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KALVIS - 2 - 70 EN 2022.08.22
It is prohibited! To fire the boiler with:
- small fraction (dust) of waste wood, because is a risk of explosion or sparks
emission from the chimney;
- rubbish (household waste);
- with opened ignition damper (8).
Attention! In order to prevent the smoke entering in the room, the upper fuel loading
cover (8), furnace's and fuel loading doors (1, 6) and service covers (12, 27) has
to be tightly closed, except in cases of boiler ignition, refueling or boiler
cleaning.
Attention! The ignition damper (13) (see picture 1) within the boiler firing must be
fully closed !
Attention! The flue duct (15), and other boiler surfaces not covered by the thermo
insulation shields (5) becomes very hot during operation. Do not touch them.
Attention! Don’t overheat (boil) water in the boiler.
7.1.
System preparation for heating
Prior to boiler start firing make sure does the system is filled with thermal water
and de aerated. We recommend to apply the de salted, soft, or at least rainwater. If
there will be used the prepared "soft" water, than the boiler housing will serve for the
longer time. As well it is necessary to make sure does the valves, which are
disconnecting the boiler from the system, are not closed.
7.2.
Boiler start up firing
Before starting the boiler, open the smoke draught damper (
15
) (see
picture 1
),
ignition damper (
13
), through the doors (
1
and
3
) put crushed dry wood or chips onto
fire grate (
29
) and set on fire. Secondary air hole valves (
22
) have to be closed. Valves
are adjusted when temperature in the boiler reaches 60 °C.
When combustion starts, after ignition load is burnt, add more fuel into loading
chamber (
see below how to add more fuel
), close the ignition damper (
19
).
The more fine chopped logs burns more effective and increases the boiler output.
Place firewood loosely into the combustion chamber (furnace) (
30
) so it could sag
down to the bottom of the chamber freely.
If coal is to be used, take 5 - 10 kg firewood and top with 10 cm coal. Coal is to be
poured layer by layer in a number of times, depending on fuel quality and desirable
heat volume.
Attention! When firing the boiler for the first time, also after the long period of non-
operation (after summer season), it is necessary to heat up the refractory
concrete parts for the moisture contained inside, converting into the steam, did
not disintegrate such parts. For this purpose there to be ignited not big amount of
the fuel. Fuel volume must be such that it will burned within 20 – 30 min.
After 2 hours the boiler is ready for normal operation.
Summary of Contents for K-2-70
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