Technical Description Of The Attack Dpx Lambda; Regulation Of Burning; Igniting And Refilling The Fuel; Igniting Or Refilling The Fuel - ATTACK DPX15 Instructions For Use Manual

4 TECHNICAL DESCRIPTION OF THE ATTACK DPX LAMBDA

4.1 REGULATION OF BURNING

The boiler output is regulated according to the flue gas temperature by the air inlets to the
particular oxygen value. The flue gas temperature for burning down is adjusted. If there is a lot of
fuel (totally full feeding chamber) and the boiler temperature achieves 90 °C (overheating), the
flue gas fan is stopped, flap for primary air is closed and flap for secondary air is open for 25 %.
When the boiler temperature decreases to less than 88.5 °C, the flap for secondary air is for 30
seconds open for 100 % (chimney cleaning) and the primary air flap is regulated according to the
requirement for the flue gas temperature.
Automatic boiler stop: After the fuel burns out, the boiler can be stopped automatically or by
setting the flue gas temperature (TAG) or by a setting the value for oxygen (optional function).
Boiler stop by setting the flue gas temperature: When the fuel burns out and the flue gas
temperature decreases to less than 25 % of the adjusted value, the boiler stops after 15 minutes.
This is recommended only when the big or wet wood logs are being used.
Stop by the oxygen value: If the boiler works for more than 45 minutes and the oxygen value
exceeds 14 % for more than 15 minutes, then the boiler stops. This should be a standard function,
when the boiler cooling by chimney is limited. Ignition with remaining coal is easier and there is
less smoke by heating up.
When the boiler stops, the flue gas fan is stopped, the primary air flap is closed, the secondary air
flap remains open for 25 % until the flue gas temperature decreases below 100 °C.
Automatic restart after the power shortage: After the power shortage, the secondary air flap is
open for 100% for 30 seconds to let the chimney clean.
Overheating (boiler temperature above 90˚C): The secondary air flap remains open for at least
25 %.
After turning the boiler off (automatically or manually): The primary air flap V1 is closed (0%),
the flue gas temperature is above 100 °C, the secondary air flap remains open for at least 25 %
and function of the automatic operation is inactive.

4.2 IGNITING AND REFILLING THE FUEL

Basic instructions:
Check the pressure (and level of water) in the heating system before igniting.
The fuel has to be prepared in the boiler.
Ignite the fuel (see the prescriptions for boiler operation) and the rest of fuel in the feeding
chamber

4.3 IGNITING OR REFILLING THE FUEL

If it is possible due to the requirement for heat and the rest of the fuel in the feeding
chamber, check the thermometers in the feeding chamber.
Effect: Maximum utilization of fuel
Beginning: When the boiler is stopped (the indicator light 1 does not flash), make the fire as first.

4.4 REFILLING THE FUEL DURING THE BOILER OPERATION

Refill the fuel quickly and close the door immediately.
29