ARITERM SWEDEN AB
•
ARITERM OY
• Asennus ja käyttöohje • Installation och driftanvisning • Installation and operating instruction • UK 25.05.2012 •
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ARITERM-VTT-S-07229-11.1
FUNCTIONAL DESCRIPTION
Heating with the Ariterm B pellet heating centre is similar to oil heating in many
ways. The main difference is that heating with solid fuel produces a certain amount of ash,
which must be removed at certain intervals. If the ash is not removed, combustion efficiency
will decrease and the burner may malfunction.
The BeQuem pellet burner is equipped with automatic ignition. However, it can also be ignited
manually when necessary. The electric ignition system of the burner will only be activated dur-
ing cold starts, i.e., when the system has been inactive for a long period and the boiler tem-
perature has dropped to at least 8°C below the target temperature. During the heating process,
the necessary ignition cycles take place by means of the embers in the burner head. This saves
electric energy.
The burner and the incorporated feeding
system operate automatically. The opera-
tion of the burner is controlled by the tem-
perature sensor installed in the boiler. The
burner head contains an accurately defined
mixture of fuel and air, which ensures per-
fect combustion which is both cost-effective
and environmentally friendly.
The auger burner is over-pressurised dur-
ing operation. The purpose of this is to re-
duce the risk of damage to the burner if the
draught is weak.
Wood pellets with a diameter of 6 or 8 mil-
limetres (not in combination) are the recom-
mended fuel for the boiler.
Ash is removed from the ash box located in
the lower part of the boiler. Ash can also be
removed into a special ash pan by means of
an ash trap or a common vacuum cleaner.
However, the ash may still be hot. Therefore,
the ash trap must be heat-resistant.
Standard equipment includes an automatic
heat regulation system that adjusts the sup-
ply water temperature according to the tem-
perature outside.
For safety reasons, the pellet heating centre and fuel store must be placed apart from each other
to prevent possible damage. Any malfunctions or damages caused by incorrect handling will
then be limited to the burner. The fuel store must be built as a separate, fire-classified, confined
space.
Faults that cause the system to stop are indicated by a red indicator light. In addition to this, a
text message appears on the display indicating the cause of the fault.
During every operating cycle, a small amount of pellets (150 g) is fed from the pellet store via
the external feeding system to the upper connection of the burner. To make it possible to dis-
pense an accurate and equal amount of pellets during every cycle, the dispensing is carried out
by means of a separate feeding auger via the blocking feeder and auger burner to the burner
head.
As the auger burner feeds pellets forward three times faster than they arrive at the auger, a safe-
ty zone, containing only single pellets, is created between the burner head and the upper con-
nection. This safety zone always remains intact even in the event of power failure, insufficient
maintenance or equipment breakage.
Alarms are described in "Troubleshooting".
SAFETY AND ALARMS
The feeding auger must be installed in such a way
that its position with respect to the drop funnel
enables the drop pipe to hang free outside the
burner should a fire occur in the back.
