HAAS + SOHN HSP 2.17 Installation And Operating Instructions Manual
Also see for HSP 2.17: Equipment sheet
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Contents
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6Figure 4: Wind protection of the air intake pipeThe following table applies to the sizing of the air intakepipe:Diameter of theintake pipe *Maximumlength *Max. number of90° bends50 mm 0.5 m 1100 mm 1 m 1100 mm 3 m 3*The figures given apply as appropriate. With a flat ductor similar, a suitable cross-section is to be chosen.If the pipes are narrower than these dimensions, it maybe that the volume of combustion air is insufficient. Thiswill result in heavier buildup of clinker in the grate andthereby to safety shutdowns.Connection to the electricity supply:Connect the stove to the electricity supply with the mainscable supplied. (See Figure 1).4. The pellet stove’s functional characteristicsYour pellet stove is designed to operate in such a wayas to maintain a constant comfortable room temperature.The generation of heat in the stove is thereforeautomatically controlled by the desired roomtemperature (target temperature) set by the operator.Depending on the difference between the targettemperature and the current room temperature (actualtemperature) the control unit selects output or “Standby”mode in a modular fashion. So the pellet stoveguarantees the best possible adjustment of thecombustion behaviour of the pellet stove for the situationin the room where it is installed without constant manualcorrective measures.5. The pellet stove’s operating statuses:The operation of the pellet stove is characterised by 8operating statuses:The ignition phase begins if the current roomtemperature falls below the set target temperature by1ºC and the stove has cooled down to a temperature ofbelow 70C°.5.1. Ignition phaseIn the “Ignition phase” the grate is filled with a preciselydefined quantity of fuel and this quantity of fuel is ignitedwith a glow igniter.The “Ignition phase”, which is divided into 20 zones, isended after reaching a precisely defined temperature onthe “flame temperature sensor” and the control unitswitches to “Heating Mode” operating status.The duration of the “Ignition phase” may vary.If during these time no flame is formed or the requiredtemperature is not reached at the “flame temperaturesensor – flue gas”, a safety shutdown is initiated.Here the rotation speed of the induced draught fan isconstantly measured and checked by means of therotation speed feedback.5.2. Heating modeAfter successful completion of the “Ignition phase”, thestove automatically switches to “Heating mode”operating status.In “Heating mode” operating status, the stove’s heatoutput is adjusted in modular fashion on the basis of theroom temperature or the difference between the actualroom temperature and the target room temperature.If there is a great difference between the target roomtemperature and the actual room temperature, then thestove will operate with greater heat output (maximum 8,2kW).The closer the actual room temperature comes to thetarget room temperature, the more the heat output of thestove is reduced (minimum heat output = 1,8 kW).Depending on the required heat output, the relevantquantity of fuel will be supplied at a regular rate via thepellet chute to the grate by means of the screwconveyor.During the “Heating mode” operating status, the flame orcombustion chamber temperature is measured justabove the flame by means of a special thermosensorwhose signals are processed in the control unit and arethe basis for the relationship of the “energy level in thegrate” and the combustion air volume taken in, whichensures “ideal combustion” and a high level of efficiency.During the “Heating mode” operating status, the rotationspeed of the induced draught fan is monitored by meansof rotation speed feedback and constant comparisonbetween the target and actual rotation speeds.In the event of a large difference between the actualrotation speed and the target rotation speed, a safety |
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