Tetan KP 12S Service And Operation Manual page 38

finally, remove all solid waste located inside the air box of the burner. Tilt the burner gradually in order to
pour out all impurities from the burner through the pipe of the fan. Work until the burner is completely
cleaned.
if automatic ignition is installed on the burner, dismantle both spirals and remove all impurities from the air
box of the burner through the installation apertures.
Cleaning of burning chamber
In order to prevent from increased dustiness, we recommend to place the lid of the boiler body on the
boiler for this time.
While cleaning, we may not forget about the placement bars of the extension grate which have to be
perfectly cleaned so that individual parts of the extension grate can be precisely placed on them back.
After complete assembly of all boiler parts remove ash to the external ash container by manually turning
on the ash removal drive in manual control in Menu Diagnostics.
Remaining ash can be removed by scraper from a burning chamber in to a auger.
Back installation of all parts
Should be done in reverse order. Ensure mainly the following in course of this activity:
Electric resistance coils - Maximum tightness has to be ensured between the flange of spirals and the wall
of the burner.
The flange of the burner has to be put precisely so that the packing cord of the flange fits tightly on the
protruding ribs of the body all over the circumference.
The spiral-chute feeder should be anchored precisely in the axis of the pipe and should not thus drag
against the wall of the pipe (which is one of reasons why smooth operation is blocked).
The joint has to be treated with a sealing paste before the flange of the drive is installed, which is an
important measure against smoke penetration.
Individual part of the extension grate have to be placed precisely in their correct order.
The ceramic reflector has to be placed symmetrically in the corresponding bed of the burner and plugged
in the stop to the rear side. Individual bearing surfaces (of the burner and reflector) have to be in mutual
contact.
Having the back installation been done completely, check via gradual visual check whether all parts are
installed correctly. Finally, try operation of the spiral-chute feeder. Its operation has to be calm and
without any disturbing noise.
Re-entry into service
After the maitenance is done connect boiler to a power line a trun on main switch.
Check if feeders are fill with a fuel and that the pellets are transported in to a burner.
Press button START and check right functionality..
If the boiler is not going to be used in summer time (like heating of service water), we keep the main
switch off.
Automatic boiler for wood pellets
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