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56-GB
Operation and Maintenance Manual - GB
If no problem has been found, reset the regulation AC07X by the RESTART command.
If the system is working, but you are not satisfied with its function, proceed as follows:
Check the quality of pellets
• Heating value - whether they are really pellets made of wood or whether something has been ad-
ded to them - crumble them and smell
• Colour - caking - white pellets do not cake, dark pellets or pellets with dark dots that contain bark
cake - in such a case the combustion chamber must be cleaned once a day!
If it is not enough to clean the combustion chamber once a day, the pellets contain chemicals which
do not allow pellets to be burned in the A45 burner (biologic waste). Replacement required.
• Dust in pellets - causes uneven operation of the burner and clogging of the burner hose
• Size - too small pellets - reduce the burner power (Ø 5 x 5 mm), long pellets do not fall freely to
the burner and clog the supply pipe.
Check the flue gas temperature
• It should be in the optimal range (150 ÷ 200 °С).
• If the temperature is too low, reduce the power of the burner (decrease parameter T4 and increase
T6) and reduce the quantity of combustion air or clean the boiler.
• If the temperature is too low, increase the power of the burner and quantity of combustion air (in-
crease parameter T4).
Check the level of pellets in the burner mouth
• If it is too low and the burner goes out, check the flue gas temperature (see above). Reduce the
quantity of combustion air or increase the quantity of supplied pellets - increase the power (
increase
parameter
T4
).
• If the pellet level in the burner mouth is too high and the burner exhibits poor combustion - produces
smoke, increase the quantity of combustion air or reduce the quantity of supplied pellets - reduce the
power (
decrease
parameter
T4
).
At the start check how long it takes for combustion quality to improve - how long smoke is released
from the chimney
•
If smoke is released from the chimney at the start for more than 5 minutes, extend the time of
gradual increase to the nominal power (
parameter T10
, e.g. increase by 5min). Be careful about
the setting of the air flap.
The burner regularly does not ignite at the first attempt, but always at the second one
• Extend the time for the supply of ignition fuel (parameter T1 e.g. by 10 s), extend time T2 for ig-
nition of pellets (e.g. to 12 minutes) or reduce the angle of the conveyor (max. 45°).
If after stopping of the burner and its burning out a lot of glowing unburnt pellets remain in the
combustion chamber (mouth) of the burner
• Extend the rundown time of the fan - parameter T5 (e.g. extend the time by 5 minutes) -
never shorten
