21
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
Lighting Procedure Without Igniter
Your pellet appliance can be lit manually without
using the automatic igniter by following the
procedure below. If your stove is set up to run
on a thermostat, the thermostat circuit needs
to be closed (as if permanently in the demand
mode). The thermostat wires should be removed
from the rear of the stove and replaced with the
jumper originally supplied with your appliance. If
a jumper is not available the thermostat should
be set to the highest setting. This will keep the
stove in the demand mode. If your automatic
ignition system should ever need troubleshoot-
ing, repair or replacement, please contact your
authorized Lennox Hearth Products dealer.
1. Press the ON/OFF button on the control
board.
2. Wait approximately 2-1/2 minutes while the
pellets prime the UltraGrate™ (the pellets will
stop feeding automatically).
3. Place a small amount of an approved (non-
volatile) fi re starter on top of the pellets in
the UltraGrate™, (see your authorized Lennox
Hearth Products dealer for appropriate fi re
starting products).
DO NOT USE FLAM-
MABLE LIQUIDS TO START YOUR STOVE!
4. Light the “fi re starter” with a match and close
the door.
5. The photoeye will detect that a fl ame is
present and will begin feeding pellets in
approximately 2 minutes.
6. The control board will continue to go through
the normal start-up cycle and the fl ame
should be well established within 10 minutes
from the time the ON/OFF button was initially
pressed. Remember – you are now in manual
mode and heat settings should be selected
to the desired room heat level.
Turning Off Your Stove
Press the stove ON/OFF button to initiate the
shut down cycle. The pellets will stop feeding
and the blowers will continue to run on a timed
cycle. The stove will shut down safely upon
completion of the shut down cycle.
Damper Operation (All Models)
The damper assembly controls the amount of
combustion air that is delivered to the fi rebox.
With the damper adjusted all the way in, the
airfl ow will be at its minimum. As the damper
is moved outward, more air is delivered (see
Damper Location and Adjustment
on
Page
9
).
It will be necessary to monitor the appearance of
the fl ame during the fi rst 4-8 bags of pellets. If
the fl ame is smoky red or orange with evidence
of soot at the top of the fl ame, the damper will
need to be adjusted to deliver more combustion
air (see
Damper Location and Adjustment
on
Page 9
)
. If the fl ame is “short” at the higher
burn rates, or if the pellets are burning up in
the UltraGrate™ before new pellets are fed into
the fi re, the damper may need to be adjusted to
deliver less combustion air.
After the damper is adjusted, re-evaluate the
appearance of the fl ame. It may be necessary
to continue adjusting the damper in increments
until proper combustion is achieved (the fl ame
should become yellow and begin to “dance”).
Once the damper has been properly set (and if the
routine maintenance is performed as needed),
the damper should not require re-adjustment
unless you are changing from a premium grade
pellet to a standard or high ash pellet, in which
case the damper may need to be moved outward
to help prevent the accumulation of ash in the
UltraGrate™.
Damper Adjustment Guideline
Lack of Combustion Air:
By opening the
damper, this will increase combustion air
delivery. Symptoms of insuffi cient combustion
air include; unburned fuel, lazy smoky or red /
orange fl ame, excessive ash or soot, excessive
buildup on glass.
Contributing factors:
• High Altitude – Lack of oxygen
• Restrictive Venting (elbows, horizontal runs,
cold external chimneys, etc.)
• Dirty / Poor Quality Fuel
• Lack of Maintenance
Note:
Excessive amounts of fl y ash built-up in
the UltraGrate™, clinkers in the UltraGrate™
or leakage of air (if the grate is not properly
seated) will starve the fi re for air. See Routine
Maintenance, on
Pages 22 to 28
for information
on cleaning requirements.
Excessive Combustion Air:
By adjusting the
damper to a more closed position will reduce
the combustion air delivery. Symptoms of
excessive air include; fuel burns too quickly
(results in smoking or smoldering pellets),
white to yellow fl ame, etc. If the damper is
open too far, the burning pellets will lift off the
grate and fl y up into the air much like popping
corn does.
Contributing factor:
• Venting system providing excessive draft.
Correct Combustion Air / Proper Burn Char-
acteristics:
When the damper is correctly set, the burning
pellets should move (wiggle) around slightly
and the fl ame should be bright yellow.
Automatic Safety Features
Power Outage:
During a power outage, the stove will shut
down safely. The stove will automatically restart
when power is resumed. The solid state control
board has an internal memory that will retain
heat output and blower speed settings through
voltage interruptions.
A small amount of smoke may leak from
the top of the window glass, the hopper and
from the combustion air intake
, if the stove is
vented horizontally with no vertical pipe. This
will not persist for more than 3 to 5 minutes
and will not be safety hazard. It may set off
your smoke alarm.
Note:
If the area in which you live is prone to
frequent power outages, it is recommended
that a minimum of 8 feet (2-1/2 meters) of
vertical vent pipe be included in a free-standing
installation to induce a natural draft in the event
of a power failure.
Overheating:
A high temperature thermal switch will auto-
matically shut down the stove if it overheats.
Allow up to 45 minutes cooling time before
re-lighting. Keep enough convection air going
through stove to keep it cooling properly
(adjust room air blower speed to a higher
setting), this will ensure long life of the stove.
If the overheating continues, contact your
authorized Lennox Hearth Products dealer for
more information.
