KFD ECO MAX 7 R, Инструкция по установке и эксплуатации

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„Installation and operation manual for fireplace insert”
21
5) during the first cycles of lighting up, do not place any objects on the device, in
particular on its lacquered surfaces. Moreover, do not touch lacquered surfaces during
operation of the device,
6)
after the device is “
annealed
”, it may be used like a vehicle engine, avoiding sudden
heating up of the insert which occurs as a result of excessive loading with fuel.
2.3 Adjustment of combustion air supply
Apart from a safe view of fire, a modern fireplace insert ensures clean and effective
combustion of wood. The supply of combustion air in the bottom part of the furnace only does
not guarantee complete combustion of wood. Gases produced as a result of incomplete
combustion are taken off into the chimney, making the chimney dirty and causing heat
losses. To enable complete combustion in the fireplace furnace, the deficiency of air in the
upper part of the furnace, above the surface of fuel must be supplemented, while the supply
from the bottom of the furnace is reduced. Thanks to this modern solution applied in your
fireplace insert, combustion of not only the solid parts of fuel (wood), but also of gases
produced during the primary stage of combustion can be achieved. This solution is referred
to as “secondary combustion” and it is applied in your fireplace insert, guaranteeing higher
efficiency of the device (more heat from the same quantity of wood) and reduced quantity of
contaminations emitted into the atmospheric air we breathe. The structure of your furnace is
designed to cause alteration of air circulation as a result of changing the position of one
adjustment element (lever at the bottom of the furnace), whereas the afterburning system is
constantly supplied with air, irrespective of the lever position.
2.3.1 Adjustment of primary air supply
Primary air is supplied from the bottom, along the furnace board, at a quantity depending on
position of the bottom lever, from the outermost right position (maximum) to the outermost left
position (minimum of primary air). The quantity of primary air ought to be reduced once
flames spread and the temperature increases.
2.3.2 Afterburning of gases
– impact of primary air supply adjustment
Once the process of lighting up ends and the temperature inside the furnace grows enough
to clean the chamotte panels from soot (pyrolysis), primary air supply ought to be reduced,
whereas air supply in the upper zone of the furnace is to be increased. This takes place
automatically once the bottom lever is moved into the central position. If the lever is moved
further to the left, this causes reduction of primary air quantity and slowing down of
combustion along with greater efficiency of gas afterburning. Operation within the range from
the central position of the lever (rated power) to the outermost left position (minimum power)
is the optimum operating range for the KFD ECO insert. Basically, after lighting up and
heating up of the furnace, it is not advisable to use of the insert with considerable primary air
supply, i.e. with the adjustment lever from the centre towards the right. Apart from greater
quantity of contaminations produced as a result of too fast and incomplete combustion, using
the fireplace at such settings may cause excessive growth of power and, as a result, damage
to the fireplace.
In case of insufficiently effective adjustment of combustion rate (usually caused by excessive
negative pressure in the chimney), the flow of smoke should be reduced by means of the
damper.
2.4 Maintenance
The way of using the fireplace and the quality of wood used for combustion are crucial to the
phenomena occurring inside the furnace. This requires periodic inspections and maintenance