American Water Heater 318935-003 installation instructions Water Heater Safety

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WATER HEATER SAFETY

Your safety and the safety of others are very important.

We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.

This is the safety alert symbol.

This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.” These words mean:

Indicates an imminently hazardous situation which, if not avoided, will result in death or injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the instructions are not followed.

Important Instructions

•Do not use this appliance if any part has been under water. Immediately call a qualified person. Water heaters sub- jected to flood conditions or any time the gas controls, main burner or pilot have been submerged in water require replacement of the entire water heater.

•Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable and can ignite when exposed to a spark or flame. To prevent the possibility of injury under these conditions, we recommend the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance which is connected to the hot water system. If hydrogen is present, there will probably be an unusual sound such as air escaping through the faucet as water begins to flow. Do not smoke or have any open flame near the faucet at the time it is open.

The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of potential exposure to such substances.

WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

This appliance can cause low-level exposure to some of the substances included in the Act.

This product is certifi ed to comply with a maximum weighted average of 0.25% lead content as required in some areas.

Table Of Contents

PAGE

Water Heater Safety

1-2

Installing Your Gas Water Heater

3-16

Unpacking the Water Heater

3

Location Requirements

4-5

Gas Supply

6-7

Combustion Air Supply and Ventilation

7-11

Water System Piping

12-13

Temperature & Pressure Relief Valve

14

Special Applications

15

Installation Checklist

16

Operating Your Water Heater

17-21

Lighting Instructions

17

Operating the Temperature Control System

20

Operational Conditions

21

Maintenance of Your Water Heater

22-27

Troubleshooting Charts

28-30

Repair Parts Illustration

31-32

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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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