Piezoelectric Igniter System

if the door gasket does not create a seal between the burner door and the combustion chamber.

6.Reconnect the manifold tubing (3/4” wrench), pilot tubing (7/16” wrench), temperature sensor wires, and thermopile wires to the gas control valve/thermostat. (See Figure 22 for the correct position of the thermopile wires.) Do not cross-thread or apply any thread sealant to the fittings. NOTE: If installing a new pilot tube install the provided ferrule nut in the gas control valve/ thermostat at the pilot location, hand tight only. Next, insert the pilot tube into the ferrule nut until it bottoms out. Hold the tube in this position. Tighten the ferrule nut with a 7/16” wrench until the crimp connection seals to the pilot tube. Continue to tighten until the nut is tight in the gas control valve/thermostat.

7.Reconnect the igniter wire.

8.Turn the main gas supply on and check the gas supply connections for leaks. Use an approved noncorrosive leak detection solution. If such a solution is not available, use a mixture of hand dish washing soap and water (one part soap to 15 parts water) or childrens’ soap bubble solution. Bubbles forming indicate a leak. Correct any leak found.

9.Follow the “Lighting Instructions” on page 17.

10.With the pilot and main burner lit, check the manifold tube and pilot tube connections for leaks. Correct any leak found. Use an approved noncorrosive leak detection solution. IMPORTANT: All leaks must be fixed immediately.

11.Replace the outer door

Figure 30A	Flame-trap	Bracket
Combustion Chamber	Flame-trap	Bracket
Door Gasket

Figure 30B

Close-up inside view of the combustion chamber

Bracket

The piezoelectric igniter system consists of the igniter button, electrode, and wire. The pilot is ignited by an electric spark generated when the igniter button is pressed. (See Figure 31). Use only factory authorized piezoelectric igniter parts for replacement.

Figure 31
Gas Igniter Assembly
	Thermopile
	Pilot
VAC
	Electrode
Wire to Electrode	Pilot/Thermopile Bracket
Igniter Button	(Opposite Side)

Testing the Igniter System

Turn off the gas to the water heater at the manual gas shut- off valve. Watch the electrode tip while activating the igniter. A visible spark should jump from the electrode. To avoid shock, do not touch the burner or any metal part on the pilot or pilot assembly. If no spark is visible, check the wire connections and make sure the electrode is not broken. Replace the igniter if defective. Dirt and rust on the pilot or electrode tip can prevent the igniter spark. Wipe clean with a damp cloth and dry completely. Rust can be removed from the electrode tip and metal surfaces by lightly sanding with an emery cloth or fine grit sandpaper.

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.