American International PG10*34-130-2NV or 2PV Gas Supply And Piping, Gas Requirements, Gas Piping

GAS SUPPLY AND PIPING

Explosion Hazard

Use a new AGA or CSA approved gas supply line.

Install a shut-off valve.

Do not connect a natural gas water heater to a L.P. Gas Supply.

Do not connect an L.P. gas water heater to a Natural Gas Supply.

Failure to follow these instructions can result in death, explosion, or carbon monoxide poisoning.

Gas Requirements

Read the data plate to be sure the water heater is made for the type of gas being used. This information will be found on the data plate located on the front of the water heater. If the information does not agree with the type of gas available, do not install or operate the water heater. Call your dealer.

Note: An odorant may be added by the gas supplier to the gas used by this water heater. This odorant may fade over an extended period of time. Do not depend upon this odorant as an indication of leaking gas.

Gas Piping

The gas piping must be installed according to all local and state codes or in absence of local and state codes with the “National Fuel Gas Code”, ANSI Z223.1 (NFPA 54)- latest edition. Canadian installations must be performed in accordance with CAN/CGA-B149. Note: If using a flexible gas connector, make sure its rating tag matches or exceeds the input of the water heater.

Tables 2, 3A, and 3B on page 20 are provided as a sizing reference for commonly used gas pipe materials. Consult the “National Fuel Gas Code” for the recommended gas pipe size of other materials. Follow the instructions below and reference figure 19 for gas piping installation.

1.Install a readily accessible manual shut-off valve in the gas supply line as recommended by the local utility. Know the location of this valve and how to turn off the gas to this unit. Note: DO NOT pipe across clean-out port (100 gal. only.)

2.Install a drip leg as shown. The drip leg must be no less than 3 inches long for the accumulation of dirt, foreign material and water droplets.

3.Install a ground joint union between the water heater and the manual shut-off valve. This is to allow easy servicing.

4.Turn the gas supply on and check for leaks. Use a chloride-free soap and water solution (bubbles forming indicate a leak) or other approved method.

Note: Units with BTU/Hr inputs of 175,000 and above must have a minimum of 3/4” NPT gas pipe supplied to the water heater.

Figure 19: Gas Piping Installation

Gas Pressure

Important: The gas supply pressure must not exceed the maximum supply pressure as stated on the water heater’s data plate. Minimum supply pressure should also be maintained per the data plate.

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