Fuel - Lennox Cascade Installation And Operation Manual

Filling the Hopper
To fill the hopper when stove is off:
1. Lift the hopper lid to it's full opened position.
2. Fill the hopper with pellets.
3. Check to make sure there are no remaining pellets on top of the
hopper that may prevent the hopper lid from fully closing.
4. Close Hopper lid.
To fill the hopper when stove is in operation:
1. Repeat steps 1 thru 4 above.
2. When finished, check the red Auger "On" Light on the control panel
to verify that the stove is still in normal heating mode. The Auger
"On" Light indicates when there is power to the auger motor. Under
normal operation, this light will blink on and off.
3. If the Auger "On" Light on the control panel is off, the hopper lid
has been open too long and unit has gone into shut-down mode. To
relight, follow lighting instructions on Page 17.
Caution: Failure to ensure pellets in the UltraGrate remain
burning after re-fueling may result in smoke escaping from
the unit.
Lighting
Follow instructions on Page 17.
Automatic Safety Features
Power Outage: During a power outage, the stove will shut down safely.
It will not automatically restart when the power is restored. However, a
momentary power interruption may not shut your stove down.
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 a safety hazard. It may set off your smoke
alarm. To re-light the stove, follow the normal procedure for starting
your stove.
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 the installation to induce a natural draft in the
event of a power outage.
Overheating: A high limit thermal switch will automatically shut down
the stove if it overheats. The stove will need to be manually re-lit. Allow
up to 45 minutes cooling time before re-lighting. If the overheating
continues, contact your authorized Lennox Hearth Products dealer for
more information.

FUEL

The use of unapproved, dirty, wet and / or high salt
content fuel will void the warranty!
Fuel Specifications - Using the Ultragrate™ burn system, this appliance
has been designed to burn wood residue pellets only (with up to 2% ash
content). Agricultural pellets (i.e. corn, alfalfa etc.) are not permitted to
be burned in the stove. Dirty fuel will adversely affect the performance of
the stove. The pellet fuel should meet P.F.I. (Pellet Fuel Institute) standards
for standard grade or premium grade residential pellet fuel. If the pellet
fuel meets these standards, it will be printed on the bag. Any questions
regarding pellet fuel can be answered at the Pellet Fuels Institute (PFI),
www.pelletheat.org.
Pellet Feed/Pellet Size - The pellet feed system is designed to handle a
wide range of pellet sizes up to a maximum of 5/16" diameter. Different
pellets may feed at considerably different rates. You may notice a differ-
ence in the burn if you change pellet fuel sizes. The longer the pellet, the
slower it will feed and vice versa. If the stove will not stay burning at the
minimum fuel feed setting, those particular pellets may not be feeding
fast enough. If this happens, reduce the amount of combustion air by
adjusting the damper. See Page 8 before adjusting the damper.
Clinkering - Silica (or sand) in the fuel, along with other impurities, can
cause clinkering. A clinker is a hard mass of silica formed in the burning
process. Clinkering is a function of the fuel, (not the stove), but adversely
affects the performance of the stove by blocking off the air passages in
the grate. Even P.F.I. approved pellet fuel may tend to clinker. A clinker
can be removed from the UltraGrate™ and placed in the ash pan with
the use of the grate scraper/ash pan tool furnished with your stove. See
Routine Maintenance (on Pages 20 through 24) for more information
on cleaning.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
CAUTION
19