Lighting Instructions - A.O. Smith DIRECT VENTED GAS MODELS Installation And Operating Manual

Residential gas water heaters
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A. This appliance has a pilot which is lit by a piezoelectric spark gas ignition system. Do not open the inner door
of the appliance and try to light the pilot by hand.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or
turn by hand, don't try to repair it, call a qualified service technician. Force or attempted repair may result in a
fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately contact a qualified installer or service
agency to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced!
Gas Control &
Temperature Knob
GAS CONTROL
1.
STOP! It is imperative that you read all safety warnings before lighting the pilot.
2. Turn the gas control/temperature knob counterclockwise
3. Wait ten (10) minutes to clear out any gas. If you then smell gas,
information above on this label. If you do not smell gas, go to
4. Turn the gas control/temperature knob clockwise
5. Press the gas control/temperature knob all the way in and hold it in. The knob should travel in about 1/4 inch if
it is set to "PILOT" correctly. While holding the gas control/temperature knob in, click the igniter button
continuously (about once a second) for up to 90 seconds or until status light begins to blink. The pilot flame
should envelop the thermopile. See Figure 'D'.
6. When the status light starts blinking, release the gas control/temperature knob. Set the gas
control/temperature knob to the desired setting. See Figure 'C'.
• If the status light does not start blinking within 90 seconds, repeat steps 2 through 5 up to THREE (3) times,
waiting 10 minutes between lighting attempts.
• The circuitry in this advanced gas valve requires that you wait 10 minutes between lighting attempts.
• If the status light turns a solid color, release the gas control/temperature knob and repeat steps 2 through 5
(waiting 10 minutes before attempting to relight the pilot). If the status light does not start blinking after
three lighting attempts, turn the gas control/temperature knob to the "OFF" position and call a qualified
service technician or your gas supplier.
DANGER: Hotter water increases the risk of scald injury. Consult the instruction manual before
DANGER:
changing the temperature setting.
Refer to the Lighting Instructions in the Installation Manual for more detailed troubleshooting information.
1. Turn the gas control/temperature knob counterclockwise
blinking and stay on for a short time after the water heater is turned off. See Figure 'A'.
28

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING:
If you do not follow these instructions exactly, a fire or explosion may
result causing property damage, personal injury or loss of life.
BEFORE LIGHTING: ENTIRE SYSTEM MUST BE FILLED
WITH WATER AND AIR PURGED FROM ALL LINES
LIGHTING INSTRUCTIONS
FIGURE 'A'
Status
120°F
120°F
Light
Mark
Igniter
Button
"OFF" POSITION
TO TURN OFF GAS TO APPLIANCE
FIGURE 'B'
FIGURE 'C'
120°F
Mark
Mark
"PILOT" POSITION
"ON" POSITION
CONTROL KNOB
to the "OFF" position.
STOP! Follow " B" in the safety
the next step.
to "PILOT". See Figure 'B'.
to the "OFF" position. The status light will stop
www. hotwater .com
FLAMMABLE
FIGURE 'D'
Pilot Flame
Main Burner
Thermopile
329352-000

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