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Mareli Systems
4.1 Solid fuel operation
Heating with solid fuel can be done in two ways:
TOP HEATING – place the solid fuel in the combustion chamber on top of the pipes (there should be no ash).
e dra regulator is in the maximum position. Light the re at the top with a small piece of wood or charcoal.
When the re starts burning, the dra regulator will be set to the desired temperature/position.
BOTTOM HEATING - place a small amount of solid fuel in the combustion chamber on top of the pipes
(there should be no ash) and light the re. e dra regulator is in the maximum position. When the re starts
to burn, add more fuel and set the dra regulator to the desired temperature/position.
Make sure the boiler doors are closed while the boiler is in use.
In the event of an uncontrolled increase in pressure and temperature of the water in the boiler, determined by
various factors (such as the interruption of the electricity supply, which would lead to the interruption of the
operation of the circulation pump, the failure of the circulation pump, or the uncontrolled ingress of air into sys-
tem), cut o any air supply to the boiler and nally extinguish the re if this is safely possible (provided there are
no ammable materials in the area). In the event of a power outage, place the dra regulator in the zero position
and the boiler ue dra ap in the closed position.
It is mandatory to pay special attention to the pressure in the installation which must be within the allowed
range (>1.5 bar for closed systems). If the pressure is below the critical value, stop the operation of the boiler and
rell the system only aer the boiler cools down.
e water hardness will not exceed the recommended value.
It is not allowed to extinguish the re in the boiler articially. It is forbidden to splash water in the combustion
chamber.
At the end of the cold season, clean the boiler of ash and soot and treat the combustion chamber with a corro-
sion protection agent.
In case of mechanical problems (the dra regulator is blocked, the circulation pump is faulty) stop the operation
of the boiler rst; carry out repair work only when the boiler has cooled down.
4.2 Boiler cleaning and maintenance
It is recommended to clean the boiler of ash once or twice a week or whenever necessary to allow the air re-
quired for combustion to enter through the damper of the dra regulator. A more thorough cleaning of the
boiler is recommended once a month and at the end of the cold season.
Regular maintenance extends the life of the boiler. Cleaning will be carried out through the lower and upper
doors of the boiler but also through the opening on the back.
PROTECTIVE GLOVES ARE OBLIGATORY!
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