Installation Checklist

Important Information About This Water Heater

This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable vapor ignition incident. The new technology used in meeting these standards makes this product more sensitive to installation errors. Please review the following checklist and make any required installation upgrades or changes.

Questions? Reference the number on the cover of this manual for service information.

Water Heater Location

Water heater location is important and can affect system performance. Please check the following:

□Installation area free of corrosive elements and flammable materials.

□Centrally located with the water piping system. Located as close to the gas piping and vent pipe system as possible.

□Located indoors and in a vertical position. Protected from freezing temperatures.

□Proper clearances from combustible surfaces maintained and not installed directly on a carpeted floor.

□Provisions made to protect the area from water damage. Metal drain pan installed and piped to an adequate drain.

□Sufficient room to service the water heater. See “Clearances and Accessibility” section of this manual.

□Water heater not located near an air moving device.

□Is the installed environment dirty (excessive amounts of lint, dirt, dust, etc.)? If so, the flame arrestor located on the bottom of the water heater will need to be cleaned periodically. Refer to the “Maintenance of your Water Heater” section of this manual for information on cleaning the flame-trap.

Combustion Air Supply and Ventilation

Check for sufficient combustion air supply. Insufficient air for the combustion of gas will result in the flame becoming “lazy”, thereby allowing the burner operating temperature to decrease. This causes the gas control to shut off the gas supply. Is the water heater installed in a closet or other small, enclosed space? If so:

□Are there openings for make-up air to enter and exit the room/area?

□Are the openings of sufficient size? Remember, if there are other gas-fired or air-consuming appliances in the same room, you need more make-up air. Refer to the “Location Requirements” section of this water heater manual for specific requirements.

Fresh air not taken from areas that contain negative pressure producing devices such as exhaust fans, fireplaces, etc.

□Is there a furnace/air handler in the same room space as the water heater? If so, has a return air duct system been attached that exits the room? If so, check for leaks on the air duct system. If no air duct system is present, correct immediately by contacting a local Heating, Ventilation, Air- Conditioning & Refrigeration (HVAC-R) authorized service provider.

□Fresh air supply free of corrosive elements and flammable vapors.

□Fresh air openings sized correctly with consideration given to the blocking effect of louvers and grilles.

□Ductwork is the same cross-sectional area as the openings.

Vent Pipe System

Check for proper drafting at the water heater draft hood. Refer to the “Checking the Draft” section of this manual for the test procedure. If the procedure shows insufficient draft is present, please check the following.

□Draft hood properly installed.

□Vent connectors securely fastened with screws and supported properly to maintain six inch clearance.

□Vent connector made of approved material and sized correctly.

□Vent pipe system installed according to all local and state codes or, in the absence of local and state codes, the “National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-current edition.

□Flue baffle properly positioned in the flue tube.

□Check the vent system for restrictions/obstructions and check the vent termination height. Refer to the “Air Supply and Ventilation” section of this water heater manual for specific requirements.

□Recheck for sufficient combustion air supply.

Water System Piping

□Temperature and pressure relief valve properly installed with a discharge line run to an open drain and protected from freezing.

□All piping properly installed and free of leaks.

□Heater completely filled with water.

□Closed system pressure build-up devices installed.

□Mixing valve (when applicable) installed per manufacturer’s instructions (see “Water Temperature Regulation” section).

Gas Supply and Piping

□Gas type is the same as that listed on the water heater data plate.

□Gas line equipped with shut-off valve, union, and drip leg.

□Adequate pipe size and approved pipe material.

□An approved noncorrosive leak detection solution used to check all connections and fittings for possible gas leaks. If such a solution is not available, use a mixture of dish washing soap and water (one part soap to 15 parts water) or children’s soap bubble solution. Bubbles forming indicate a leak. Correct any leak found.

TEFLON ® is a registered trademark of E.I. Du Pont De Nemours and Company.

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.