21
Millivolt System, Lighting, & Burner Control
Lighting Instructions
1. Open access grill on bottom.
2. Push in gas control knob slightly and turn clockwise to “OFF”.
NOTE: Knob cannot be turned from “PILOT” to “OFF” unless knob is
pushed in slightly. Do not force.
3. Wait five (5) minutes to clear out any gas remaining in burner
combustion chamber.
4. Turn knob on gas control counter-clockwise to “PILOT”.
5. Push in control knob all the way and hold in. Immediately light the
pilot with piezo-electric ignitor while continuing to push knob in for
one (1) minute. Release knob. Pilot should remain lit. If it goes out,
repeat steps 2 through 5 until pilot remains lit.
– If knob does not pop up when released, stop and immediately call
your service technician or gas supplier.
– If pilot will not stay lit after several tries, turn the gas control
knob to “OFF” and call your service technician or gas supplier.
6. Turn gas control knob counter-clockwise to “ON”.
7. All models are supplied with a wall switch that turns the main
burner on or off. If main burner does not light immediately when
you turn the gas control valve to “ON” ensure that the wall switch is
in the “ON” position.
NOTE: The “On/Off” wall switch may be replaced with a wall
thermostat allowing main burner to light and turn off automatically
depending upon thermostat setting and room temperature.
8. Adjust the gas flow (flame height) with the HI/LOW gas control
knob on valve.
9. Close control access grill.
Pilot Burner
Adjustment
1. Remove pilot adjustment cap.
2. Adjust pilot screw to provide
proper sized flame.
3. Replace pilot adjustment cap.
4. Leak Test.
To Turn Off Gas Appliance
Turn off all electric power to the appliance if service is to be
performed. Open control access grill.
Push in gas control knob slightly and turn clockwise to “OFF”. Do not
force. Close control access grill.
Caution: Do Not Wire 120 Volt Power To Millivolt Switches Or Thermostats.
3/8 - 1/2 inch
THERMOCOUPLE
OR GENERATOR
PILOT
PILOT
GENERATOR
THERMOCOUPLE
TO PIEZO
GAS
INLET
SIT VALVE
TO WALL SWITCH
OR TO
THERMOSTAT
