Electric Connection; Gas Connection - Beretta QUADRA II 24 C.S.I. Manual De Instalacion Y Uso

ENGLISH
ANTI-FREEZE SYSTEM
The boiler is fitted as standard with an automatic anti-freeze system
that activates when the temperature of the water in the primary
circuit falls below 6 °C. This system is always active, guaranteeing
boiler protection to an outdoor temperature level of -3 °C. To take
advantage of this protection (based on burner operation), the boiler
must be able to switch itself on; any lockout condition (e.g. lack of
gas/electricity supply, or safety device intervention) therefore deac-
tivates the protection. The anti-freeze protection is also active when
the boiler is on standby. In normal operation conditions, the boiler
can protect itself against freezing. If the machine is left unpowered
for long periods in areas where temperatures may fall below 0 °C,
and you do not want to drain the heating system, you are advised to
add a specific, good quality anti-freeze liquid to the primary circuit.
Carefully follow the manufacturer's instructions with regards not
only the percentage of anti-freeze liquid to be used for the minimum
temperature at which you want to keep the machine circuit, but also
the duration and disposal of the liquid itself.
For the domestic hot water part, we recommend you drain the cir-
cuit. The boiler component materials are resistant to ethylene glycol
based anti-freeze liquids.
3.2 Securing the boiler to the wall and hydraulic connections
To fasten the boiler to the wall, use the cardboard template (fig.
4-5) in the packaging. The position and size of the hydraulic con-
nections are indicated below:
M heating outlet
AC DHW outlet
G
gas connection
AF DHW inlet
R heating return line
In case of replacement of Beretta boilers from previous type, there
is an adaptation kit of hydraulic connections available.

3.3 Electric connection

The boilers leave the factory completely wired with the power cable
already connected and they only need the connection of the ambient
thermostat (AT) to be carried out in the specific terminals.
To access the terminal board:
- turn off the system general switch
- undo the fixing screws (A) of the shell (fig. 6)
- move forward and then upwards the shell base to unhook it from
the chassis
- undo the fixing screws (B) of the instrument panel (fig. 7)
- turn the instrument panel upside down
- remove the terminal board cover (fig. 8)
- insert the cable of the possible T.A. (fig. 9)
The ambient thermostat must be connected as indicated on the
wiring diagram.
Ambient thermostat input in safety low voltage (24 Vdc).
The connection to the mains supply must be carried out through a
separation device with an omnipolar opening of at least 3.5mm (EN
60335-1, category III).
The appliance operates with an alternating current of 230 Volt/50
Hz and an electrical power of 116W for 24 C.S.I. (and complies with
the standard EN 60335-1).
It is compulsory to carry out connection with an efficient earth
circuit, according to national and local legislation.
It is advisable to comply with neutral phase connection (L-N).
The earth wire must be a couple of centimetres longer than the
others.
Do not use gas and/or water pipes to earth electrical ap-
pliance.
The manufacturer declines liability for any damage if the appliance
was not connected to an earth circuit.
Use the power cable supplied to connect the boiler to the mains
power supply.
If the power cable is replaced, use a cable type HAR H05V2V2-F,
3 x 0.75 mm 2 , with max. outside diameter 7 mm.

3.4 Gas connection

Before connecting the appliance to the gas network, check that:
- national and local regulations are complied
- the gas type is the one suitable for the appliance
- the piping is clean.
4
3/4"
1/2"
3/4"
1/2"
3/4"
The gas pipe must be installed outdoor. If the pipe goes through
the wall, it must go through the central opening, in the lower part
of the template.
It is advisable to install a filter of suitable dimensions on the gas line
if the distribution network had solid particles.
Once the appliance has been installed check that connections are
sealed according to current installation regulations
3.5 Fumes exhaustion and air suction
For fumes exhaustion, refer to the current local and national regula-
tions. Always comply with local standards of the Fire Department,
the Gas Company and with possible municipal dispositions.
The release of combustion products is assured by a centrifugal fan
placed inside the combustion chamber and its correct operation
is constantly checked by a pressure switch. The boiler is supplied
without the flue gas outlet/air suction kit, since it is possible to use
the accessories for appliance with a forced draught sealed chamber
that better adapts to the installation characteristics.
It is essential for flue gas release and the restoration of boiler com-
bustion air to use certified pipes and that connection is carried out
correctly as indicated by the instructions supplied with the flue gas
accessories.
With only one smoke pipe you can connect more pieces of appli-
ance provided that every piece of appliance is sealed chamber type.
"FORCED OPEN" INSTALLATION (TYPE B22P/B52P)
Fumes outlet duct Ø 80 mm (fig. 10a)
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.
When necessary, the flue gas flange (F) must be removed using a
screwdriver as a lever.
The boiler automatically adapts ventilation according to the type of
installation and the length of the duct.
24 C.S.I.
Pipe length
Flue gas flange
ø 80 [m]
2
from 2 to 8
from 8 to 25
(**) fitted in boiler
CONCENTRIC OUTLETS (ø 60-100)
The boiler has been designed to be connected to concentric outlet/suc-
tion pipes and with the opening for air suction (E) closed (fig. 10b). The
concentric outlets can be places in the most suitable direction according
to room requirements, complying with the maximum lengths indicated
in the table. For installation, follow the instructions supplied with the kit.
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 follow-
ing table). 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).
24 C.S.I.
Pipe length
ø 60-100 [m]
up to 0,85
from 0,85 to 2,35
from 2,35 to 4,25
(**) fitted in boiler
Load losses for each
bend (m)
(F)
45°
Ø 42
1,2
Ø 44 (**)
not installed
Load losses for each
Flue gas
bend (m)
flange (F)
45°
Ø 42
1
Ø 44 (**)
not installed
90°
1,7
90°
1,5