13
MOUNTINGS AND CONNECTIONS
Packing
The burners are despatched in cardboard packages whose dimensions are: 400mm x 300mm x 520mm (L x P x H)
Packing cases of this type are affected by humidity; the maximum number of cases to be stacked is indicated outside the packing.
The following are placed in each packing case.
1
Burner with gas train;
1
gasket to be inserted between the burner and the boiler;
1
envelope containing this manual
When disposing of the burner packing and if the packing is scrapped follow the procedures laid down in the current legislation regarding
the disposal of materials.
Fitting the burner to the boiler
To install the burner into the boiler, proceed as follows:
1
on the boiler’s door hole, fix the 4 stud bolts according to the drilling template showed on paragraph “Overall dimensions”
2
fix the flange of the burner to the boiler;
3
install the burner into the boiler;
4
according to the reference showed on Fig. 2, fix the flange to the boiler’s stud bolts
D
, without completely fastening;
5
loosen the
VS
screws in order to let the blast tube move back and forth;
6
install the burner making the blast tube move into the flange as to reach the right position according to the boiler/utilisation
7
fasten the
VS
screws:
8
tighten the 4 stud blolts
D
completely;
9
seal the space between the blast tube and the refractory lining with appropriate insulating material (ceramic fibre cord or refractory
cement).
Matching the burner to the boiler
The burners described in this manual have been tested with combustion chambers that comply with EN676 regulation and whose
dimensions are described in the diagram . In case the burner must be coupled with boilers with a combustion chamber smaller in dia-
meter or shorter than those described in the diagram, please contact the supplier, to verify that a correct matching is possible, with
respect of the application involved. To correctly match the burner to the boiler verify the necessary input and the pressure in combu-
stion chamber are included in the burner performance curve; otherwise the choice of the burner must be revised consulting the burner
manufacturer. To choose the blast tube lenght follow the instructions of the boiler manufacturer. In absence of these consider the fol-
lowing:
Cast-iron boilers, three pass flue boilers (with the first pass in the rear part): the blast tube must protrude no more than 100 mm into
the combustion chamber.
Pressurised boilers with flame reversal: in this case the blast tube must penetrate at least 50 - 100 mm into combustion chamber in
respect to the tube bundle plate.
The length of the blast tubes does not always allow this requirement to be met, and thus it may be necessary to use a suitably-sized
Fig. 1
Fig. 2
VS
D
D
