Lennox Bella Installation And Operation Manual page 28

Inspect Gaskets
Inspect the condition of the rope gasket around the door and window
periodically, and replace if necessary.
Cleaning the Heat Exchanger
CAUTION: Do not operate the heat exchange scraper when the
stove is hot.
The heat exchange scrapers are located to both the right
and left sides of the heat exchanger directly above the glass door (see
Figure 38). To remove ash build-up and maintain efficient heat extraction
from the stove, the two rods attached to the scraper should be pulled
back and forth with even pressure at least once a week. Be sure to make
sure the rods and scraper are seated all the way back down before you
close the front cast iron door.
DO NOT USE BRUSH ON HOT STOVE
Flue Passageways Cleaning Procedure
1. Open both the right and left side castings to locate flue clean-out
covers (see A in Figure 36 along with B and C in Figure 37).
2. There is one flue clean-out cover on the right side (see A in Figure
36) and one lower and upper passageway on the left side (see B and
C in Figure 37).
3. Using a 5/32" allen remove allen head screws on each cover to access
the flue passageway cavities.
4. Using an ash vacuum, clean out all flue passageways on both the left
and right side of the stove starting at the top then going to the low-
ers.
5. Check flue clean-out cover gaskets for any damage and replace if
necessary.
6. Once the flue passageways are clear of ash build-up, reinstall the three
cover plates.
Figure 36
8
WARNING
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
B
C
Figure 37
D
Figure 38 - Heat Exchange Scrapers
A
Cleaning the Combustion Blower and Proof of Fire Switch
To clean the combustion blower, begin by unplugging the stove, opening
the left side door and locating the combustion box clean-out cover in the
lower left corner of the stove (C in Figure 37). Using a 5/32" allen wrench
remove the four screws securing the cover. Once the cover is off, gently
brush off the blades as well as the Proof of Fire switch (the small circular
object just behind the blades near the bottom. Figure 39) and vacuum
out all loose ash. When clean, inspect the silicone foam gasket on the
cover for damage, replace if necessary and reinstall the cover being sure
to tighten the bolts down evenly.
Note: Failure to clean the proof of fire switch when needed may result
in nuisance shut-downs because the fly-ash build-up insulates heat
from reaching the switch.
(Recommended Frequency of 1 year or after every 100 bags of fuel
used)