American Water Heater 317994-002 Manual De Usuario

9

Manual Gas

Shut-Off Valve

Install a readily acces-
sible manual shut-off 
valve in the gas supply 
line as recommended 
by the local utility.

Check with local utility
for minimum height.

6” Max. Air Gap

Suitable Drain

    Discharge Pipe

(Do Not plug or cap)

3” Minimum

Drip Leg

Ground Joint Union

IMPORTANT: The gas supply pressure must not exceed the 

maximum supply pressure as stated on the water heater’s rating 

plate. The minimum supply pressure is for the purpose of input 

adjustment.

IMPORTANT: This water heater and its gas connection must 

be leak tested before placing the appliance in operation.
• 

If the code requires the gas lines to be tested at a 

pressure exceeding 14” W.C., the water heater and its 

manual shut-off valve must be disconnected from the gas 

supply piping system and the line capped.

• 

If the gas lines are to be tested at a pressure less than 

14” W.C., the water heater must be isolated from the gas 

supply piping system by closing its manual shut-off valve.

NOTE: Air may be present in the gas lines and could prevent 

the burner from lighting on initial start-up. The gas lines should 

be purged of air by a qualified technician after installation of 

the gas piping system. While purging the gas piping system 

of air, insure that the fuel is not spilled in the area of the 

water heater installation, or any source of ignition (NOTE: 

spilled fuel may trip the FV Sensor preventing heater from 

starting).  If the fuel is spilled while purging the piping 

system of air follow the “WHAT TO DO IF YOU SMELL 

GAS” instructions on the cover of this manual.

IMPORTANT: Read the rating plate to be sure the water 

heater is made for the type of gas you will be using in 

your home. This information will be found on the rating 

plate located near the gas control valve/thermostat. If the 

information does not agree with the type of gas available, 

do not install or light. Call your dealer.
NOTE: An odorant is 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.

The gas piping must be installed according to all local and 

state codes or, in the absence of local and state codes, the 

“National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-current 

edition.
Tables 1 and 2 on the following page provide a sizing 

reference for commonly used gas pipe materials. Consult 

the “National Fuel Gas Code” for the recommended gas 

pipe size of other materials.
NOTE: Use pipe joint compound or teflon tape marked as 

being resistant to the action of petroleum [Propane (L.P.)] 

gases (See Figure 3.)
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.

2.  Install a drip leg (if not already incorporated as part of 

the water heater) as shown. The drip leg must be no 

less than three inches long for the accumulation of dirt, 

foreign material, and water droplets.

3.  Install a ground joint union between the gas control 

valve/thermostat and the manual shut-off valve. This 

is to allow easy removal of the gas control valve/ 

thermostat.

4.  Turn the gas supply on and check for leaks. Test all 

connections by brushing on an approved noncorrosive 

leak-detection solution. Bubbles will show a leak. 

Correct any leak found.