Fuel - Sunsystem Burnit Pell series Technischer Datenblatt Montage- Und Bedienungsanleitung

The combustion chamber consists of two tubes:
Ember resistant steel tube inside the burner with
holes for air intake along its entire length, opening
EN
for the hot air from the fuel ignition heater, opening
for photosensor.
Outer stainless steel tube. Between the two tubes
there is a gap which provides for free circulation of
the air necessary both for cooling and oxygen supply
into the combustion chamber.
The feeder chute allows 360° rotation for its best
convenient positioning when connecting the pellet
auger to the hopper.
Diagram 2. Pellet burner Pell design
• Built-in controller.
The main control unit, located in the burner,
manages the entire heating process. Controler
functions:
Controler functions:
1) fully automated ignition and pellet feed;
2) self-cleaning function (adjustable 1-6 times over 24
hours at equal intervals), programmable start time;
3) controls the operation of the circulation pump of
the central heating;
4) controls the operation of the pump of the domestic
hot water;
5) option for control by room thermostat;
6) timer;
• Photo-sensor - monitors the power of the burner
flame
• Internal auger
• Dry contactless resistance heater assuring ignition
of fuel
• Innovative cleaning system of the combustion
chamber
• Air feed fan, step-regulated (0% to 100 %).
2.2. Burner safety devices
• Elbow-shape feeder chute. The geometrical shape
of burner feeder chute prevents backfire entry from
burner into pellet hopper.
• Thermostatic protection (80°С). The thermostatic
protection is fitted on the feeder chute. When
the surface of the feeder chute reaches 80°С, the
control stops the feeding of pellets into the burner
and signals for fault.
• Fuse. In case of electrical fault in the system of
the burner (short circuit, high current, etc.), the
overload is borne by the electrical fuse fitted on the
main control panel of the burner (10 А).
TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL
6
• Power interruption. In case of power interruption,
all parameter settings are stored in the memory
of the controller. Upon the subsequent restart of
the burner, the controller resumes the execution
of the program from the point when the power
interruption occurred.

3. FUEL

All pellets are biomass manufactured from common
low-growing plants and trees. The most common
household type pellets are made of sawdust and
milled wood chippings which are waste material
from wood used in the production of logs, furniture
and other products. Wood is the richest raw material
which does not have any impact on the production
costs of food products or ethyl alcohol (ethanol).
The raw material is processed under high-pressure
and temperature and is pressed to produce small-
size cylindrical pellets. The production process may
utilize soft wood material (such as softwood, pine),
hardwood (oak) as well as recycled waste wood.
Wood pellets are produced in hammer mills or wood
pellet plants.
Advantages of wood pellets:
Convenient storage. Pellet bags can be stored on a
small area in a dry garage, basement, service room
or shed.
Easy loading. In most cases the boiler hopper needs
loading only once a week – this depends on the
hopper capacity.
Better control of fuel quantity. The small size of
the pellets allows for precise fuel feeding. On the
other hand, the supply of air for reaching optimal
combustion efficiency is easier to adjust since the
fuel quantity in the combustion chamber remains
constant and predictable.
Fuel efficiency. High combustion efficiency is also
determined by consistently low moister content of
pellets (consistently under 10% as opposed to 20%
to 60% moisture content of the logs). Low moisture
content, controlled fuel portions and precise air
setting means high combustion efficiency and very
low carbon oxides in the flue gases.
When purchasing
conformity declaration and certificate
issued by an accredited laboratory
and make sure the fuel meets the
i
requirements indicated in the manual.
If you purchase large amount of pellets
(bulk supply for the entire heating season
for example), ask your supplier to provde
accurate and true information about the
storage conditions.
pellets, ask for