Table des Matières
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Mynute Green C.S.I. E - R.S.I. E
"FORCED OPEN" INSTALLATION (TYPE B23P/B53P)
Fumes outlet duct Ø 80 mm (fig. 12)
The fumes outlet duct can be aimed in the most suitable direction
for installation needs.
To install follow the instructions supplied with the kit.
In this configuration, the boiler is connected to the Ø 80 mm fumes
outlet duct by means of a Ø 60-80 mm adaptor.
The B23P/B53P configuration is forbitten in case of installa-
tion in pressurised collective chimney
In this case, the combustion supporting air is taken from the
room in which the boiler is installed, (which must be a suitable
technical room with proper ventilation).
Non-insulated fumes outlet ducts are potential sources of
danger.
The fumes outlet duct must be inclined 3° towards the boiler.
The boiler automatically adapts ventilation according to the
type of installation and the length of the duct.
Max length fumes
outlet duct Ø 80 mm
12 R.S.I.
15 R.S.I.
20 R.S.I. - 25 C.S.I. - 25 R.S.I.
30 C.S.I.
35 R.S.I.
38 C.S.I.
CONCENTRIC OUTLETS (ø 60-100) (fig. 13)
The concentric outlets can be placed in the most suitable direction
for the requirements of the installation, respecting the maximum
lengths shown in the table.
The fumes outlet duct must be inclined 3° towards the boiler.
Non-insulated fumes outlet ducts are potential sources of
danger.
The boiler automatically adapts ventilation according to the
type of installation and the length of the duct.
Do not obstruct or narrow the comburent air inlet duct in any way.
To install, follow the instructions supplied with the kits.
Rectilinear length means without bends, outlet ends and con-
nections
Max. linear length concentric
duct Ø 60-100 mm
12 R.S.I. - 15 R.S.I.
20 R.S.I. - 25 C.S.I. - 25 R.S.I.
30 C.S.I.
35 R.S.I.
38 C.S.I.
Concentric ducts (Ø 80-125)
The relative adapter kit must be installed for this configuration.
Concentric ducts can be arranged in the most suitable direction for
installation requirements.
To install, follow the instructions provided with the specific kits for
condensation boilers.
Rectilinear length means without bends, outlet ends and con-
nections.
8
Load losses for each
bend (m)
45°
90°
90 m
80 m
60 m
1
1,5
47 m
40 m
45 m
Load losses for each
bend (m)
45°
90°
7,85 m
7,85 m
7,85 m
1,3
1,6
7,85 m
3,85 m
Max. linear length concentric
duct Ø 80-125 mm
12 R.S.I. - 15 R.S.I.
20 R.S.I. - 25 C.S.I. - 25 R.S.I.
30 C.S.I.
35 R.S.I.
38 C.S.I.
Twin ducts (Ø 80 mm) (fig. 14)
The twin ducts can be aimed in the most suitable direction for in-
stallation needs.
To install, follow the instructions supplied with the specific kits for
condensation boilers.
The fumes outlet duct must be inclined 3° towards the boiler.
The boiler automatically adapts ventilation according to the
type of installation and the length of the ducts. Do not ob-
struct or narrow the ducts in any way.
The maximum lengths of individual pipes are shown in the
graphs (fig. 15).
The use of longer ducts will reduce the power output of the
boiler.
Rectilinear length means without bends, outlet ends and con-
nections.
Linear length twin
duct Ø 80 mm
12 R.S.I.
15 R.S.I.
20 R.S.I.
25 C.S.I. - 25 R.S.I.
30 C.S.I.
35 R.S.I.
38 C.S.I.
Pressurised collective chimney (for 25kW)
The B23P/B53P configuration is forbitten in case of in-
stallation in pressurised collective chimney.
Maximum pressure of the pressurised collective chimney
must not exceed the 35 Pascal.
Maintenance in case of pressurised collective chimney must
be performed as indicated in the specific chapter "Mainte-
nance".
4 - IGNITION AND OPERATION
4.1 Preliminary checks
First ignition is carried out by competent personnel from an autho-
rised Technical Assistance Service Beretta.
Before starting up the boiler, check:
a) that the supply networks data (electric, water, gas) corresponds
to the label data
b) that piping leaving the boiler is covered by thermal insulation
sheath
c) that flue gas extraction and air suction pipes work correctly
d) that conditions for regular maintenance are guaranteed if the
boiler is placed inside or between furniture
e) the seal of the fuel adduction system
f) that fuel capacity corresponds to values requested by the boiler
g) that the fuel supply system has the correct capacity for the nec-
essary capacity to the boiler and that it has all the safety and
control devices prescribed by current regulations.
4.2 Appliance ignition
Every time the appliance is powered up, a series of data is shown
on the display including the flue gas sensor meter reading (-C- XX);
the automatic purge cycle then starts, lasting around 2 minutes.
Load losses for each
bend (m)
45°
14,85 m
14,85 m
14,85 m
1
14,85 m
10 m
Load losses for each
bend (m)
45°
60+60 m
50+50 m
40+40 m
36+36 m
1
30+30 m
26+26 m
30+30 m
90°
1,5
90°
1,5
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