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Haas-Sohn PELLETTO 432.08 Manual

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6
Figure 4: Wind protection of the air intake pipe
The following table applies to the sizing of the air intake
pipe:
Diameter of the
intake pipe *
Maximum
length *
Max. number of
90° bends
50 mm
0.5 m
1
100 mm
1 m
1
100 mm
3 m
3
*The figures given apply as appropriate. With a flat duct
or similar, a suitable cross-section is to be chosen.
If the pipes are narrower than these dimensions, it may
be that the volume of combustion air is insufficient. This
will result in heavier buildup of clinker in the grate and
thereby to safety shutdowns.
Connection to the electricity supply:
Connect the stove to the electricity supply with the mains
cable supplied. (See Figure 1).
4. The pellet stove’s functional characteristics
Your pellet stove is designed to operate in such a way
as to maintain a constant comfortable room temperature.
The generation of heat in the stove is therefore
automatically controlled by the desired room
temperature (target temperature) set by the operator.
Depending on the difference between the target
temperature and the current room temperature (actual
temperature) the control unit selects output or “Standby”
mode in a modular fashion. So the pellet stove
guarantees the best possible adjustment of the
combustion behaviour of the pellet stove for the situation
in the room where it is installed without constant manual
corrective measures.
5. The pellet stove’s operating statuses:
The operation of the pellet stove is characterised by 8
operating statuses:
The ignition phase begins if the current room
temperature falls below the set target temperature by
1ºC and the stove has cooled down to a temperature of
below 70C°.
5.1. Ignition phase
In the “Ignition phase” the grate is filled with a precisely
defined quantity of fuel and this quantity of fuel is ignited
with a glow igniter.
The “Ignition phase”, which is divided into 10 zones, is
ended after reaching a precisely defined temperature on
the “flame temperature sensor” and the control unit
switches to “Heating Mode” operating status.
The duration of the “Ignition phase” may vary but it is
restricted to a maximum length of about 20 minutes.
If during these 20 minutes no flame is formed or the
required temperature is not reached at the “flame
temperature sensor – flue gas”, a safety shutdown is
initiated.
Here the rotation speed of the induced draught fan is
constantly measured and checked by means of the
rotation speed feedback.
5.2. Heating mode
After successful completion of the “Ignition phase”, the
stove automatically switches to “Heating mode”
operating status.
In “Heating mode” operating status, the stove’s heat
output is adjusted in modular fashion on the basis of the
room temperature or the difference between the actual
room temperature and the target room temperature.
If there is a great difference between the target room
temperature and the actual room temperature, then the
stove will operate with greater heat output (maximum 8
kW).
The closer the actual room temperature comes to the
target room temperature, the more the heat output of the
stove is reduced (minimum heat output = 2.5 kW).
Depending on the required heat output, the relevant
quantity of fuel will be supplied at a regular rate via the
pellet chute to the grate by means of the screw
conveyor.
During the “Heating mode” operating status, the flame or
combustion chamber temperature is measured just
above the flame by means of a special thermosensor
whose signals are processed in the control unit and are
the basis for the relationship of the “energy level in the
grate” and the combustion air volume taken in, which
ensures “ideal combustion” and a high level of efficiency.
During the “Heating mode” operating status, the rotation
speed of the induced draught fan is monitored by means
of rotation speed feedback and constant comparison
between the target and actual rotation speeds.
… 6 …


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Others manual(s) of Haas-Sohn PELLETTO 432.08

Haas-Sohn PELLETTO 432.08 Usermanual and installation guide - German - 34 pages

Haas-Sohn PELLETTO 432.08 User Manual - French - 34 pages


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