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Gasifying boiler VIGAS
16.2 DISCHARGE FAN
16.3 CIRCULATION PUMP AND 3-WAY THERMOSTATIC VALVE ESBE
16.4 INDOOR THERMOSTAT
16.5 COOPERATION OF VIGAS BOILER WITH ACCUMULATION TANK
VIGAS 16, VIGAS 18 DPA
VIGAS 25, VIGAS 29 UD
8 m 160 mm
VIGAS 60, VIGAS 80, VIGAS 100 12 m 200 mm
Drawing of parametres V25 and V80 at - www.
The electronic control allows the connection of the pump to the power board unit of the
AK4000S without using an expander, even in basic version. The operation of the pump
depends on the selected hydraulic scheme and boi
ler temperature. The pump operates in
a pulsating cycle or persistent cycle.
Pulsating cycle
allows the pump to go „ON“ or „OFF“ at specific times. The activity ratio
depends on the boiler output temperature. The advantage of this cycle is to protect the
boiler against low-temperature corrosion. Pump activity is indicated by blicking pump icon.
Persistant cycle is used only with a 3-
way thermostatic valve or Ladomat installation. See
chap. 13.4.1.
When the pump is in operation, the symbol will be flashing on the display.
The discharge fan „2“ is
designed to eliminate exhaust gas in the boiler area during
fuel refilling. In case the boiler‘s chimney does not comply with minimum
„A“ and „B“, it is recomended to install a discharge fan. This should be
installed between the chimney flue and the chimney body.
should be attached on the side of the boiler. It is connected to the power board unit
It is possible to order the AK 4000S in two different sizes.
– for VIGAS 16,18DPA, 25, 29 UD.
0508) – for VIGAS 40, 60, 80, 100.
By connecting the indoor thermostat to the boiler, maintenance will become easier. It is
necessary to connect the indoor thermostat to the AK4000S power board. Connect to T3
input contact. The switching contact element is voltage free.
If contact T3 is disconnected,
the indoor thermostat „OFF“ sign will be displayed. The blower fan will shut-
boiler status is indicated by „ “ symbol
. When the indoor thermostat is „ON“ again, the
boiler is activated.
As standard in the boil
ers VIGAS, one load is sufficient for 12 hours of operation which
means that it uses less than 30% of rated output. In view of the life of the boiler it is
preferred that the boiler operates at least at 50% of rated output. If the boiler VIGAS is used
tank, 100% of rated output is used to achieve the desired boiler temperature. If
there is current requirement for heating, 100% output of the boiler is divided into charging
ACCU tank and heating. In this case, the tank is recharged by the excess out
boiler. In view of the fact that the boiler and ACCU tank
is hydraulically connected to each
other, the temperature of the ACCU tank
and the boiler rises to the desired temperature of
the boiler together. After exceeding this temperature by 10°C,
attenuaton (0% boiler output). In this mode, heating and charging ACCU tank is
managed solely by means of pumps. The great advantage of this system control is that in
the attenuation mode, it is possible at any time to add the f
uel to the boiler, without
overheating of the ACCU tank
, which in practice increases the time between fuel loading.
The automatic re-heating up takes place only after the exhaustion of ACCU tank
selected temperature MinT. ACCU tank minimal temperature
from 20°C to 70°C. After burning out of fuel and decrease of chimne
boiler set end, the boiler will shut down. In
a combined automatic boiler VIGAS 18 DPA,
after burning out of fuel "wood" boiler will automatically switch to fuel "pellets" and continue
heating another few days.
NOTE: For all hydraulic circuits with ACCU tank, there must be a thermometer for ACCU
tank (code 3032) connected to regulation AK4000 and its location to insert at the top of the
accu. tank.
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