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4.2 Adding fuel
Fuel must always be added when the layer of coal on the grate has burned
to such a state that the embers take a pink colour and start to become covered
with ash. Before adding fuel, the flue damper must absolutely be open and the
fan turned off.
ATTENTION:
It is forbidden to burn other fuels, which might cause the
walls of the heat exchanger to become covered with tarry, difficult to
remove deposits, as well as to maintain boiler temperatures below 50
0
C,
which is conducive to corrosive exhaust gases and reduces the efficiency
of the boiler as the exchanger walls are covered with soot and ash.
4.3 Stopping boiler operation
The boiler can be extinguished through the cutting off of fuel or air supply.
Wait until the fuel in the chamber has burned completely. In case of failure it is
permissible to move the hot embers to the ash drawer, observing extreme
caution (efficient exhaust ventilation, boiler room door open).
For the summer period, when the boiler is not in use,
clean the boiler
(firebox, heat exchanger channels, tubes)
of soot and ash.
In addition, open all hatches
.
After the summer break period, test circulation pumps mounted in the
system and the fan before starting the boiler!
4.4 Cleaning the boiler
The boiler must be cleaned in order to ensure good heat exchange with
the heat exchanger. In addition:
open flue damper fully,
turn off the controller (optional equipment),
open the top cleaning hatch and brush clean the upper heat exchanger
channel, then the bottom channel.
move the ash drawer to the cleaning hatch and put ash in the drawer,
close the upper hatch and open the middle hatch of the firebox
clean upper heat exchanger channel from the sides and top, sweep ash
from the chamber
clean the walls of the firebox
open firebox hatch and remove the ash drawer
unscrew the upper hatch in KWRU boilers and clean the vertical
channels, remove ash from rear channel through the lower cleaning
hatches located on the side of the boiler,
in KWRUZ boilers, clean air channels with fan turned on.
Summary of Contents for KW-10
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