Central Boiler e-Classic 1450 IR Owner's Manual page 47

NOTE: Be aware that the hotter the fire, the less
creosote is deposited, so weekly cleaning may be
necessary in mild weather, even though monthly
cleaning may be enough in coldest months.
3-10. Combustion Air Outlets
Primary combustion air enters the firebox through
the combustion air outlets located on the sides and in
the front and back corners (Fig. 54). It is essential to
the operation of the outdoor furnace that these outlets
remain unobstructed. Clean the combustion air outlets
before they become plugged. The corner sections can be
removed for cleaning by sliding them up. The side air
channels can be removed for cleaning by removing the
acorn nuts. Make sure to thoroughly remove all ash and
deposits from behind the corner and side air channels.
Fig. 54
Combustion
Air Outlets
3-11. Combustion Air Fan
1. Disconnect power to the outdoor furnace.
WARNING
Do not proceed without testing that power is
disconnected.
2. Open the rear access door; then inspect the
combustion air fan inlet screen and fan wheel and
clean if necessary. Make sure the air intake is clean
and not obstructed.
Fig. 55
3. Connect power to the furnace.
NOTE: At the end of each heating season, oil
the combustion fan bearings using the following
procedure.
1. Remove the bolts securing the combustion fan and
remove the combustion fan.
Section 3 - Maintenance
2. Hold fan so the oil locations are upright; then apply
10 drops of SAE 20 non-detergent oil (e.g., 3-IN-
ONE
Fig. 56
3. Install the combustion fan and secure with bolts.
Slide Up
3-12. Secondary Air Charge Tube and
to Remove
Refractory
Removing and inspecting the secondary air charge
tube and inspecting the refractory is best done after the
outdoor furnace has been shut down and the firebox
has been cleaned according to the Complete Firebox
Pull Out
Cleaning Procedures.
to Remove
NOTE: The secondary air charge tube and
© 2012 Central Boiler
refractory are wear items.
Fig. 57
1. Remove the secondary air charge tube by lifting
and then sliding it toward the front of the outdoor
furnace. Inspect the mixing channel to see the area
is not plugged.
Oil) in each location, as shown in Fig. 56.
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