Bedienungsanleitung Atmos A85 (Seite 57 von 66) (Englisch)

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Operation and Maintenance Manual - EN

www.atmos.cz EN-57

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

added to them - crumble them and smell

• Colour - caking - white pellets do not cake, dark pellets or pellets with dark dots that contain bark

cake.

If the pneumatic cleaning does not manage to clean the burner combustion chamber sufficiently,

shorten the times defined by parameters S42 and S43. When the two hour time span for cleaning is

not sufficient, the pellets contain impurities that make it impossible to burn these pellets in a A85

burner (biological waste). Must be replaced.

• 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 (130 ÷ 220 °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

(increase 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

ignition of pellets (e.g. to 15 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

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Atmos A85 Seite 57

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