Technical information

17
2.6 Boiler commissioning
This boiler can only be commissioned by a professional assembly firm authorized to do this activity.
2.6.1 Verification activities before commissioning
Before the boiler put into operation it is necessary to check:
a) filling the heating system with water (thermomanometer check) and the system tightness;
b) connection to the chimney – this connection can only be done with the agreement of a chimney
firm (chimney revision);
c) closing of smoke adapter partition (impurities associated with the installation of the boiler chimney
system);
d) draught regulator and thermostatic valve functionality.
2.6.2 Boiler commissioning
1. Fire a boiler
2. Bring the boiler to the necessary operating temperature. The recommended output water temperature is
80 C.
3. Adjust the draught regulator including the chain length (according to the enclosed draught regulator
manual).
4. Check the functionality of two-way safety valve DBV 1 - 02.
5. Operate the boiler in the operating condition according to the relevant standards.
6. Check again the boiler tightness.
7. Acquaint the user with the operation and maintenance.
8. Make a record in the Guarantee certificate.
2.7 Control and safety elements
Rosette of stoking door is used for primary air supply into the combustion chamber.
Stifling system in ash door regulates the supply of secondary combustion air under the grate of boiler.
It is controlled with the draught regulator or manually setting screw of the stifling system. The second draught
regulator (for size 8 – 10 cells) regulates the rear stifling system. The regulator is adjusted on the same
temperature as the regulator in the front boiler part.
The rose in the rear boiler part is used for the tertiary air inlet, which has to be slightly opened according to
the size of the boiler at 0 - 5 mm (at 3 and 4 boiler sections the air rosette is set on the rear boiler section to
0 - 1 mm and at 5 -10 boiler sections it is gradually increased as needed). In the front part of the boiler there
is a small ashtray for the supply of tertiary air supply. On the small ash pan there are stops for the gaps
between cell and ash pan assuring because of the air inlet. It is also possible, in case of necessity, to
enlarge this gap.
The combination appliance – thermo-manometer – is used for the heating water temperature and the water
stress in the heating system detection. The pit of the thermo-manometer sensor is located in the upper part
of the front boiler cell.
2.8 Equipment for surplus heat withdrawal
The two way safety vent DBV 1 - 02 serves for surplus heat removal in case the water temperature in
boiler exceeds 95 °C.
In case the system is equipped with a two way safety vent and the boiler becomes overheated (the output
temperature exceeds 95 °C) the two way safety vent creates a cold water circuit which is kept until the
temperature drops below the limit temperature. At this moment there are simultaneously closed the
discharge cooling equipment and the cold water inlet of refilling the system.
The two way safety vent DBV 1 – 02 technical data (from the firm Regulus)
Opening temperature (limit): 100 °C (+0° - 5 °C)
Maximum temperature: 120 °C
Maximum stress on boiler side 400 kPa (4 bar)
Maximum stress on water side 600 kPa (6 bar)
Nominal flow at p 100 kPa (1 bar): 1,9 m
3
/h