals in the air:

•beauty shops

•photo processing labs

•buildings with indoor pools

•water heaters installed in laundry, hobby, or craft rooms

•water heaters installed near chemical storage areas

Combustion air must be free of acid-forming chemicals such as sulfur, fluorine, and chlorine. These elements are found

in aerosol sprays, detergents, bleaches, cleaning solvents, air fresheners, paint, and varnish removers, refrigerants, and many other commercial and household products. When burned, vapors from these products form highly corrosive acid

compounds. These products should not be stored or used near the water heater or air inlet.

Combustion and ventilation air requirements are determined by the location of the water heater. The water heater may be located in either an open (unconfined) area or in a confined area or small enclosure such as a closet or small room. Confined spaces are areas with less than 50 cubic feet for each 1,000 BTUH of the total input for all gas-using appliances.

Unconfined Space

A water heater in an unconfined space uses indoor air for combustion and requires at least 50 cubic feet for each 1,000 BTUH of the total input for all gas appliances. The table below shows a few examples of the minimum square footage (area) required for various BTUH inputs.

TABLE 3

 

 

Typical

Room

BTUH Input

8'Ceiling

with

30,000

9x21

45,000

14 x20

60,000

15x25

75,000

15x31

90,000

20

x 28

105,000

20

x 33

120,000

25

x 30

135,000

28

x 30

IMPORTANT:

•The area must be open and be able to provide the proper air requirements to the water heater. Areas that are being used for storage or contain large objects may not be suitable for water heater installation.

•Water heaters installed in open spaces in buildings with unusually tight construction may still require out- door air to function properly. In this situation, outside air openings should be sized the same as for a con- fined space.

•Modern home construction usually requires supplying outside air into the water heater area.

Confined Space

For the correct and proper operation of this water heater, ample air must be supplied for the combustion, ventilation, and dilution of flue gases. Small enclosures and confined areas must have two permanent openings so that sufficient fresh air can be drawn from outside of the enclosure. One

opening shall be within 12 inches of the top and one within 12 inches of the bottom of the enclosure as shown in

Figure 4.

The size of each opening (free area) is determined by the total BTUH input of all gas utilization equipment (i.e., water heaters, furnaces, clothes dryers, etc.) and the method by which the air is provided. The BTUH input can be found on the water heater rating plate. Additional air can be provided by two methods:

1.All air from inside the building.

2.All air from outdoors.

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Contents Smith InstallerWater Important Definitions Fire Hazard Improper installation and use may result in property damageFire or Explosion Harzard GET to Know Your Water Heater GAS Models Consumer Responsibilities Important Information About This Water HeaterConsumer Information Site Location Location RequirementsPmpey Damage Hazard Clearances and AccessibilityGas Piping Gas Pressure TestingGas Pressure Gas RequirementsExplosion Hazard LP Gas OnlyRoom Unconfined SpaceConfined Space Carbon Monoxide WarningLouvers and Grilles All Air from Inside the BuildingAll Air from Outdoors PER Open Draft Hood InstallationChimney Connection Vent ConnectorsVent Pipe Size MA,NTA,N\ Piping InstallationClosed System/Thermal Expansion Propey Damage HazardCombination Space Heating/Potable Water System Temperature and Pressure Relief Valve Explosion HarzardTemperature & Pressure Relief Valve Relief Valve and Pipe Insulation Some ModelsAIR Solar InstallationGas Supply and Piping Vent Pipe SystemWater System Piping Before Lighting InstructionsBurn Hazard ForyoursafetyreadbeforelightingChecking the Draft ToturnoffgastoapplianceWhite Rodgers Valves Water Temperature RegulationBurner Flames Emergency Shut DownCondensation Operational ConditionsProperty Damage Hazard Draining and Flushing Routine Preventive MaintenanceAnode Rod/Water Odor Thermal Replacement PartsRemoving the Burner from the Manifold/ Burner Assembly ManualreliefReplacing the Thermocouple Replacing the Pilot/Pilot Tube AssemblyCleaning the Combustion Chamber and Flame-arrestor Replacing the Manifold/Burner AssemblyExternal Inspection & Cleaning of the Base-Ring Filter Removing and Replacing the Gas Control Valve/Thermostat Testing the Igniter SystemPiezoelectric Igniter System Possible Causes FVlR System Operational ChecklistThermostat set too high ProblemYES Repair Parts List Listed Parts Kits and Illustrations Page Conditions and Exceptions Limited Residential GAS WarrantyDisclaimers Claim ProcedureInstallation Information Limitation on Implied Warranties

Water Heater specifications

A.O. Smith is a renowned name in the water heating industry, celebrated for its commitment to innovation, quality, and efficiency. Their water heaters are designed to cater to a wide variety of needs, making them suitable for both residential and commercial applications. The main features of A.O. Smith water heaters are tailored to ensure optimal performance, convenience, and reliability.

One of the standout characteristics of A.O. Smith water heaters is their impressive energy efficiency. Many models are equipped with advanced insulation technologies that minimize heat loss, allowing users to save on energy bills while ensuring a consistent supply of hot water. The introduction of high-efficiency gas burners and electric heating elements enhances their energy utilization, which is reflected in their excellent Energy Factor ratings.

A.O. Smith also incorporates smart technology in its water heaters. Many models feature integrated Wi-Fi connectivity, allowing homeowners to monitor and control their water heating system remotely via a smartphone app. This capability enables users to adjust temperature settings, receive maintenance alerts, and track energy usage, providing a new level of convenience and control.

Durability is another hallmark of A.O. Smith water heaters. Constructed with high-quality materials, these units often feature a glass-lined tank that enhances corrosion resistance. Additionally, many models are designed with a robust anode rod that helps prevent rusting, extending the lifespan of the heater and ensuring dependable service for years to come.

Safety features are also a priority for A.O. Smith. Many water heaters come equipped with advanced safety mechanisms, such as automatic shut-off valves, temperature controls, and flame failure detection systems, ensuring safe operation and reducing the risk of accidents.

Different models are available to suit varying space requirements and preferences. A.O. Smith produces traditional tank water heaters as well as modern tankless options, which provide endless hot water on demand, making them ideal for homes needing high hot water consumption. Their versatility guarantees that customers can find the perfect solution tailored to their specific needs.

In conclusion, A.O. Smith water heaters represent a blend of innovation, efficiency, durability, and safety. With various models available that cater to different heating needs and preferences, A.O. Smith continues to remain a trusted choice for consumers seeking reliable hot water solutions.
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