American Water Heater 40-42K BTU, 50-60K BTU Closed System/Thermal Expansion

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Closed System/Thermal Expansion

CAUTION - PROPERTY DAMAGE HAZARD

Periodic discharge of the temperature and pressure relief valve may be due to thermal expansion in a closed water supply system. The water utility supply meter may contain a check valve, backflow preventer or water pressure reducing valve. This will create a closed water system. During the heating cycle of the water heater, the water expands causing pressure inside the water heater

to increase. This may cause the temperature and pressure relief valve to discharge small quantities of hot water. This is an unacceptable condition and must be corrected. To prevent this, it is recommended that a diaphragm-type expansion tank (suitable for potable water) be installed on the cold water supply line. The expansion tank must have a minimum capacity of 1.5 U.S. gallons for every 50 gallons of stored water. Contact the local water supplier or plumbing inspector for information on other methods to control this situation.

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.

For protection against excessive pressures and temperatures, a temperature and pressure relief valve must be installed in the opening marked “T & P RELIEF VALVE” (see Figure 10A.) This valve must be design certified by

a nationally recognized testing laboratory that maintains periodic inspection of the production of listed equipment or materials as meeting the requirements for Relief Valves for Hot Water Supply Systems, ANSI Z21.22. The function of the temperature and pressure relief valve is to discharge water in large quantities in the event of excessive temperature or pressure developing in the water heater. The valve’s relief pressure must not exceed the working pressure of the water heater as stated on the data plate. IMPORTANT: Only a new temperature and pressure relief valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate for the working pressure of the new water heater. Do not place any valve between the relief valve and the tank.

FIGURE 10A

Temperature and Pressure

Relief Valve Installation

Temperature and

Pressure Relief Valve

Discharge line 3/4” min.

Do not cap or plug.

Drain Pan

6” max.

Drain

T&P Valve and Pipe Insulation (Some Models)

1.Locate the T&P Valve on the water heater.

2.Locate the slit running the length of the insulation.

3Spread this slit open and slip it over the T&P Valve. See Figure 10B. Apply gentle pressure to the insulation to ensure it is fully seated on the T&P Valve. Once sealed secure the insulation with a section of tape. IMPORTANT: The insulation or tape should not block or cover the T&P drain opening. Also the insulation or tape should not block or hinder access to the T&P valve manual relief lever.

4.Next locate the hot water (outlet) & cold water (inlet) pipes to the water heater.

5.Select one of the sections of pipe insulation and locate the slit that runs the length of the insulation.

6.Spread the slit open at the base of the insulation and slip it over the cold water (inlet) pipe. Apply gentle pressure along the length of the insulation to ensure it is fully seated around the cold water pipe. Also ensure that the base of insulation is flush with the water heater. Once seated secure the insulation with a section of tape.

7.Repeat steps 5 through 6 for the hot water (outlet) pipe.

Figure 10B

T&P Valve Insulation

T&P Insulation

Manual Relief Lever

T&P Valve

T&P Valve

Drain Line

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Contents Installation Instructions Use & Care Guide Flammable Vapor Ignition Resistant CompliantWater Heater Safety Table Of ContentsInstalling Your GAS Water Heater Consumer InformationConsumer Responsibilities Unpacking the Water HeaterLocation Requirements Site LocationFire or Explosion Hazard Clearances and Accessibility State of CaliforniaGas Pressure Testing Gas SupplyGas Requirements Gas PressureVent Pipe System VentingVent Pipe Material Vent Pipe Connection to BlowerVent Pipe Installation Vent Pipe LengthUS Installations Vent Termination LocationsINLET/OUTLET Vent Terminations Standard Horizontal TerminationVertical Termination Concentric Vent TerminationsPiping Installation Water System PipingTemperature and Pressure Relief Valve Closed System/Thermal ExpansionValve and Pipe Insulation Some Models Wiring Diagram Electrical ConnectionsInstallation Checklist Operating Your Water Heater Lighting InstructionsReplace viewport if glass is Missing or damagedWater Temperature Regulation Temperature limiting valves are availableG. Bottled Propane Models Water Heater OperationSafety Shut-off Operational ConditionsCondensation Water Heater SoundsMaintenance of Your Water Heater Routine Preventive MaintenanceTemperature and Pressure Relief Valve Draining and FlushingReplacement Parts Removing the Burner from the Manifold AssemblyReplacing the Manifold Assembly Removing and Replacing the Gas Control Valve/ThermostatTroubleshooting LED Status Problem SolutionAbove 170F See Anode ROD/WATERODOR, Section Repair Parts Illustration Repair Parts ListListed Parts Kits and Illustrations

40-42K BTU, 50-60K BTU specifications

When it comes to reliable water heating solutions, American Water Heater Company stands at the forefront of the industry, offering a range of models, including those with 50-60K BTU and 40-42K BTU capacity. These water heaters are engineered to deliver consistent and efficient hot water supply for residential and commercial applications.

One of the standout features of American water heaters is their advanced insulation technology. These units come with high-density foam insulation that minimizes heat loss, ensuring that the water remains hot for extended periods. This feature not only improves energy efficiency but also reduces operating costs for users.

For the 50-60K BTU models, American Water Heater employs a powerful gas burner system that offers quick recovery rates, making it an ideal choice for larger households or businesses that require a high volume of hot water. This capability ensures that there is always an adequate supply of hot water for multiple simultaneous tasks, such as showering, washing dishes, and laundry.

On the other hand, the 40-42K BTU models provide an excellent balance between performance and energy conservation, making them suitable for medium-sized homes. These units are equipped with electronic ignition systems that enhance reliability and safety while providing a user-friendly experience. The electronic igniter eliminates the need for a pilot light, reducing gas consumption and increasing energy efficiency.

Durability is another hallmark of American Water Heater products. Constructed with robust materials, these units are designed to withstand the rigors of daily use while also resisting corrosion. This ensures a longer lifespan and reduces maintenance costs over time.

Safety features are also a priority for American Water Heater. Many models incorporate advanced safety systems, including temperature and pressure relief valves, ensuring user safety and compliance with building codes.

In terms of technology, American Water Heaters often include features that promote user convenience, such as programmable thermostats and easy-to-read digital displays. These allow homeowners to customize their hot water settings to fit their lifestyle, optimizing both comfort and energy efficiency.

Overall, American Water Heater’s 50-60K BTU and 40-42K BTU models epitomize quality, efficiency, and innovation in water heating technology, making them a preferred choice for consumers seeking effective and dependable hot water solutions.
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