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20 - GB
Operation Manual - GB
21. Operation instructions
Preparation of boilers for the operation
Before putting the boiler in operation you must make sure that the system is filled with water and
bled. You must always operate the boiler in accordance with the instructions contained in this manual to
achieve high quality and safety of the functionality of the boiler. The boiler may only be operated by
adult persons. The commissioning of the boiler must be done in accordance with this manual and the
operation manuals attached to the pellets burner by a qualified person.
Before igniting pellets perform several operations. Check all the lids and doors for proper clo-
sing. Check whether the burner is properly tightened to the boiler over the gasket and that the end
switch stop is in its place. Also, check the hose between the burner and the conveyor for proper tensio-
ning and such inclination that allows free falling of pellets to the burner. They must not accumulate in
the hose. The angle of the worm conveyor should be at least 45°; otherwise the boiler may not achieve
the nominal output.
If everything is OK, draw pellets to the conveyor. In the case of the ATMOS A25 burner plug the
power supply cord of the conveyor to a standard 230V/50Hz socket. When pellets start to fall out of the
conveyor, plug the power supply cord of the conveyor back to the socket for normal operation. Turn on
the main switch (green), the switch of the pellet burner and the switch of the automatic deashing system
(if installed).
Adjust combustion of the burner with the use of a flue gas analyzer in the measurement place
(opening) in the flue between the boiler and the chimney. Always adjust the burner in a stabilized
condition, approx. 20 - 30 minutes after fuel ignition. If there is no flue gas analyzer available for the
boiler adjustment at the moment, you can adjust the pellet burner „roughly by guesswork“. Set the
quantity of fuel and combustion air in such a way to stop the flame just before the opposite wall (the
flame should not touch the wall). However, the flames must not turn at the opposite wall. In such a way
add combustion air (open the fan flap) or reduce the fuel supply.
CAUTION - This adjustment does not replace adjustment made with the use of a flue gas ana-
lyzer by a qualified person. Changes of settings of the boiler and burner may only be performed
by a person that is qualified in accordance with all the valid regulations and ČSN EN standards.
Fan of the burner with an air flap.
By opening the air flap you will reduce the
length of the flame.
Burner flame ending 1 - 3 cm before the op-
posite wall.
