American Water Heater 318935-003 Draining and Flushing, Routine Preventative Maintenance

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Figure 21
Temperature and Pressure Relief Valve
Manual Relief
Valve
Discharge line to drain

MAINTENANCE OF YOUR WATER HEATER

Draining and Flushing

It is recommended that the tank be drained and flushed every 6 months to remove sediment which may build up during operation. The water heater should be drained if being shut down during freezing temperatures. To drain the tank, perform the following steps:

1.Turn off the gas to the water heater at the manual gas shut-off valve.

2.Open a nearby hot water faucet until the water is no longer hot.

3.Close the cold water inlet valve.

4.Connect a hose to the drain valve and terminate it to an adequate drain or external to the building.

5.Open the water heater drain valve and allow all of the water to drain from the tank. Flush the tank with water as needed to remove sediment.

6.Close the drain valve, refill the tank, and restart the heater as directed in this manual.

If the water heater is going to be shut down for an extended period, the drain valve should be left open.

IMPORTANT: Condensation may occur when refilling the tank and should not be confused with a tank leak.

Routine Preventative

Maintenance

At least annually, a visual inspection should be made of the venting and air supply system, piping systems, main burner, pilot burner, and Flame-trap. Check the water heater for the following:

•Obstructions, damage, or deterioration in the venting system. Make sure the ventilation and combustion air supplies are not obstructed.

•Build up of soot and carbon on the main burner and pilot burner. Check for a soft blue flame.

•Leaking or damaged water and gas piping.

•Presence of flammable or corrosive materials in the installation area.

•Presence of combustible materials near the water heater.

•After servicing this water heater, check to make sure it is working properly. (See Operating Your Water Heater section of this manual.)

IMPORTANT: If you lack the necessary skills required to properly perform this visual inspection, you should not proceed, but get help from a qualified person.

Temperature and Pressure Relief Valve

WARNING

Explosion Hazard

If the temperature and pressure relief valve is dripping or leaking, have a qualified person replace it.

Examples of a qualified person include: licensed plumbers, authorized gas company personnel, and authorized service personnel.

Do not plug valve. Do not remove valve.

Failure to follow these instructions can result in death, or explosion.

Manually operate the temperature and pressure relief valve at least once a year to make sure it is working properly. To prevent water damage,

the valve must be properly connected

to a discharge line which terminates at an adequate

drain. Standing clear of the outlet (discharged water may be hot), slowly lift and release the lever handle on the temperature and pressure relief valve to allow the valve to operate freely and return to its closed position. If the valve fails to completely reset and continues to release water, immediately shut off the manual gas control valve and the cold water inlet valve and call a qualified person.

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Contents June What to do if YOU Smell GASWater Heater Safety Unpacking the Water Heater Important Information About This Water HeaterConsumer Information Consumer ResponsibilitiesSite Location Location RequirementsState of California Clearances and AccessibilityGas Pressure Gas Pressure TestingGas Supply Gas RequirementsCombustion Air Supply and Ventilation All Air from Inside the Building Unconfined SpaceConfined Space Louvers and Grilles All Air from OutdoorsVent Pipe Size Draft Hood InstallationVent Connectors Vent Pipe SystemVertical Exhaust Gas Vent Chimney ConnectionWater System Piping Piping InstallationClosed System/Thermal Expansion Discharge Line Temperature and Pressure Relief ValveTemperature & Pressure Relief Valve Relief Valve and Pipe Insulation Some ModelsCombination Space Heating/Potable Water System Solar InstallationSpecial Applications Installation Checklist Explosion Hazard Lighting InstructionsFor Your Safety Read Before Lighting Emergency Shut Down Water Temperature StackingChecking the Draft Burner Flames154 Instantaneous Seconds Water Temperature RegulationOperational Conditions Operating the Temperature Control SystemWater Temperature Adjustment Operating Modes and SettingsAnode Rod/Water Odor Draining and Flushing Routine Preventative MaintenanceNatural Gas Burner Ultra Low Nox Replacement PartsRemoving the Burner Door Assembly Replacing the Pilot/Thermopile Assembly Replacing the Burner Door Assembly External Inspection & Cleaning of the Flame-trapCleaning the Combustion Chamber and Flame-trap Piezoelectric Igniter System Testing the Igniter SystemRemoving and Replacing the Gas Control Valve/Thermostat Flame Guard Safety System Operational ChecklistSlow HOT Water Status Light Code Troubleshooting Chart Pilot Light Troubleshooting Chart Parts Description Repair Parts ListListed Parts Kits and Illustrations Page

318935-003 specifications

The American Water Heater 318935-003 stands out as a reliable option for residential and commercial hot water needs. Manufactured by American Water Heater Company, a brand known for its commitment to quality and innovation, this model integrates several advanced features and technologies to enhance efficiency, durability, and user experience.

One of the defining characteristics of the 318935-003 is its impressive efficiency rating. Designed with energy conservation in mind, it employs a highly efficient heating process that significantly reduces energy consumption. This not only helps in lowering utility bills for homeowners and businesses but also contributes to a more sustainable environment. The water heater meets or exceeds Energy Star guidelines, making it an eco-friendly choice.

The technology used in this model includes a state-of-the-art thermostat and advanced insulation material that ensures optimal heat retention. This dual approach minimizes heat loss, ensuring that hot water is readily available when needed while maintaining consistent temperatures. The adjustable thermostat allows users to customize settings to their preferences, thus improving comfort and efficiency.

Additionally, the 318935-003 features a robust design with high-quality materials that enhance its longevity. Its tank is constructed from durable steel, coated with a corrosion-resistant finish, which ensures that it withstands the test of time and minimizes maintenance needs. The unit is also equipped with a comprehensive safety system that includes a temperature and pressure relief valve, safeguarding against potential malfunctions.

The installation process of the American Water Heater 318935-003 is straightforward, making it accessible for both professionals and DIY enthusiasts. It is compatible with various plumbing systems and configurations, offering flexibility in installation locations. Maintenance is also user-friendly, with accessible components that allow for easy upkeep.

In summary, the American Water Heater 318935-003 embodies the ideal blend of efficiency, durability, and advanced technology. Its energy-efficient design, robust construction, and user-friendly features make it a top choice for anyone looking to fulfill their hot water requirements. Whether for a busy household or a commercial establishment, this water heater delivers consistent performance, ensuring a reliable supply of hot water year-round. Investing in the 318935-003 means investing in long-term satisfaction and efficiency, making it a wise addition to any space.
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