Unigas IDEA LG280 Manual Of Installation - Use - Maintenance Download

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C.I.B. UNIGAS - M039132CD

MOUNTINGS AND CONNECTIONS

Packing

The burners are despatched in cardboard packages whose dimensions are: 800mm x 540mm x 480mm (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.

Burner with gas train;

gasket to be inserted between the burner and the boiler;

envelope containing tis 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

make a hole on the closing door of the combustion chamber as described on paragraph “Overall dimensions”)

place the burner to the boiler: lift it up and handle it according to the procedure described on paragraph “Handling the burner”;

place the stud bolts (5) on boiler’s door, according to the burner drilling template described on paragraph “Overall dimensions”;

fasten the stud bolts;

place the gasket on the burner flange;

install the burner into the boiler;

fix the burner to the stud bolts, by means of the fixing nuts, according to the next picture.

After fitting the burner to the boiler, ensure that the gap between the blast tube and the refractory lining is sealed 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

spacer to move the burner backwards or to design a blast tube tha suites the utilisation (please, contact the manifacturer).

Fig. 6

Key

a) Heat output in kW
b) Length of the flame tube in meters
c) Flame tube firing intensity in MW/m

d) Combustion chamber diameter (m)

Fig. 6 - Firing intensity, diameter and lenght of the test flame tube as a function of the heat
input in kW.

Keys