Technical data

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The system works by:
- water temperature setup on the boiler exit ( wide temp. range 65 - 80º C)
- signaling of excessive water increase and also excessive water drop
- fan switching off when the water temperature on the boiler achieves the
assigned value
- reduction of fan rotations when water temperature approaches the assigned
value (modulation)
The boiler is also equipped with additional safe guard thermometer (sensor)
needed for entire fan switching off when water temperature on the boiler exit
achieves 90ºC.
Drying and gasifying of wood takes place in the boiler container. Wood glows in
the air-tight loading chamber; the chimney exit is closed, while the fan is feeding
only a scarce amount of air; all gas components released during the pyrolysis
process reach the elongated burner of refractory concrete placed under the
container. The burner (nozzle) is also fed some secondary air which mixes with the
wood gas in such a way that the burning process is perfect. The burning of wood
gas in the lower chamber achieves 1200ºC.
The steel bottom of the combustion chamber (ash pit) is covered
by refractory concrete which protect the steel of the high temperature. The
chamber bottom and internal side of the boiler's door are also covered with the
refractory concrete. The boiler nozzle is made of refractory concrete as
a whole.
Above mentioned elements can work even in 1600ºC.
All boilers' door is sealed with a heat-resisting, glass wool cord.
To fill the boiler up:
1.switch off the fan using boiler master switch
2.open chimney flap
3.open upper door and fill up the boiler with wood
4.close chimney flap, door, and wood switch on the master switch
Remark! Boiler fuel shortage is indicated by yellow indicator
Boiler switching off
Boiler is switched off by pressing of master switch or automatically during fuel
shortage. See above.
Boiler cleaning
Boiler ash pit should be cleaned of every 3- 5 days. Loading (gasification)
chamber should be cleaned before each boiler burning. The ash shall be swept out
by the boiler nozzle of refractory concrete special care should be taken not to
damage of the boiler bottom. Onyl original cleaning tools shall be used (always
delivered together with the boiler).
A wood tar is produced during gasification process. Its issuing degree depends
on: wood type, its humidity but also inlet and outlet water temperature. Gasification
chamber should be cleaned of wood tar once a month by using of delivered scraper.
Also, inside exchanger tubes a carbon deposit is settled. It causes tubes diameter
decrease. Due to this, exchanger tubes should be cleaned every second week to
assure their permeability.
To clean out the exchanger you should:
1.Take off the boiler back upper casing
2.Turn on the nuts with M13 - M17spanners (depending on boiler type). Important!
Before nuts turning on and turning off the thread should be preserved with a
special anticorrosion agent; do not turn on nuts with exertion.
3.Precisely clean out each tube with cleaning shield (disk, target) up and down to
avoid setting of the furnance black down in the tube.
4.Sweep all of the furnance black settled on the boiler back wall.