Lennox DT3025 Installation Instructions Manual page 22

WARNING
If you do not follow these instructions exactly, a fire
or explosion may result causing property damage,
personal injury or loss of life.
PLACING FIREPLACE INTO OPERATION
(Millivolt Valves with Piezo Ignitor)
Fireplaces which include a millivolt valve are equipped
with a pilot which must be lit by a Piezo ignitor (red ignitor
button). When lighting the pilot, follow these instructions
exactly.
GAS VALVE OPERATION - Millivolt Valve (Figure 33)
1 - STOP! Read the safety information at the beginning
of this section.
2 - Turn OFF the burner switch (if applicable), or set the
thermostat to the lowest setting (if applicable).
3 - Turn off all electrical power to appliance.
4 - Open the bottom panel. Push in gas control knob
slightly and turn clockwise
NOTE - Knob cannot be turned from PILOT to OFF
unless knob is pushed in slightly. Do not force.
5 - Wait five (5) minutes to clear out any gas. If you then
smell gas, STOP! Immediately call your gas supplier
from a neighbor's phone. Follow the gas supplier's in-
structions. If you do not smell gas go to next step.
6 - Press partially and turn gas valve knob counterclock-
wise to PILOT.
MILLIVOLT GAS VALVE
(Optional manually-modulated gas valve shown)
HI/LO FLAME
ADJUSTMENT KNOB
PILOT
ADJUSTMENT
SCREW
GAS VALVE SHOWN IN PILOT POSITION
FIGURE 33
7 - Push control knob in until it stops and hold knob in this
position. Immediately light the pilot by pushing the red
Piezo ignitor button. Continue to press control knob for
25 seconds after the pilot is lit. Release knob. It should
pop back up. Pilot should remain lit. If pilot goes out, re-
peat steps 5 through 10.
8 - Press partially and turn gas valve knob counterclock-
wise to ON.
9 - Restore electrical power to appliance (if applicable).
to OFF.
MANIFOLD
SUPPLY
GAUGE PORT
GAUGE PORT
PIEZO
PUSH-BUTTON
IGNITOR
10- Turn ON the burner switch (if applicable), or set the
thermostat to the desired setting (if applicable).
11- Close the bottom panel.
NOTE - If gas valve is turned to OFF from ON or PILOT
while appliance is in operation, gas valve will latch in OFF
position for 25 seconds.
12- If the appliance will not operate, follow the instructions
"Turning Off Gas to Unit" and call your service technician
or gas supplier.
TURNING OFF GAS TO UNIT
1 - Turn OFF the burner switch (if applicable), or set the
thermostat to the lowest setting (if applicable).
2 - Turn off all electrical power to appliance.
3 - Open the bottom panel.
4 - Push in gas control knob slightly and turn clock-
wise
5 - Close the bottom panel.
PLACING FIREPLACE INTO OPERATION
Fireplaces equipped with an ignition device which will au-
tomatically light the burner. Do not try to light the burner
by hand. Follow these instructions exactly.
GAS VALVE OPERATION- Electronic Valve (Figure 34)
1 - STOP! Read the safety information at the beginning
of this section.
2 - Turn OFF the burner switch (if applicable), or set the
thermostat to the lowest setting (if applicable).
3 - Turn off all electrical power to the appliance.
4 - This appliance is equipped with an ignition device
which automatically lights the burner. Do not try to
light the burner by hand.
5 - Wait five (5) minutes to clear out any gas. If you then
smell gas, STOP! Immediately call your gas supplier
CONTROL
from a neighbor's phone. Follow the gas supplier's in-
KNOB
structions. If you do not smell gas go to next step.
(Optional manually-modulated gas valve shown)
HI/LO FLAME
ADJUSTMENT
ADJUSTMENT SCREW
6 - Restore electrical power to the appliance.
7 - Turn ON the burner switch (if applicable), or set the
thermostat to the desired setting (if applicable).
P a g e 2 2
to OFF. Do not force.
(Electronic Gas Valves)
ELECTRONIC GAS VALVE
MANIFOLD
GAUGE PORT
KNOB
PILOT
FIGURE 34
SUPPLY
GAUGE PORT