American Water Heater 318935-003 External Inspection & Cleaning of the Flame-trap

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Figure 28

Pilot/Thermopile Assembly

(50K Models)

Pilot Tube

 

Igniter

(Ferrule Nut

 

Connector

Not Shown)

 

Thermopile

Pilot/Thermopile

 

Connectors

 

Assembly

Thermopile

 

Pilot

6.Push the new pilot/thermopile assembly connectors through the opening in the burner door (See Figure 27). Do not to scrape or nick the wires during installation.

IMPORTANT: DO NOT USE PILOT/THERMOPILES WITH FIBERGLASS SLEEVES. The replacement kit does not contain a fiberglass sleeve over the pilot/ thermopile wires.

7.Attach the pilot assembly to the Burner Door Assembly.

8.Position the new thermopile wires through the top opening of the manifold component block (Figure 27). Be sure that the igniter wire is positioned through the middle opening of the manifold component block. Position the pilot tube through the bottom opening of the manifold component block.

9.See “Replacing the Burner Door Assembly” section. NOTE: Use the ferrule nut supplied with the new pilot/ thermopile assembly when connecting the pilot tube to the gas control valve/thermostat.

External Inspection & Cleaning of the Flame-trap

Although not likely to occur, if debris collects on the flame- trap, use a vacuum, compressed air, or a soft bristle brush to remove it.

NOTE: If unable to inspect or clean the flame trap from underneath, follow the “Cleaning the Combustion Chamber and Flame-trap” section instructions.

Figure 29

Flame-trap visual inspection

Flashlight Mirror

Cleaning the Combustion Chamber and Flame-trap

1.Follow procedure outlined in “Removing the Burner Door Assembly”.

2.Use a vacuum cleaner/shop vac to remove all loose debris in the combustion chamber (Figure 30A). Use compressed air to clear any dust or debris that may have accumulated in the flame-trap.

3.Reassemble following the procedure under “Replacing the Burner Door Assembly”.

Replacing the Burner Door Assembly

WARNING

Explosion Hazard

Tighten both burner door screws securely.

Remove any fiberglass between gasket and combustion chamber.

Replace viewport if glass is missing or damaged.

Replace manifold component block if missing or removed.

Replace door gasket if damaged.

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

1.Check the door gasket for damage or imbedded debris prior to installation.

2.Inspect the viewport for damage and replace as required.

3.Insert the burner assembly into the burner compartment, making sure that the burner assembly sits firmly against the burner bracket inside the combustion chamber (Figure 30B).

IMPORTANT: Do not to scrape or nick the wires during installation.

4.Inspect the door gasket and make sure there is no fiberglass insulation between the gasket and the combustion chamber.

5.Replace the two screws which secure the burner assembly to the combustion chamber and tighten securely. There should be no space between the gasket part of the burner door and combustion chamber. IMPORTANT: Do not operate the water heater

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Contents What to do if YOU Smell GAS JuneWater Heater Safety Consumer Responsibilities Important Information About This Water HeaterConsumer Information Unpacking the Water HeaterLocation Requirements Site LocationClearances and Accessibility State of CaliforniaGas Requirements Gas Pressure TestingGas Supply Gas PressureCombustion Air Supply and Ventilation All Air from Inside the Building Unconfined SpaceConfined Space All Air from Outdoors Louvers and GrillesVent Pipe System Draft Hood InstallationVent Connectors Vent Pipe SizeChimney Connection Vertical Exhaust Gas VentPiping Installation Water System PipingClosed System/Thermal Expansion Relief Valve and Pipe Insulation Some Models Temperature and Pressure Relief ValveTemperature & Pressure Relief Valve Discharge LineCombination Space Heating/Potable Water System Solar InstallationSpecial Applications Installation Checklist Lighting Instructions Explosion HazardFor Your Safety Read Before Lighting Burner Flames Water Temperature StackingChecking the Draft Emergency Shut DownWater Temperature Regulation 154 Instantaneous SecondsOperating Modes and Settings Operating the Temperature Control SystemWater Temperature Adjustment Operational ConditionsAnode Rod/Water Odor Routine Preventative Maintenance Draining and FlushingNatural 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 Testing the Igniter System Piezoelectric Igniter SystemFlame Guard Safety System Operational Checklist Removing and Replacing the Gas Control Valve/ThermostatSlow HOT Water Status Light Code Troubleshooting Chart Pilot Light Troubleshooting Chart Repair Parts List Parts DescriptionListed 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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