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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
8.
Boiler maintenance
TKAN boiler requires daily and periodical cleaning.
Daily (at least weekly) cleaning also applies to the boiler’s space of grey cast iron where we,
by constantly ejecting ash, enable more efficient operation of the electric heater for firing and
more efficient combustion, that is larger amount of air through air channels in the grey cast
iron. Also, ash starts piling up during the day on the floor, in the area around the furnace itself.
According to average combustion parameters, 100kg of pellets produce 1kg of ash, but this
information significantly varies depending on the type and quality of ash.
Each 7 to 10 days, shutting down the boiler is recommended, cooling off a few hours, and
manual or, the best, vacuuming depths of the combustion chamber. This removes even larger
pieces of uncombusted pellets which can cause unpleasant sound while the boiler is working
and decrease the lifespan of the screw spiral which pushes pellets into the combustion space.
Once a month, it is necessary to open the upper door for cleaning as well, remove turbulators
and remove layers of tar and soot from pipes of the exchanger. Everything removed at that
point is picked on the upper surface of the furnace roof or in the smokebox.
Too much ash in pipes of the exchanger decreases utilization of the boiler and leads to
excessive temperatures in the furnace which can cause deformations to it, that is to the
lower door.
NOTICE: Depending on the mode and working conditions, quality of pellets,
that is biomass, listed cleaning periods may even be more frequent.
If condensation occurs in the boiler while using it, it is necessary to deal with the condensation
and to coat the entire boiler from inside with basic cleaners or at least with aqueous solution of
builder’s lime. That way, the neutralization of acid due to condensation is done.
This way, conserve the boiler imperatively at the end of the heating season.
In that situation, close all holes on the fireplace to avoid air circulation through
the fireplace because that can result in the appearance of moisture inside.
Servicing the fireplace is one of the most important factors for its long
working life. Between two seasons, it is particularly important to clean the
fireplace and neutralize the acid as described
