Evaluation Of The Boiler Operation; Boiler Cleanup And Maintenance - Stropuva S7 Installation And Maintenance Manual

If after the fire up the boiler operates well, and later its capacity and draught decreases, it means
that the chimney flue is insufficiently tight: check whether the doors of the chimney flue cleanup are
closed or there are any other problems of tightness - remove them.
If after the burn up rhythmical noise is heard in the boiler and sometimes smoke erupts, it means
that the draught of the chimney flue is too strong – the boiler has no capacity and his operation is
uneconomic. In this case the air must be injected into the chimney flue through a special opening in a
horizontal connection. Turn a lever in the clockwise direction so that pulsing of a boiler would
disappear (see a diagram of the chimney flue).
If fuel burns well but the temperature indicator slowly raises up and condensate leaks from the
chimney flue, it means that the heated water flow is exceeded: switch on a circular pump into the
lowest position and reduce a flow by the boiler balance tape or flows in the heating elements till the
condensate stops leaking from the chimney flue and the boiler temperature indicator reaches 70 – 80ºC.
When firewood logs are burnt, ashes from the boiler must be removed every month. When
burning peat or coal, ash must be cleaned every month before firing. It is natural that the inner walls of
the boiler are slightly coated with tar but if the draught of the chimney flue is bad, if air passes through
the under part or lower doors, if during combustion the boiler is kindled and the air distributor is
moved, if the heated water flow is too intense too much tar could be build-up and the boiler can be
clogged. Therefore all the said defects must be eliminated. When the draught is reduced, heat
detraction cracks between the air heating compartment (2) and inner walls of the boiler must be
checked and cleaned up. They can be cleaned with a flexible brush through the inner smoke opening
above the fuel firebox door. It is more convenient to clean through a smoke discharge opening (after
dismantling a connection with the chimney flue) or through a special opening in the connection. The
boiler shall not clog if the heating system is correctly mounted; chimney flue is in a good order
and is used following the recommendations of the manual. Air distributor is lowered, can scoop up
old ash therefore their cracks must be sometimes checked and cleaned up.
If a crack between the lower plates is reduced or disappear, it must be restored after dismantling
of the distributor. A cable of the lifting mechanism must be lubricated so that it won't get warn and the
distributor would be lifted up more easy. We recommend lubricating the door closing hooks either.
Sometimes it must be checked whether the sealing of the doors and a place between the concrete floors
and the boiler is in a good condition. Remove the problems of sealing using heat resistance materials
mentioned above. So that the doors would be closed tightly, sealing materials should be replaced.
8.3

EVALUATION OF THE BOILER OPERATION

8.4

BOILER CLEANUP AND MAINTENANCE

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