PART II: INSTALLATION
15
Fitting the burner to the boiler
To perform the installation, proceed as follows:
1
drill the furnace plateas decribed in paragraph (“Overall dimensions”);
2
place the burner towards the furnace plate: lift and move the burner by means of its eyebolts placed on the top side (see”Lifting and
moving the burner”);
3
screw the stud bolts (5) in the plate holes, according to the burner’s drilling plate described on paragraph “Overall dimensions”;
4
place the ceramic fibre rope on the burner flange (if necessary, use a spray adhesive on the flange).
5
install the burner into the boiler;
6
fix the burner to the stud bolts, by means of the fixing nuts, according to the picture below.
7
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).
The burner is designed to work positioned according to the picture below. For different installations, please contact the Technical
Department.
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 type of the blast tube (type 1 or type 2). Verify
the necessary input and the pressure in combustion 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 manu-
facturer. In absence of these consider the following:
Cast-iron boilers, three pass flue boilers (with the first pass in the rear part): the blast tube must protrude no more than
Dist
= 100
mm into the combustion chamber. (please see the picture below)
Pressurised boilers with flame reversal: in this case the blast tube must penetrate
Dm
50 ÷ 100 mm into combustion chamber in
respect to the tube bundle plate.(please see the picture below)
Note: the figure is indicative only.
Keys
1
Burner
2
Fixing nut
3
Washer
4
Ceramic fibre plait
5
Stud bolt
7
Blast tube
4
SIDE UP
SIDE DOWN
Dist. = 100 mm
DM = 50 ÷ 100 mm
A
B
B
A
Dist.
DM
A
: ceramic fibre
B
: refractory wall
Summary of Contents for N1300A
Page 43: ...PART IV MAINTENANCE 47...
