Boring The Boiler Plate; Blast Tube Length; Securing The Burner To The Boiler - Riello RS BLU Serie Instrucciones De Instalación, Uso Y Mantenimiento

5.5.2

Boring the boiler plate

Pierce the closing plate of the combustion chamber, as in Fig. 12.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
mm
RS 55/E BLU 185
5.6

Securing the burner to the boiler

Provide an adequate lifting system of the burner.
Before securing the burner to the boiler, check
(through the opening of the blast tube) that the
probe and electrode are correctly positioned, as in
WARNING Fig. 15.
Separate the combustion head from the rest of the burner,
(Fig. 13). To do this, proceed as follows:
 loosen the screw 3) and remove the hood 1);
 remove screws 2) from the two slide bars 5);
 disconnect the plug 14), unscrew the cable grommet 15);
 remove the screw 4);
 pull back the burner on the slide bars 5) by about 100 mm;
14
1
20040563
D455
A B
275 - 325
2
3 4
Installation
5.5.3

Blast tube length

The length of the blast tube must be selected according to the in-
dications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door com-
plete with its refractory.
The range of lengths available, L (mm), is as follows:
Blast tube 10)
• short
• long
For boilers with front flue passes 13)(Fig. 13), a protection in re-
fractory material 11) must be inserted between the boiler refractory
12) and the blast tube 10). This protection must not compromise
Fig. 12
the extraction of the blast tube.
For boilers with a water-cooled frontal, a refractory lining is not
C
necessary 11)-12) unless expressly requested by the boiler man-
M12
ufacturer.
Tab. H
 disconnect the wires from the probe and the electrode and
then pull the burner completely off the slide bars, after
removing the split pin from the slide bar 5).
 Fix the flange 9) to the plate of the boiler interposing the
insulating gasket 8) supplied.
 Use the 4 screws supplied, with a tightening torque of 35-40
Nm, after protecting their thread with anti-seize products.
WARNING
13
15
13
5
D8149
18 GB
255
390
The seal between burner and boiler must be air-
tight: after the start-up, check there is no leak-
age of flue gases into the external environment.
Carry out all installation operations and mount the
casing again.
12
11
10
9
8
Fig. 13