Installation Requirements

Gas Pressure Requirements

Natural gas models require a minimum gas supply pressure of 4.5” W.C. Propane gas models require a minimum gas supply pressure of 11" W.C. The minimum supply pressure is measured while gas is not flowing (static pressure) AND while gas is flowing (dynamic pressure). The supply pressure (static and dynamic) should never fall below the specified minimum supply pressure. The supply pressure should be measured with all gas fired appliances connected to the common main firing at full capacity. If the supply pressure drops more than 1.5” W.C. as gas begins to flow to the water heater then the supply gas system including the gas line and/or the gas regulator may be restricted or undersized. See Supply Gas Regulator section and Gas Piping section of this manual.

The gas valve on all models has a maximum gas supply pressure limit of 14" W.C. The maximum supply pressure is measured while gas is not flowing (static pressure) AND while gas is flowing (dynamic pressure).

Supply Gas Regulator

The water heater covered by this manual may require the installation of a supply gas regulator. If the supply gas pressure exceeds 14 inches W.C. a supply gas regulator must be used. If the gas supply pressure exceeds 14" W.C. in a multiple water heater installation, each water heater must have its own supply gas regulator. If required, the supply gas regulator shall be rated at or above the Btu/hr input rating of the water heater it supplies.

Supply gas regulators shall have inlet and outlet connections not less than the minimum supply gas line size for the water heater they serve as shown in Table 9. The Maxitrol 325-7L or equivalent is recommended.

Power Supply

The water heaters covered in this manual require a 120 VAC, 1Ø (single phase), 60Hz, 15 amp power supply and must also be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 or the Canadian Electrical Code, CSA C22.1.

Water Temperature Controland Mixing Valves

Water temperature over 125°F (52°C) can cause severe burns instantly resulting in severe injury or death.

Children, the elderly and the physically or mentally disabled are at highest risk for scald injury.

Feel water before bathing or showering.

Temperature limiting devices such as mixing valves must be installed when required by codes and to ensure safe temperatures at fixtures.

Water heated to a temperature which will satisfy clothes washing, dish washing, and other sanitizing needs can scald and cause permanent injury upon contact. Short repeated heating cycles caused by small hot water uses can cause temperatures at the point of use to exceed the water heater’s temperature setting by up to 20°F (11°C).

Some people are more likely to be permanently injured by hot water than others. These include the elderly, children, the infirm and the physically/mentally disabled. Table 6 shows the approximate time-to-burn relationship for normal adult skin. If anyone using hot water provided by the water heater being installed fits into one of these groups or if there is a local code or state law requiring a certain water temperature at the point of use, then special precautions must be taken.

In addition to using the lowest possible temperature setting that satisfies the demand of the application a Mixing Valve should be installed at the water heater (see Figure 10) or at the hot water taps to further reduce system water temperature.

Mixing valves are available at plumbing supply stores. Consult a Qualified Installer or Service Agency. Follow mixing valve manufacturer’s instructions for installation of the valves.

Table 6.

	Water Temperature	Time to Produce 2nd & 3rd
	Water Temperature	Degree Burns on Adult Skin
		Degree Burns on Adult Skin
	180°F (82°C)	Nearly instantaneous
	170°F (77°C)	Nearly instantaneous
	160°F (71°C)	About 1/2 second

	150°F (66°C)	About 1-1/2 seconds
	140°F (60°C)	Less than 5 seconds
	130°F (54°C)	About 30 seconds
	120°F (49°C)	More than 5 minutes

(A)BCG3 85T500-8N, (A)BCG3 85T500-8P specifications

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These water heaters are primarily classified as high-efficiency gas water heaters, designed to meet a variety of usage demands. With a robust design and advanced technological features, they cater to homes and businesses that require reliable and energy-efficient hot water solutions.

One of the most notable features of the (A)BCG3 85T500-8P and (A)BCG3 85T500-8N models is their remarkable thermal efficiency. They are engineered to optimize energy usage, which not only helps reduce utility bills but also minimizes environmental impacts. This energy efficiency is achieved through advanced insulation and heat exchange technologies that maintain water temperature with minimal energy expenditure.

Both models come equipped with a powerful gas burner that allows for rapid heating, making them ideal for high-demand scenarios. The innovative burner technology ensures even heat distribution, significantly reducing recovery time and ensuring that hot water is available whenever needed.

In terms of safety, American Water Heater has incorporated several features to protect users and the unit itself. These include safety shut-off valves and temperature control features that prevent overheating and provide peace of mind.

Durability is another hallmark of these models. Constructed with high-quality materials, they resist the wear and tear commonly associated with traditional water heaters. Furthermore, the design of the (A)BCG3 85T500-8P and (A)BCG3 85T500-8N emphasizes ease of maintenance, allowing for simpler servicing and reduced downtime.

Finally, both models are backed by American Water Heater's commitment to customer satisfaction, supported by comprehensive warranties and reliable customer service. This assurance adds value to their products, making them a preferred choice for consumers seeking efficient and dependable water heating solutions.

In conclusion, the (A)BCG3 85T500-8P and (A)BCG3 85T500-8N models exemplify American Water Heater’s dedication to innovation and efficiency, making them excellent options for anyone in need of advanced water heating technology.