Instruction manual

16
Technical description of the ATTACK DPX LAMBDA:
Combustion regulation
The boiler output is regulated by means of the exhaust temperature – to the O2 value and by means
of air flaps - actuators for the primary air and secondary air. The burn-off occurs with the adjusted
exhaust temperature set value. If the boiler temperature increases to 90°C (Over temperature)
because there is too much fuel (buffer is fully loaded), the exhaust fan is switched off, the primary
air flap is closed and the secondary air flap is opened on 25%. If the boiler temperature decreases to
to less than 88.5°C, the secondary air flap is opened for 30sec on 100% (chimney cleaning),
afterwards the primary air flap is regulated following exhaust temperature requirement.
The automatic switch off of the boiler: Switching off the boiler after the fuel is used, can be
alternatively done by means of exhaust temperature (TAG) or by the O2 value (function adjustable).
Switch off by exhaust gas temperature adjustment: If the fuel is used and the exhaust gas
temperature decreases for less than 25% of the nominal exhaust temperature, the boiler is switched
off after 15 minutes. This is recommended only with very big woodlogs or with very humid fuel.
Switch off by Oxygene: If the boiler runs for longer than 45 minutes and the O2 value rises for 15
minutes over 14%, the boiler is switched off. This should be the standard function, because cooling
down of the boiler by the chimney is limited. The remaining rest of coal makes easier renewed
firing and proves the lowest issues while heating-up.
After boiler switch off, the exhaust fan is switched off, the primary air flap is closed and the
secondary air flap still remains on 25% open until the exhaust temperature sinks under 100°C.
After switching off the boiler (automatically or manually): The primary air flap V1 is closed (0%),
the exhaust temperature is >100°C, the secondary air flap (V2) stays open to min. 25% and the
automatic operation continuation remains deactivated.
Heating-up and refuelling:
Basically: Before heating up, pay attention to heating system pressure (water level)!
Fuel has to be ready in the boiler!
Ignit the fuel (use operation prescriptions of the boiler)
Check requirement for warmth and external temperature, as well as the residual supply in
the hopper
Heating-up or refuelling only:
If it is possible due to the requirement for warmth and residual supply in the hopper, check
thermometers in the hopper.
Right firing-up follow (see operating instructions to the boiler)!
Effect: Maximum exploitation of the fuel.
Introduction: Make up the fire first, when the boiler is switched off (control light 1 does not shine),
Additional fuelling in “Boiler ON” status
The fuel has to be loaded immediately and the filling door must be immediately closed!