Mareli Systems PB 40, Руководство по сборке и эксплуатации

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Mareli Systems
If the facility does not operate satisfactorily:
• Check the quality of pellets (must be free from dust). Upon normal operation of the burner, the quantity
of the pellets on the grate (combustion basin) must be such so that its holes are covered.
• Check the exhaust temperature (175- 240°C).
• If the temperature is very high, decrease the pellets fed. If the temperature is very low, increase the
amount of input air.
It is important to replace faulty parts immediately!!!
Always keep in stock additional photo sensor and heater for replacement.
The criterion for good operation of the burner is the colour of the flame - IT MUST BE YELLOW. When it is
dark red, mixed with smoke it is most likely that the volume of input air is less than required for good com-
bustion and must be increased.
Adjustment of the air affects essentially the combustion mode, the aim must be a calm, stable combustion,
without residue.
Sometimes, if the initial loading dose for ignition is large (Parameter 02), “choking” of the burner may occur,
i.e. it may not ignite and upon re-activation of the ignition (second attempt) the basin may clog up with pel-
lets. The volume of the first dose must be decreased so as to avoid choking.
NOTE: It is desirable when adjusting the burner settings to use exhaust gas analyser.
IMPORTANT:
Default values of the parameters should not be taken for granted. The settings must be adjusted individually
according to REQUIRED POWER, TILT OF THE SCREW CONVEYOR, QUALITY OF PELLETS, CHIM-
NEY DRAUGHT, CUSTOMER REQUIREMENTS!
Switching off the burner and the boiler
Switching off the automated pellet burner should be done according to the guidelines in its manual. After
cooling of the boiler, the burner also should be switched off. It is also recommended that the facility is cleaned
from the accumulated ash.
An emergency stop of burner and boiler
During operation of the automated pellet burner an emergency situation may arise. Some situations of this
kind are recorded by the burner controller and a procedure for their prevention is automatically performed.
The monitoring controller also indicates the burner status. In the event of an accident check the reason for its
occurrence and take appropriate measures for its removal.
ATTENTION
: In the event of emergency situation - overheating the boiler, the additionally mounted manda-
tory emergency thermostat is activated. Determine the cause of this accident and take appropriate measures
for its removal. This thermostat must be manually switched by unscrewing and removing the protective cap
and pressing its button until it switches, then replace back the protective cap. Also, the burner needs to be
restarted by switching it off and on.