Radijator Inženjering d.o.o, 36000 Kraljevo, Živojina Lazića - Solunca br.6, Srbija
tel. +381 36 399 140, fax. +381 36 399 150,
http://www.radijator.rs
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4 . NOTE !
Too low temperature of starting and return water affects the formation of condensation,
which directly affects the life of the boiler. In extreme cases, there may lead to condensation
which can be measured by liters, so when the condensed matter leaks it is suspected that the
tank is leaking. Condensed matter in itself has the sulfuric acid which is formed by the sulfur
removed from the products of combustion. Sulfuric acid causes the corrosion of metal. Dew
point depends on the type of fuel, air pressure and humidity and varies in the range of 45 ° C
-50 ° C. Therefore, we must be careful when the boiler is in operation the return water
should never fall below 55 ° C. The boiler is not useful for low - temperature operation. It
should be specially noted that the boiler is installed on the system of adequate capacity,
because there will come the cooling and condensation. If the boiler is covered with tar and
soot the heat transfer is weak and it will, also, cause the cooling of boiler and condensation.
It is possible to avoid the condensation in the Boiler:
by properly choosing the chimney,
by prescribed way of firing and prescribed type of combustion fuel,
by regular maintenance of boiler and chimney, and in particular,
by using the four-branch mixing valve.
5. MAINTENANCE OF BOILER
When using solid fuel, in boiler, can accumulate, relatively quickly, a layer of soot and tar.
Therefore, it is recommended to daily clean the ash from the fireplace.
When cleaning we have to bring a greater amount of fresh air into the boiler room to avoid
the suffocating of stoker.
Be sure to thoroughly clean it once every seven days. The boiler is of such construction
that it is possible to clean the exchanger surface through upper firing door. Flap for cleaning
is moved out from its furnace and is completely removed from the boiler.
When the boiler is thoroughly cleaned, firing fuel to a higher extent is necessary for one so
that the temperature reaches 85 ° C, which contributes to the combustion of soot and harmful
substances in the firebox of the boiler. In this way, the boiler will have a better efficiency.
We recommend a regular monitoring by the chimney sweeper.
Upon termination of the heating season the boiler should be thoroughly cleaned, and then
all doors should be closed including the door for draft regulation. This prevents, in summer
season, the air flow through the boiler, i.e. it eliminates the possibility of cooling of ends
heat exchanger’s boxes and the the effect of dew creating. Possible dew creating boiler even
in summer affects the life of boiler negatively.