Beretta Mynute S 24 C.S.I. Instrucciones De Instalacion Y Uso página 6

ENGLISH
(**) fitted in boiler
To direct the outlets in the most suit-
able installation way (right air input)
there is an air/flue gas splitter kit
available.
reduced concentric bend kit
If it is necessary to install
Mynute S on existing
systems (replacement
of Ciao N/Mynute range),
there is a "reduced con-
centric bend" kit that
allows boiler positioning
while keeping the same
flue gas hole.
Flue gas flange (F)
Pipe length with
Mynute S
reduced bend [m]
20 C.S.I.
up to 1.85
Ø 41
from 1.85 to 4.25
Ø 43
TWIN OUTLETS (ø 80) (fig. 11)
Twin outlets can be placed in the most suitable direction according
to the room requirements.
The air inlet adaptor must be correctly oriented, it is therefore
necessary to fix it using the appropriate screws, so that the
locating tab does not interfere with the casing.
When necessary, the flue gas flange (F) must be removed using
a screwdriver as a lever. The table indicates the permitted linear
lengths. According to the length of the pipes used, it is necessary
to insert a flange, selecting one from those contained in the boiler
(see the following table).
Pipe length
ø 80 [m]
up to 3,5+3,5
from 3,5+3,5 to 9,5+9,5
from 9,5+9,5 to 14+14
from 14+14 to 20+20
28 C.S.I. - 28 R.S.I.
Pipe length
ø 80 [m]
up to 1+1
from 1+1 to 5+5
from 5+5 to 8+8
from 8+8 to 14,5+14,5
35 C.S.I. - 35 R.S.I.
Pipe length
ø 80 [m]
up to 4+4
from 4+4 to 8+8
(**) fitted in boiler
6
air/flue gas
Load losses for
each bend (m)
Mynute S
45°
24 C.S.I.
Ø 44
1
no flange
24 C.S.I.
Load losses for each
Flue gas
bend (m)
flange (F)
45°
Ø 42
Ø 44 (**)
1,2
Ø 46
not installed
Load losses for each
Flue gas
bend (m)
flange (F)
45°
Ø 41
Ø 43 (**)
1,2
Ø 45
not installed
Load losses for each
Flue gas
bend (m)
flange (F)
45°
Ø 49 (**)
1,2
not installed
B22P/B52P Suction indoors and discharge outdoors
C12-C12x Discharge via concentric wall outlet. The pipes may leave the
boiler independently, but the outlets must be concentric or sufficiently
close together to be subjected to similar wind conditions (within 50 cm)
C22 Discharge via concentric outlet in common smoke pipe (suction and
splitter
discharge in the same pipe)
C32-C32x Discharge via concentric roof outlet. Outlets as for C12
C42-C42x Discharge and suction in common separate smoke pipes, but
subjected to similar wind conditions
C52-C52x Separate discharge and suction lines on wall or roof and in ar-
eas with different pressures. The discharge and suction lines must never
be positioned on opposite walls
C62-C62x Discharge and suction lines using pipes marketed and certified
separately (1856/1)
C82-C82x Discharge via
single or common smoke
pipe and wall suction line
C92-C92x Discharge on
roof (similar to C32) and
air suction from a single
existing smoke pipe
90°
1.5
3.5 Fumes exhaustion and air suction (Mynute S C.A.I. E)
Observe applicable legislation regarding flue gas exhaustion.
The exhaust system must be made using rigid ducting, the joints
between elements must be hermetically sealed and all compo-
nents must be resistant to heat, condensation and mechanical
stress and vibration.
Non insulated outlet pipes are potential sources of danger.
The apertures for the combustion air must be realised in compli-
ance with applicable legislation. If condensation forms, the exhaust
duct must be insulated.
Figure 12 shows a top-down view of the boiler with the dimensions
for the flue gas exhaust outlet.
Flue gas safety system
The boiler features a system monitoring that flue gases are cor-
rectly exhausted which arrests the boiler in the event of a fault:
flue gas thermostat, fig. 11b. To restore normal operation, turn the
function selector to
function selector into the desired position.
If the fault persists, call a qualified technical from the Technical
90°
Support Service. The flue gas exhaustion monitoring system must
never be bypassed or rendered inoperable. Use only original re-
placement parts when replacing the whole system or faulty system
components.
1,7
3.6 Filling the heating system (fig. 13)
Once the hydraulic connections have been carried out, fill the heat-
ing system. This operation must be carried out with cold system
following this instructions:
- turn by two or three turns the automatic relief valve cap (I)
- make sure the cold water inlet tap is open
90°
- turn on the filling tap (L fig. 13 for C.A.I. - C.S.I. - external for
R.S.I.) until the pressure indicated by the water pressure gauge
is between 1 and 1.5 bar.
Once filling is complete, close the filling tap.
1,7
The boiler has an efficient air separator so no manual intervention
is needed. The burner switches on only if the air relief phase is
finished.
3.7 Emptying the heating system
To empty the system, proceed as follow:
- switch off the boiler
90°
- loose the boiler outlet tap (M)
- empty the lowest points of the system.
1,7
3.8 Emptying the domestic hot water (only for C.A.I. - C.S.I.
model)
When there is risk of frost, the domestic hot water system must be
emptied in the following way:
C52 C32 C32
C82 C22 C22 C42
C12
(3 fig.1a), wait a few seconds, then turn the
B22P
C42
B52P
C52 C12