30
maintenance - Cleaning
Cleaning the heat Exchanger
The accordion heat exchanger surfaces are the primary
source of heat transfer into the room. Therefore, it is
very important to keep them clean from flyash and
soot buildup.
•
The heat exchanger surfaces should be cleaned after
approximately every 1 ton of pellets are used.
•
Use the scraper provided to clean all the way into
the point.
•
Note: An old paint brush works well to clean these
surfaces.
•
Note: The unit “must be cold” before using anything
other than a wire brush.
•
There are 2 primary air inlet holes on the rear flange
of the burnpot. They should be checked for blockage
and cleaned with a vacuum if necessary. Note: The
bottom of the flame guide has 2 notches that match
the holes.
Cleaning the heat Exchanger tubes
Using the cleaning brush provided, clean these tubes
after every 1 ton of pellets are used.
These tubes are an important part of the heat ex-
changer. Efficiency will be lost if they are not properly
maintained. The right side tube is a straight passage
to the combustion blower chamber. The Left side tube
follows straight back then makes a right turn, across
the back, to the combustion chamber. You will need
to use the entire length of the cleaning brush handle
to properly clean this tube.
monthly Cleaning- continued:
There is a 2" square exhaust tube on each side (lower
left and right corners) of the firebox. They can only be
seen with the cast heat exchanger covers removed.
Fig. 61
Fig. 62
Fig. 63
Primary Air Inlets
Summary of Contents for Harman Accentra Insert
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