Operating Position; Preparing The Boiler; Boring The Boiler Plate; Blast Tube Length - Riello RLS 70 Manual

5.4

Operating position

 The burner is set up to operate only in
positions 1, 2, 3 and 4 (Fig. 9).
 Installation 1 is preferable, as it is the only
one that allows the maintenance operations
ATTENTION
as described in this manual.
 Installations 2, 3 and 4 permit operation but
make maintenance and inspection of the
combustion head more difficult.
 Any other position could compromise the
correct operation of the appliance.
 Installation
reasons.
DANGER
5.5

Preparing the boiler

5.5.1

Boring the boiler plate

Pierce the closing plate of the combustion chamber, as in Fig. 10.
The position of the threaded holes can be marked using the
thermal insulation screen supplied with the burner.
Model (mm)
RLS 70 185
RLS 100 195
RLS 130 195
5.5.2

Blast tube length

The length of the blast tube must be selected according to the
indications provided by the manufacturer of the boiler, and in any
case it must be greater than the thickness of the boiler door
complete with its fettling. The range of lengths available, L (mm),
is as follows:
Model (mm) RLS 70
Standard 250
Extended 385
For boilers with front flue passes 13) or flame inversion
chambers, a protection in heat-resistant material 11) must be
inserted between the boiler fettling 12) and the blast tube 10).
This protection must not compromise the extraction of the blast
tube.
For boilers with a water-cooled front piece, a refractory lining 11)-
12)(Fig. 11) is not necessary, unless expressly requested by the
boiler manufacturer.
20168481
5 are forbidden for
A B
275 - 325
275 - 325
275 - 325
D455
RLS 100 RLS 130
250
385
Installation
1
D7739
safety
5.5.3

Securing the burner to the boiler

C
Separate the combustion head from the rest of the burner
M 12
(Fig. 11):
M 12  disconnect the light oil pipes unscrewing the two unions 6);
 loosen the 4 screws 3) and remove the cover 1);
M 12
 remove screws 2) from the two slide bars 5);
Tab. F
 remove the two screws 4) and pull the burner back on slide
bars 5) by about 100 mm.;
 disconnect the electrode cables, then completely unthread
the burner from the slide bars.
Fig. 10
250
385
ATTENTION
Tab. G
18 GB
2 3
Provide an adequate lifting system.
The seal between burner and boiler must be
airtight.
4 5
Fig. 9
D1172
Fig. 11