Suitable fuel
Main fuel
Straw pellets / wood sawdust pellets / sunflower husk pellets / peat pellets
Diameter of pellets: 6 - 10mm, length: diameter x4.
Calorific value 15 -18MJ
Moisture content: up to 12%
Ash content: up to 6%
Dust: up to 2% of the fuel mass
IMPORTANT!
The boiler may only be used in a closed heating system with the expansion vessel.
Boiler specifications
1.
Boiler construction
Boiler Bio is made of high-quality certified steel. The frame is made of the galvanised tip coated with a layer of
powder paint.
2.
Composition
All boilers of
Bio
series made by Biokaitra consist of two individual active parts. The front part of frame is
occupied by the fire chamber, whereas the top and back parts of boiler frame contain a heat exchanger with the
water contour passing to the flue. The front part of boiler contains two doors: the upper - for burner and burning
chambers for visual inspection, the lower - bottom - for the removal of ashes. The opening on the top of boiler is
planned for the cleaning of heat exchanger which is hidden under the finishing.
3.
Combustion
In
Bio
boilers, the burning takes place in the burner to which the fuel is fed with the screw conveyor connecting
the fuel tank with burner. The fuel is loaded through the tank hatch with a lock.
IMPORTANT!
When the boiler is operating, the tank should always be tightly closed.
Afterwards, the fuel is fed to the burner via screw conveyor powered by electric motor connected with
motoreducers. In the burner, the fuel is pushed to the top to form the hump. The burning takes place in the upper
part of the burner when the ventilator blows the air to the burner. The air passes to the heated pellets through the
burner channels via the ceramic heating elements and causes burning. From the burner the ashes fall
spontaneously to the box of ashes located at the bottom of boiler combustion chamber.
4.
Water supply
The water is supplied to the boiler through the external screw connections G 1 ¼ “, the forced water discharge is
performed with ½” outlet located in the back bottom part of the boiler.
5.
Boiler flue
Flue socket of 150mm is installed in the back part of the boiler.
6.
Protection against overheating
If the temperature in the boiler reaches 95°C, the emergency thermostat is activated, the fuel feed is
deactivated as well as air ventilator and the sound alarm is activated. The unblocking of the emergency
thermostat is performed manually – it is necessary to open the cap and to press the button under the cap.
Unblocking is possible when the water temperature in the boiler drops below 60°C. In case of unblocking of
the emergency thermostat, no sound alarm will be heard. When the boiler starts to operate again, it is
necessary to find out the reason of activation of emergency thermostat by continuing to monitor the work of
the device.
2
