Emerson 37C73U Water Heater User Manual


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3
TO LIGHT APPLIANCE
A.  Gasvalve/thermostatwithoutignitor(Ifcontrolhasan
ignitor,proceedtoSectionB).
1. Set control to lowest setting by turning the water
temperature dial clockwise (
) to the "PILOT
LIGHTING" position. DO NOT FORCE.
2. Turn gas control knob clockwise to "OFF". See
FIGURE A.
NOTE:Gascontrolknobmustbedepressed
slightlytoturnfrom"PILOT"to"OFF".Donotuse
toolsorexcessiveforce.
3. Wait at least five (5) minutes to clear out any gas, and
then smell around the appliance area. If you smell gas,
STOP! Follow instructions "Whattodoifyou
smellgas"on the first page of this instruction sheet. If
you do not detect gas, continue with the next step.
4. Remove inner and outer burner doors located on the
water heater under gas control unit.
5. Find pilot – follow small metal tubes from gas control. The
pilot is located near the main burner. See FIGURE D.
6. Turn gas control knob counterclockwise to "PILOT".
See FIGURE B.
7. Depress control knob all the way and hold down. Im-
mediately light the pilot with a match. Continue to hold
knob down for approximately one (1) minute after pilot
is lit. Release knob and it will pop back up. Pilot should
remain lit. If pilot goes out, repeat steps 2, 3, 6 and 7.
• Ifknobdoesnotpopupwhenreleased,turnknob
clockwise to "OFF". STOP and immediately call
your service technician or gas supplier.
• Ifthepilotwillnotstaylitafterseveraltries,turn
gas control knob to "OFF" and call your service
technician or gas supplier.
8. Replace inner and outer burner doors.
9. At arm's length away, turn gas control knob counter-
clockwise to the full "ON" position, FIGURE C.
10. Align the water temperature dial mark (
) with the
temperature pointer on the cover. This mark, indicative
of approximately 120
o
F, is the preferred starting point.
If hotter water is desired, see TEMPERATURE REGU-
LATION on page 4.
11. Check for leaks at the pilot and main burner fittings
on the gas control with the main burner firing. Use a
soapy water solution. If a leak is detected, turn the gas
supply off and make repairs.
GAS
CONTROL
KNOB
WATER
TEMPERATURE
DIAL
TEMPERATURE
POINTER
Figure2.GasControlKnoband
WaterTemperatureDial
PILOT THERMOCOUPLE
MAIN BURNER
O
N
O
F
F
P
I
L
O
T
FIGURE B
“PILOT” POSITION
O
N
O
F
F
P
I
L
O
T
FIGURE C
“ON” POSITION
O
N
O
F
F
P
I
L
O
T
O
N
O
F
F
P
I
L
O
T
FIGURE A
“OFF” POSITION
FIGURE D
B.  GasValve/Thermostatwithignitor.
1.
STOP! Read the safety information on the label.
2. Set the thermostat to lowest setting (PILOT LIGHT-
ING). Turn thermostat dial fully clockwise (
) until
it stops.
3. Push the gas control knob down slightly and turn
clockwise (
) to "OFF", see FIGURE A.
NOTE: Knob CANNOT be turned from "PILOT" to
OFF" unless it is pushed down slightly. Do not force.
4. Remove the outer burner door located below the gas
control.
5. Wait five (5) minuted to clear our any gas. If you then
smell gas,
STOP! Follow instructions "Whattodo
ifyousmellgas"on the first page of this instruction
sheet. If you do not detect gas, continue with the next
step.
6. This unit is equipped with a push button pilot ignitor,
which is used to light the pilot. Locate the ignitor on the
gas control.
7. Turn gas control knob counterclockwise (
) to
"PILOT", see FIGURE B.
8. The pilot is located on the right side of the burner. It
can be located by looking through the glass view port
while pressing the piezo ignitor button several times.
Look for a spark at the pilot location, FIGURE D.
9. Once the pilot has been found, push the gas knob all
the way down. Immediately press the pilot ignitor but-
ton rapidly 4 to 5 times. If the pilot will not light, repeat
step 3 through 9.
10. Continue to hold the gas control knob down for about
one (1) minute after the pilot is lit. Release the gas
control knob and it will pop back up. Pilot should
remain lit. If it goes out, repeat step 3 through 9. It may
take several minutes for air to clear the lines before the
pilot will light.
• Ifthepilotdoesnotpopupwhenreleased,stop
and immediately call your service technician or
gas supplier.
• Ifthepilotwillnotstaylitafterseveraltries,turn
the gas control knob clockwise (
) to "OFF"
and call your service technician or gas supplier.
11. Once the pilot flame is established replace the outer
burner door.
12. At arms length away, turn gas control knob counter-
clockwise (
) to "ON". See FIGURE C.
13. Set the thermostat to desired setting. See TEMPERA-
TURE REGULATION on page 4.
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