c.Remove the pressure regulator cover screw (Figure 16) and adjust the pressure by turning the adjusting screw with a small screwdriver. In this example, with heater running on natural gas, do not exceed 4.0" (0.996 kPa) Water Column.
Clockwise to increase gas pressure and input rate.
Counterclockwise to decrease gas pressure and input rate.
d. “Clock” the meter as in step (b) above.
e.Repeat steps (c) and (d) until the specified input rate is achieved.
f.Turn the manual gas valve to “OFF”. Replace the pressure regulator cover screw. Remove the pressure gauge or manometer from the manifold pressure tap. Replace the set screw in the manifold pressure tap. If the gas pressure regulator cannot be adjusted to give the full input rating with sufficient gas pressure at the valve, check to ensure the unit is equipped with the correct orifice.
LIGHTING AND OPERATION INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY A FIRE OR EXPLOSION 
MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
A.This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.
B.BEFORE OPERATING 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 telephone in your building.
•Immediately call your gas supplier from a neighbor’s
telephone. 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 fire or explosion.
D.Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
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| OPERATING INSTRUCTIONS |
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1. | STOP! Read the safety information above on this | 9. Set thermostat to desired setting. | ||||
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| 10. If the appliance will not operate, follow the instructions | |
2. | Set thermostat to lowest setting. |
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| technician or gas supplier. | |||||
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3. | Turn off all electric power to the appliance. |
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4. | This appliance is equipped with an ignition device which |
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| automatically lights the burner. Do not try to light the |
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| burner by hand. |
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5. | Push in gas control knob slightly and turn clockwise |
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| to “OFF”. |
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6. | Wait five (5) minutes to clear out any gas. If | you then |
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| smell gas, | STOP! Follow “B” in the safety information |
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| above on | this label. If you don’t smell gas, go on to |
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| the next step. |
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7. | Turn gas control knob counterclockwise | to “ON”. |
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8. | Turn on all electric power to the appliance. |
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FOR YOUR SAFETY READ BEFORE OPERATING
1.Set the thermostat to lowest setting.
2.Turn off all electric power to appliance if service is to be performed.
3.Push in gas control knob slightly and turn clockwise 
to “OFF”. Do not force.
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