6
CONDITION FOR A GOOD INSTALLATION
Before proceeding with installation, check that:
1)
The chimney (cross section and height) complies with the boiler manufacturer’s instructions and local
standards.
2)
When it is necessary to make a refractory lining for the combustion chamber (if the type of boiler requires it),
then it must be made according to the specific instructions of the boiler manufacturer.
3)
The electric power supply line for the burner should be according to our diagram and the electrical connections
on the burner should match the voltage of the electric power supply line.
4)
Fuel pipelines should be made according to our diagram.
5)
The nozzle(s) fitted on the burner should be suitable for the boiler capacity; replace them with others if
necessary.
In no case should the quantity of fuel delivered exceed the maximum amount required by the boiler and the
maximum amount permitted for the boiler.
Remember that the combustion head has been designed for nozzles with a 45° spray angle.
Only in special cases can nozzles with a different spray angle be fitted; in these cases, however, make sure that
the nozzle with a different spray angle will not cause problems (flame separation, disk or combustion head
fouling, violent ignition, etc.).
6)
When removing the protective plastic cap from the nozzle seat be careful because if the sealing surface is
indented (a slight scoring would be enough) it will cause fuel dripping.
7)
Before connecting the flexible pipes, remove the plastic protective caps from the pump fittings.
FASTENING THE BURNER TO THE BOILER
The burner must be applied to the boiler’s iron plate, where the stud bolts given as standard accessories have already
been fitted in accordance with the plate drilling.
It is advisable to electrically weld the stud bolts to the internal part of the plate to avoid extracting them together with the
unit’s locking nuts, should the burner be disassembled.
The insulating flange must be placed between the burner and the boiler plate.
The relative nuts and washers required for connecting the burner to the boiler have been supplied as standard accesso-
ries. The unit is equipped with a cylindrical combustion head; it is advisable to fasten the boiler’s iron plate first and then
the burner. When the boiler door is not fitted with heat insulation, it is necessary to insert an insulating protection at least
10 mm. thick between the plate and the boiler. The boiler plate should be according to our drawing and have a minimum
thickness of 10 mm. in order to avoid possible deformation.
FUEL PIPELINE (LIGHT OIL)
The following description covers the basic requirements to ensure efficient operations.
The unit is equipped with a self-suction pump capable of sucking oil directly from the cistern also for the first fill-up.
This statement is only valid if the required conditions exist (refer to the table of distances and differences in levels).
To ensure efficient operations, it is preferable to make suction and return pipes with welded fittings and to avoid the use
of threaded connections which often cause air infiltration’s and disturb pump operations and consequently those of the
burner. Where a removable fitting is required, use the welded flange method with a fuel resistant gasket inserted to
ensure a perfect sealing. For systems requiring pipes with a relatively small diameter, we recommend the use of
copper pipes. For unavoidable connections we recommend the use of biconic fittings.
The attached tables show diagrams of the different types of systems depending on the position of the tank with respect
to the burner. The suction pipe should run up-slope towards the burner to avoid the possible formation of gas bubbles.
Where more than one boiler is installed in one boiler room, it is essential that each burner has its own suction pipe.
Only return pipes can lead to a single manifold pipe with an adequate cross section leading to the cistern.
Never connect the return pipe directly to the suction pipe.
It is advisable to properly insulate the suction and return pipes to prevent cooling which would effect the unit’s efficiency.
Pipe diameters (to be strictly complied with) are listed in the following tables.
The maximum amount of vacuum that the pump can withstand when operating regularly and silently is 35 cm. of Hg ; if
this limit is exceeded, normal pump operations can no longer be guaranteed.
Maximum suction and return pressure = 1 bar.
Summary of Contents for BT 180 DSG
Page 15: ...15 GENERAL DIAGRAM AIR REGULATION N 8608 3...
Page 18: ...18 POMPA BALTUR MODELLO BT BALTUR PUMP MODEL BT BOMBA BALTUR MODELO BT N 0002900580...
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