Index

The gas supply lines must meet all requirements of the National Fuel Gas Code (ANSI Z223.1-Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code (Latest Edition).

The minimum permissible gas supply pressure for the purpose of input adjustment is one (1.0) inch (0.25 kPa) water column above the operating manifold pressure. See the rating plate and gas valve for the manifold pressure and gas type. The maximum permissible gas supply pressure is fourteen (14.0) inches (3.5 kPa) water column for natural gas and liquefied petroleum gases/propane gas.

1.Connect this water heater only to the type of gas (Natural or Propane gas) as shown on the rating plate. Use clean black iron pipe or equivalent material approved by local codes and ordinances. (Dirt and scale from the pipe can enter the gas valve and cause it to malfunction). The inlet gas line must have a minimum length of three (4) inches (7.6 cm) drip leg (sediment trap) installed as close to the water heater’s gas valve as possible. A ground joint union must be installed in the gas supply line, as close to the water heater as possible, feeding the water heater to permit servicing of the water heater. Compounds used on the threaded joints of the gas piping must be resistant to the action of liquefied petroleum gases/propane gas. DO NOT apply pipe dope to the gas valve inlet and make certain that no pipe dope has become lodged in the inlet screen of the gas valve. Extreme care shall be taken to ensure no pipe dope enters the gas valve and to avoid excessive torque when tightening the gas supply line to the gas valve. Excessive torque may result in cracking of the gas valve housing. The suggested maximum torque is 31.5 ft. lbs.

(4.4 kg-m). The manufacturer of this water heater will not be liable for any damage or injury caused as a result of a cracked gas inlet as a result of excessive torque.

2.This water heater and its gas connection must be leak tested before placing the water heater in operation. Check for gas leaks with a soap and water solution and a brush or a commercial leak detector fluid.

NEVER USE A MATCH OR OPEN FLAME FOR TESTING!

CAUTION

The water heater and individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of 1/2 psi (3.5 kPa). The water heater must be isolated from the gas supply piping system by closing its manual shutoff valve during any pressure testing of the gas supply system at test pressures equal to or less than 1/2 psi (3.5 kPa). The supply line must be capped when not connected to the water heater.

GENERAL OPERATION

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American Water Heater GAS-FIRED COMMERCIAL WATER HEATER instruction manual General Operation
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GAS-FIRED COMMERCIAL WATER HEATER specifications

American Water Heater offers a range of high-performance gas-fired commercial water heaters designed to meet the needs of a variety of applications, including restaurants, hotels, and industrial facilities. Renowned for their reliability and efficiency, these water heaters are engineered to provide large volumes of hot water consistently and efficiently.

One of the standout features of American Water Heater's gas-fired models is their robust construction. Built with durable materials, these heaters are designed to withstand the rigors of daily use in demanding commercial environments. The units typically have a high-quality glass-lined tank that enhances protection against corrosion, prolonging the water heater's lifespan and ensuring longevity.

Efficiency is at the core of American Water Heater's design ethos. Many models are equipped with advanced burner technologies that promote higher thermal efficiency. Some units boast energy factors exceeding industry standards, minimizing fuel consumption while maximizing output. This not only reduces operational costs but also contributes to environmental sustainability by lowering carbon emissions.

Among the innovative technologies incorporated into these water heaters is a precise temperature control system, which allows for the accurate regulation of hot water supply. This feature is crucial in commercial settings where the demand for hot water can fluctuate significantly. Moreover, features like digital diagnostics and integrated control systems make it easier for operators to monitor performance and troubleshoot problems swiftly, thus reducing downtime.

Safety is paramount in any gas-fired appliance, and American Water Heater prioritizes this with features such as automatic shutoff valves and flame failure protection systems. These safety mechanisms ensure that the units operate reliably while providing peace of mind to users.

American Water Heater's gas-fired commercial water heaters also offer a range of capacities, catering to different operational needs. Models are available in various sizes, ensuring that no matter the volume of hot water required, there is a solution that fits.

In conclusion, American Water Heater's gas-fired commercial water heaters combine durability, efficiency, and advanced technology, making them suitable for a wide array of applications. With their focus on safety and performance, these units stand out as a top choice for businesses seeking a reliable hot water solution.
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