Beretta Exclusive Boiler Green HE 25 B.S.I. Manuel D'installation Et D'utilisation page 7

- each time the electricity supply to the boiler is switched on, an
automatic vent cycle lasting about 2 minutes starts, and the dis-
play reads "SF", and the "functions selectors"
quence. Press the
ing cycle.
NOTE: air extraction from the boiler takes place automatically,
through two automatic bleeding valves, C and E.
NOTE: the boiler is also equipped with a semi-automatic filling sys-
tem. The first system-filling operation must be carried out by open-
ing tap H with the boiler turned off.
CH system emptying
Before starting to empty it, remove the electrical feeder by position-
ing the general switch for the system on "off".
- Close the interception devices for the thermal system
- Open the automatic air vent valve (C)
- Unscrew the drain valve (B) by hand, keeping the elbow on the
hose in position to prevent it coming out of its seating
- The water from the system is discharged through the outlet col-
lector (A)
- Emptying out the lowest parts of the system.
DHW system emptying
The hot water system must be emptied every time there is risk of
freezing by:
- turning off the stopcock at the mains
- unscrew the cap on the hose adapter (G)
- connect a plastic hose to the hose adapter of the storage boiler
drain valve (G)
- open the valve drain device
- turning on all the hot and cold taps
- emptying out the lowest parts of the system.
ATTENTION
The outlet collector (A) must be connected, by means of a rubber
pipe, to a suitable collection and evacuation system in the storm
water outlet and in compliance with current regulations. The
external diameter of the collector is 20 mm: we therefore suggest
using an Ø18-19 mm pipe, to be closed with a suitable clamp (not
supplied). The manufacturer is not responsible for any damage
caused by the lack of a collection system.
Suggestions to correctly eliminate air from the heating system
and boiler (fig. 8)
During the initial installation phase, or in the event of a maintenance,
you are advised to perform the following sequence of operations:
- Switch off the power supply to the boiler.
- Using a CH11 spanner open the manual air vent valve located
above the air box; the tube supplied with the boiler must be
connected to the valve to let out the water into an outside
container.
- Turn on the system filling tap on the hydraulic unit and wait until
the water starts coming out of the valve. Make sure that it comes
only water.
- Close the manual air vent valve with the CH11 spanner.
- Turn off the system filling tap until the water pressure indicated
by the hydrometer reaches 1-1.5 bar.
- Switch on the power supply to the boiler leaving the boiler in OFF
mode. Check that the gas tap is closed.
- The boiler, now, starts the vent cycle. Perform it by checking
that there is no air inside the boiler and that the pressure does
not drop too much (otherwise repeat the operations described
above).
- Turn on the gas tap and ignite the boiler.
10- FUMES EXHAUSTION AND BURNING AIR
SUCTION
EXHAUSTION CONFIGURATIONS (fig. 9)
Boiler is homologated for the following exhaustion configurations:
B23P-B53P Suction in room and discharge outside
C13-C13x Concentric wall exhaustion. Pipes can separately start
from boiler, but outlets must be concentric or close
enough to be subject to similar wind conditions (within
50 cm)
C23
Concentric exhaustion in common chimney (suction
and exhaustion in the same chimney)
C33-C33x
Concentric roof exhaustion. Outlets like C13
C43-C43x
Exhaustion and
chimneys, but subject to similar wind conditions
light up in se-
button to interrupt the automatic vent-
suction in common
C53-C53x
Wall or roof separate exhaustion and suction in
different pressure areas. Exhaustion and suction must
never be located on opposite walls
C63-C63x
Exhaustion and suction with separately certified and
sold pipes (1856/1)
C83-C83x
Single or common chimney exhaustion and wall
suction
C93-C93x
Discharge on roof (similar to C33) and air suction from
a single existing smoke pipe
Refer to regulations in force for exhaustion of combustion products.
Boiler is provided for without fume exhaustion/air suction kit, since
forced draught sealed chamber accessories can be used, as they
better adapt to installation characteristics. For fume extraction and
burning air restoration in boiler, use original pipes or other EC-cer-
tified pipes with equivalent characteristics; check connection is cor-
rect as shown on instructions fume accessories provided for with.
More appliances can be connected to a single chimney, provided
that all appliances are sealed chamber type.
The maximum lengths of the ducts refer to flue systems avail-
able in the catalogue.
"FORCED OPEN" INSTALLATION
(TYPE B23P-B53P, intake inside and outlet outside)
Fumes outlet duct ø 80 mm - fig. 13
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.
In this case, the combustion supporting air is taken from the
room in which the boiler is installed, which must be a suitable
and ventilated technical room.
Non-insulated fumes outlet ducts are potential sources of
danger.
Provision must be made for a 3° slope of the fumes outlet
duct towards the boiler.
max length fumes
outlet duct ø 80 (m)
25 B.S.I.
35 B.S.I.
INSTALLATION "SEALED" (TYPE C)
Boiler is a C-type appliance (sealed chamber) and must be safely
connected to fume exhaustion duct and burning air suction duct,
both getting outside; appliance cannot operate without these ducts.
Concentric outlets (ø 60-100) - fig. 11
Concentric ducts may be placed in the most suitable direction for
installation requirements but special care must be taken as regards
the external temperature and the length of the duct.
Horizontal
max. linear length
concentric duct ø 60-100 (m)
7,85
Vertical
max. linear length
concentric duct ø 60-100 (m)
8,85
Rectilinear length means without bends, outlet ends and con-
nections.
The fumes outlet duct must slope by 3° towards the conden-
sate collector.
Uninsulated fumes outlets are potential hazards.
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.
separate
To install follow the instructions supplied with the kit.
pressure drop
for each bend (m)
45°
50
1
60
pressure drop
for each bend (m)
45°
1,3
pressure drop
for each bend (m)
45°
1,3
ENGLISH
90°
1,5
90°
1,6
90°
1,6
7