THERMOSTAHL PELLET STAR, Instruction Manual

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of the boilers increases the capacity of stocking the thermal energy and reducing the numbers
of ignitions.
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Reliability
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Energy Saving
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Environmental friendly
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Modern Design
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Solid Construction
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Easy maintenance
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Big fire box
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Rich radiant surface
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Three smoke pass
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Increased efficiency ≥ 78 90%
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Uniform thermal load
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Reduced temperature of the burnt gases in the chimney(170 -220oC).
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Long autonomy
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Exceptional draught
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Big water Volume
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Possibility for automatic functioning with solid or liquid fuel.
3.3 OPERATION
PELLETSTAR boiler functioning is based on the simplest burning method, with freely
evacuation of the burnt gases through the chimney. During the burning, the flame develops
towards all the points and heats uniformly the boilers walls that are cooled by water.
After that, the bunt gases are lead through the smoke tubes and into the smoke box. The
remains of the burning fall in the lower part of the boiler and become ashes.
When the water is still cold, the thermostat gives the signal to start the burner, which is fed
with pellets and starts automatically. When the temperature reached set, power supply and
the pellet burner enters in the transition period and cannot be started until after exhaustion of
the set to consume the quantity of pellet burner located in the tray after the flame sensor is
not lit. Thus, the flame control is achieved.
If somebody tries to increase the temperature of the thermostat during this time, the control
panel will indicate the presence of electric power in the burner but this will not start until the
transition time is over.
This is not a defect but assures a starting without problems after the transition time finishes,
(it guarantees that no unburned remains are accumulated in the burner blocking in this way
the tray with holes for the primary air).
If this time is being reduced in the burner setting, then problems will arise with automatically
restarting of the burner because of the remains that will block the air from entering the burner
tray and you will have to clean the burner more often than normal. The same is valid if the ash
content of the pellets is bigger than 0.3 %.
3.4 Pellets Consumption /hour/day/month
The quality of the pellets is very important (calorific power, humidity and ash content) and the
power at which the burner is set for ex, 10 -20 kW.
According to the chosen power the feeding time may vary from 3,68 seconds to 8,21
seconds, time between feedings is 15 seconds.
So you may reach consumptions of 0,7- 1,25 kg/hour at temperatures of -5
º C that is 16- 30
kg/day or 480-900 kg/month.
For a silo of 530 liters, the autonomy can be of almost 10 days.
If agro-pellets are used (sunflower), they will burn but you will have to clean the burner 3
times a day because the great ash content that may block the burner by accumulation.
If you use a different burner, the cleaning can be done once a day for the same agro-pellets.
Normally if using pellets with low ash content (DIN + quality certification) you need to clean
the burner once a week or even once every 2 weeks.
The safety kit is made from a safety valve (3 bars), an automatic venting valve and a
manometer to show the pressure inside the boiler.
The PELLETSTAR boiler can work with liquid or gas fuel as an alternative solution.
For this purpose there is need to fasten at the boiler
’ s door a special flange for adapting
another burner type.