Sirijus 20, 30
Sirijus 20, 30
Sirijus 20, 30 (13.05) V1 LT Sirijus 20, 30 (13.05) V1 LT
6. OPERATION OF THE BOILER
NOTICE! The boiler can be serviced only by adults who have read the boiler operation
manual.
Before firing the boiler for the first time, please check the following:
- the heating system is filled in,
- the air is removed from the heating system,
- the cleaning openings of the chimney channels are closed.
The inner surfaces of the boiler can dew when you fire the boiler at low output capacity
- when the temperatures of heat carrier and burning products in the boiler are low (mostly it
happens in early autumn or spring when demand for heat is not strong). To avoid dewing, we
recommend you:
- as fast as possible reduce difference between temperatures of discharge and return
heat carrier.
-
maintain the temperature of return heat carrier not lower than 60°C.
6.1. FIRING
Please fully open the chimney valve 3 (see Picture 1), and close secondary air supply
valve 17. After opening a bottom door 16 and an inner door 9, place the chopped dried
firewood or wood chips on the firegrating 6 and fire them.
NOTICE! When firing the boiler, the top door 15 must be closed
.
6.2. ADJUSTMENT OF DRAFT CONTROL
Draft control "Honeywell" FR124 is included to the scope of supply of the boiler. Draft
control is established in accordance with his instructions.
The draft control should be screwed in when filling the heating system with the heat
carrier (water) so that water could almost run through the tube of the draft control. Then, using a
grind or a sealing tape, please seal the thread joint of the draft control; screw in the draft control
into the special slot. When screwing in the draft control during filling of the system, you can for
sure avoid an airlock in that place and improve the performance of the draft control.
When firing the boiler for the first time, you need to adjust the draft control.
The gap between divisions of the thermostat is 10°C. Heat the water in the boiler up to
70°C, hook a chain 11 (see Picture 1) from the temperature controller lever 12 to the primary air
suction valve 8, at the bottom door. Adjust the temperature controller lever so that the scale
reading could match the reading of the boiler thermometer, the length of chain 11 is selected so
that the primary air suction valve is closed. Keep in mind that the bolt, that fixes the temperature
controller lever to the plug, should be in front, while the lever should be positioned as shown on
Picture 1, that is, sloped forward up to the angle of ~ 30°. If all the doors are hermetically closed
and the boiler operates at power no less than 50%, the further combustion process is
automatically maintained by the temperature controller according to the preset temperature of
the heat carrier.
6.3. HEATING
When
the fuel gets fired, please close the inner door 9 and the bottom door 16. Open the
top door 15 and add for fuel. After heating up the boiler, close the top door. Thus, smoke in the boiler
will form curves, and the heat carrier will take a maximum amount of heat. Open secondary air supply
valve 17. You can monitor boiler operation according to the colour of chimney discharge smoke. The
smoke must be thin and light. If the smoke is thick and dark, the secondary air supply does not
suffice.
Recommended scheme of boiler connection to the system is provided on Picture 2.
The boiler operates efficiently at rated power, therefore, it is recommended to install an
accumulation tank into the heating system. The minimal capacity of the accumulation tank is
calculated according to the formula:
Where:
V
Sp
- capacity of the accumulation tank, l;
T
B
- burning time, hr,
Q
n
- rated power of the boiler, kW,
Q
H
- minimal heating power to heat premises, kW,
Q
min
- minimal heating power of the boiler, kW.
Capacity of the accumulation tank is approximately calculated with the assumption that a
minimal capacity of the accumulation tank of 50 litres comes up to every kilowatt of rated power of
the boiler.
Picture 2
Recommended scheme of boiler connection to the system with accumulation tank
1. Boiler. 2.Accumulation tank “Vienybe - AT...” 3.Water heater. 4. Expansion tank. 5.Recycling
pump. 6.Water strainer. 7.Shutter. 8.Reverse valve. 9.Thermostat. 10.Manometer 11.Bleed
valve. 12.Safety valve. 13.Three-way mixing valve. 14. Temperature controller of the recycling
pump. 15. Thermostatic cooling valve “Regulus” DBV-1. 16.Drainage.
