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8.2 Operating modes
We recommend setting the boiler water (primary circuit) to the temperature of at least 70
o
C. The low operating boiler
temperature supports condensation of tar components on the boiler walls, thus bringing out corrosion which substantially reduces
the boiler life.
Fan blocking – in order to make the firing up of an extinguished boiler more comfortable, the flue gas extraction fan
operation may be interrupted thus avoiding having the match blown out by the undesired draught of the flue gas fan.
Once the boiler door is opened, the flue gas fan is always switched to full power so that no flue gas leakage into the
boiler room occurs.
Manual operation – switches the fan and circulation pump regardless of the operating mode of the boiler and output
water boiler temperature.
Setting the required temperature – for basic design only; the controlled ensures supplies of heating water
into the system according to the user-set temperature.
Selection of equithermal curve – for equithermal design with an outdoor temperature sensor only. The user defined
parameters of slope and heel point determine the nature of the equithermal curve, according to which the output water
boiler temperature is calculated.
Pressing the OK button in the basic menu displays the history of the controller’s operational values. The buttons may be used to
change the resolution of the chart and the + - buttons are used to move across the time axis. The chart memory is roughly for 4
hours.
8.3 Adding fuel material
Additions of the fuel material take place via a stoke door after opening the filling door. Handle the door with the chimney dumper
open only. Given a proper function of the boiler, these conditions are met automatically once the following steps are taken:
Open the chimney dumper with a draw bar. Wait for approx. 1 minute before slowly opening the filling door.
Tilt down the screen with a fire hook and assess the remaining lumps of firewood. Put more wood on the hot ashes.
Close the screen. Close the filling door and retighten the screw cap with caution.
Use the draw bar to close the chimney dumper. The boiler will gradually ramp up to the required power.
The boiler combustion time with the full chute depends on the humidity of the fuel material and the power consumed.
Warning:
After the stoking, the chimney dumper must be closed! An open chimney dumper will allow uncontrolled burning of the boiler due
to continuous intake of secondary air. Boiler overheating is imminent!
Fan power
Operating mode
of the controller
Stoking
Running
Lack of fuel material
Manual operation
Setting the required
temperature for the basic
design
Selectin of an
equithermal curve for
equithermal design with
an outdoor sensor
Confirmation buttons
Change in value + -
Manual mode,
the fan and
circulation pump
switched on
Fan blocking
Boiler output water temperature
Outdoor
temperature
Pump operation
