Central Boiler e-Classic 1450 IR Owner's Manual page 64

The amount of visible emissions can be reduced by
burning seasoned wood, by making sure that your
chimney meets the recommendations in this owner's
manual and by loading the firebox to match your heat
load. Once the water content of the wood has evaporated,
the emissions become very transparent.
1. Bypass door open - Pull the bypass handle toward
the front of the furnace and push down to close the
bypass door.
2. Bypass door not sealing properly - Make sure
nothing is obstructing the bypass door, preventing
it from closing completely. When the bypass door
handle is pulled toward the front of the outdoor
furnace and pushed down, the bypass door must
form a seal over the bypass opening.
If the bypass door is obstructed, it may be necessary
to shut down the outdoor furnace, allow it to cool
thoroughly, and then inspect and clean the bypass
door and chimney transition box.
Inspect and clean both from inside the firebox and in
the chimney transition box (accessible by removing
the top rear panel and access cover to the heat
exchanger). It might also be necessary to remove the
chimney and chimney tee to gain better access to the
area.
If the outdoor furnace is being operated properly,
the entire chimney transition box should always
be completely dry. Any creosote or other moisture-
related buildup is an indication that temperatures
in the Reaction Chamber are not high enough. This
can be caused by not loading the wood correctly,
the wood having too high a moisture content, the
outdoor furnace being operated with the firebox
door open, or the lack of a sufficient coal bed.
3. Solenoid air regulating disc not adjusted
properly - Refer to Fig. 72 for the factory settings
for the air regulating discs.
4. Solenoid not operating properly - Refer to Solenoid
in Owner Serviceable Items section if replacement is
necessary.
5. Too much ash in firebox - Refer to Routine
Maintenance for ash removal.
6. No glowing coal bed - One to three inches of
glowing coals are needed to optimize the operation
of the outdoor furnace.
7. Wood contains too much moisture - Use correctly
sized, seasoned wood.
62
I. CORROSION IS PRESENT
Corrosion in the firebox can occur when the outdoor
furnace is being operated improperly. To maximize the
life of your investment, it is important to identify signs
of corrosion early (you can do this by performing the
items in the Preventive Maintenance Schedule) and take
measures to correct it as soon as possible. Some, but not
all, causes of corrosion are listed below with possible
solutions. If you are unsure how to proceed, contact
your Central Boiler dealer.
1. Water temperature is too low - If the heat load
in the system is too large, the water in the system
will not reach high enough temperatures to dry the
firebox and corrosion can occur. Re-evaluate the
system and match heat load to the outdoor furnace.
NOTE: To reduce condensation in the firebox, it
is not recommended to set the temperature below
185˚F (85˚C).
2. Heat load is low - If the heat load is low (during
warm outdoor temperatures, for example), filling the
firebox full with wood can lead to condensation in
the firebox. When the demand for heat is low, add
only enough wood to the firebox to last for about 12
hours.
3. Thermostatic valve is not installed - A thermostatic
valve must be installed on each set of supply and
return lines in the system to maintain the outdoor
furnace water temperature above 150˚F (65˚C).
4. Acids forming in the firebox - Use more Ashtrol in
the firebox.
5. Quality of wood poor - Use wood with a lower
moisture content or if the wood is properly seasoned,
it may help to try a different species of wood.
6. Burning garbage or plastic -Do not burn garbage
or plastic. It is likely unlawful and may damage the
firebox in a very short period of time.
NOTE: Chloride or sulfurous gases can be
generated if plastic or rubber is burned and will
mix with the moisture from the wood to form
hydrochloric or sulfuric acids in the firebox,
creating corrosion.
7. Firebox wasn't cleaned out at the end of the
heating season - Be sure to follow the post-heating
season maintenance schedule which includes
scraping out firebox and removing all ash.
Section 5 - Troubleshooting