Sirijus 20, 30
Sirijus 20, 30
Sirijus 20, 30 (13.05) V1 LT Sirijus 20, 30 (13.05) V1 LT
5.2. CHIMNEY AND FLUE
When connecting the boiler to the chimney with metal pipes, they should be made of
metal sheet with the thickness at least 2 mm.
A chimney and a flue must comply with construction codes and regulations.
A hole of the chimney, depending on the type of the boiler, must be no less than
diameter of the flue connection, specified in the Technical Data Table (see Section 2).
When connecting the boiler to a separate chimney, no other devices can be connected
to it.
The chimney draft, depending on the type of the boiler, is specified in the Technical Data
Table (see Section 2).
It is highly important for the chimney to be erected above the highest point of the roof.
The chimney must be provided with a cleaning opening. The chimney and the flue
should be cleaned before the start of the heating season and then every 3 months.
It is recommended to install a stainless steel liner in the chimney against damaging
effects of condensation moisture and exhaust gases.
The flue, connecting the boiler to the chimney, should be as short as possible and rise in
the direction of the chimney. The recommended maximum length of the horizontal flue is up to
1.5m.
5.3. CONNECTION TO THE HEATING SYSTEM
Requirements for connection to the heating system:
-
The boiler must be connected to the heating system according the project
developed by heat technology specialists, either, the works may be carried out independently by a
highly qualified, well-experienced plumber - welder, who has got well familiarized with the boiler
design and with this description.
-
The boiler can be connected to the heating system (incl. an expansion tank),
with the operating pressure no higher than 1.5 bar.
-
If the system pipes are equipped with valves that switch off the boiler from the
heating system, they should be fully opened. To avoid an accident due to negligence, after
opening the valves, please, remove their handles.
-
The system must be equipped with a safety valve, which maintains the
maximum operating pressure of 1.5 bar in the heating system.
-
To avoid condensation, which can shorten the life span of the boiler by several
times, the heating system must be installed in such a way so that the temperature of the return
heat carrier (water) is at least 60°C. Such a temperature of the heat carrier (water) is too high for
heating a living space, therefore, a minor heating circuit of heating system should be installed. For
the purpose, the system should be equipped with a three-way or four-way valve or a thermostat.
-
The system must be equipped with a recycling pump, mounted in the return
water line to ensure a better circulation of the heat carrier and a more even distribution of
temperature in the boiler. If the circulation water pump is fitted in the water supply line, there is
generated a direct water flow in the boiler, whereby the water poorly distributed and mixed in the
boiler, especially in the upper front part of the boiler. There may emerge a significant temperature
difference between the water in the upper front part and at the outlet of the boiler. The
temperature controller and the thermometer are mounted on the top front of the boiler, thus, when
the recycling pump is in the wrong place, it can result in inaccurate adjustment of the air damper
position, while the boiler will not work in the optimal mode.
In order to fill the chamber1 with a fuel during combustion, open the chimney valve 3 and
close a secondary air supply valve 17. Hang off the chain 11 from the primary air suction valve 8;
the valve, as well as the bottom door 16 must be closed. Then, carefully semi-open the top door,
wait 2-3 seconds, and carefully open the top door. The smoke should not enter the room. If the
room gets smoked, it means that any of the valves may be still closed, or the primary air suction
valve is still opened. After loading a fuel to the chamber, hook the chain 11 to the primary air
suction valve 8 for the normal fuel burning monitoring process. Open the secondary air supply
valves 17.
When the burning is in progress, ashes cover the firegrating, therefore burning intensity
decreases, and boiler output capacity drops, as well. For this reason, the fuel must be shaken and
raked. You must rake through the slots in the inner door. Take the ashes away in time. Strewn
ash heap hinders primary air access to the combustion zone.
When in use, the boiler should operate within 100-80% limits of its rated output capacity.
To ensure such operating conditions, if there is a need, heat accumulators (accumulation tanks)
should be employed.
When firing the wood, you can load the chamber fully and set the fire. Mixed fuel
provides the longest duration of burning in the combustion chamber, for instance, wood, coal, and
sawdust. Good results can be obtained when burning a mixture of coal 60% and sawdust 40%
(according to weight).
NOTICE! When firing coal, only a half the chamber can be stocked, while firing
other kinds of fuel, you can load the chamber fully provided that the fuel does not fall off
over the top door
.
NOTICE! Firing household waste in the boiler is strictly prohibited.
In particular, all
types of plastics waste. The boiler is not intended for that. Firing this type of waste not only sots
the boiler and the chimney walls, but also discharges, along with the smoke, a lot of emissions to
the environment. Save the nature - and your health!
Try to use as a dry fuel as possible
. This will improve the efficiency of the boiler,
increase its power output. Keep in mind that a part of the heat, generated during combustion, is
consumed for evaporation of the water contained in the fuel; so, the more water is in the fuel, the
more heat is consumed for it
– and the less of it remains for space heating.
To extend the chamber burning process, use high-calorific fuel
. Also, note that the
chamber burning duration depends on the loaded volume of firewood, as well as on its weight.
From time to time, if necessary, clean the boiler and the chimney
. Be sure to clean
the boiler from soot and tar at the end of the heating season. Otherwise, water and various acids,
accumulated in the resin, can cause damage to the walls of the boiler.
At the end of the heating season, do not leave the system dewatered, since the boiler
will start to rust from the inside.
6.4. CLEANING
The ash accumulated under or over the firegrating, can hinder air access to the
combustion chamber. Therefore, before each heating, we recommend to clean the ash from the
ash box and the firegrating. Do not collect the ash to combustible vessels - plastic containers,
cardboard boxes, and so on. We recommend to use a metal container for the ash. Do not pour
out the ashes in recycle bins or other combustible places because of possible fire hazard. Wait for
it to cool down completely. You can use the ash as fertilizer as well.
To ensure the efficient operation of the boiler, clean the accumulated ashes and soot
from inner surfaces of the boiler. Cleaning frequency depends on the thickness of the
accumulated ashes and soot layer, which, in turn, is subject to the nature of the heating. A
regularly used boiler should be cleaned 2-3 times a month.
NOTICE! Do not clean the boiler during its heating.
