Installation Regulations; Gas Connection; Removing The Casing - Beretta EXCLUSIVE C Installer And User Manual

EXCLUSIVE
b
Under the safety valve, install a water collecting funnel with the
corresponding discharge in the event of leaks due to the overpressure
of the heating system. The domestic hot water circuit does not need a
safety valve, but make sure that the pressure of waterworks does not
exceed 6 bar. In case of doubts, install a pressure reducer.
b
Prior to ignition, make sure that the boiler is designed to operate
with the gas available; this can be checked by the wording on the
packaging and by the adhesive label indicating the gas type.
b
It is very important to highlight that in some cases the flues are under
pressure, so the joints of the various elements must be airtight.
3.2

Installation regulations

The installation must be carried out by qualified personnel, in compliance
with the following reference standards:
- UNI 7129-7131
- CEI 64-8.
Always comply with local standards of the Fire Department, the Gas
Company and with possible municipal dispositions.
POSITION
EXCLUSIVE is a wall-hung boiler for heating and for the production of hot
water. There are two categories, depending on the type of installation:
- B23P-B53P boiler type - forced open installation, with flue gas discharge
pipe and pick-up of combustion air from the installation area. If the
boiler is not installed outdoors, the air intake in the installation area is
compulsory;
- C13,C13x; C33,C33x; C43,C43x; C53,C53x; C63,C63x; C83,C83x,
C93,C93x type boiler: appliance with airtight chamber, with flue gas
discharge pipe and pick-up of combustion air from outside.
It does not require an air intake point in the installation area.
This type MUST be installed using concentric pipes, or other types of
discharge designed for condensing boilers with an airtight chamber.
MINIMUM DISTANCES (fig. 6-6a)
To ensure access to the boiler for normal maintenance operations, respect
the minimum installation clearances envisaged.
For correct appliance positioning, bear in mind that:
- it must not be placed above a cooker or other cooking device
- it is forbidden to leave inflammable products in the room where the boiler
is installed
- heat-sensitive walls (e.g. wooden walls) must be protected with proper
insulation.
b
In case of installation it is ESSENTIAL to provide the necessary
space for the introduction of the instrument for the combustion
analysis check. In fig. 6a is shown a sample drawing where the
distances between boiler and cabinet/niche were obtained using a
300mm length tool.
Longer lengths of tools require more space.
3.3 Elimination of air from the heating circuit and
from the boiler
- fig. 7
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to perform the following sequence of
operations:
1. Open by two or three turns the automatic relief valve cap (A) and leave
it open.
2. Open the system filling tap located on the water unit.
3. Switch on the electricity supply to the boiler, leaving the gas tap turned
off.
4. Activate a heat request via the room thermostat or the remote control
panel, so that the 3-way valve goes into heating mode.
5. Activate a request for DHW as follows: open a tap for 30" per minute so
that the three-way valve cycles from heating to DHW and vice versa for
about ten times (in this situation, the boiler will go into alarm due to lack
of gas, therefore reset it whenever this is proposed).
6. Continue the sequence until no more air is felt coming from the air vent
valve.
7. Check the system pressure level is correct (the ideal level is 1 bar).
8. Turn off the system filling tap.
9. Turn on the gas tap and ignite the boiler.
3.4 Positioning the wall-mounted boiler and hydraulic
connections - fig. 8-9
The boiler comes as standard with a boiler support plate. The position and
dimension of hydraulic fittings are shown in the detail drawing.
For the assembly, proceed as follows:
- fasten the boiler support plate (F) to the wall and use a spirit level to
make sure it is perfectly horizontal
- mark the 4 holes (ø 6 mm) envisaged for securing the boiler support
plate (F)
- make sure that all measurements are exact, then drill the wall using drill
tips with the diameters indicated above
- fix the plate with the built-in template to the wall
- carry out the hydraulic connections.
4
3.5 Electrical wiring
Low voltage connections
Carry out the low voltage connections as follows:
- use the external cable box supplied as standard
- unscrew the fixing screws of the cover (V)
- carry out the connections as shown in fig. 11
b
It is recommended to use wires with section not exceeding
0,5mm .
2
b
In case of TA or TBT connection, remove the respective shunts
(fig. 12).
- close the box with the screws that were previously removed
- press the two tabs on the sides of the box to place it correctly in its
housing in the boiler sliding upward within the guide rails
- tighten the safety screw (V1).
b
If the low voltage electrical connection box is not connected the
boiler does not ignite.
High voltage connections
The connection to the mains supply must be made via a separation device
with an omnipolar opening of at least 3.5 mm (EN 60335/1 - category 3).
The appliance works with alternating current at 230 Volt/50 Hz, and is in
compliance with Standard EN 60335-1.
It is obligatory to make the connection with a safe ground/earth, in
compliance with current directives.
b
It is the responsibility of the installer to provide suitable grounding
for the appliance; the manufacturer will not be liable for any damage
resulting from an incorrect or absent earth connection.
b
It is also recommended to uphold the phase-neutral connection (L-N).
b
The earth conductor must be a couple of cm longer than the others.
The boiler can operate with a phase-neutral or phase-phase supply.
For power supplies that are not earthed, it is necessary to use an isolating
transformer with earth-anchored secondary.
It is forbidden to use gas and/or water pipes to earth electrical appliances.
Use the power cable supplied to connect the boiler to the mains power
supply.
If the power cable has to be replaced, use a HAR H05V2V2-F cable, 3 x
0.75mm , Ø max external 7 mm.
2
3.6

Gas connection

The connection of the gas supply must be carried out in compliance with
current installation standards.
Before carrying out the connection, check that the type of gas is that for
which the appliance is set up.
3.7

Removing the casing

To access the components inside, remove the casing as indicated below:
- locate and unscrew the 2 screws (A - fig. 13) that fix the casing to the
boiler
- by leveraging the fixing clips (C - fig. 13), unhook the lower part of the
casing
- lift the casing upwards to release it from the top tabs (B - fig. 13), then
remove it.
WARNING
b
The possible damage of the frontal panel involves the replacement
of the same.
b
The noise absorbing panels inside the front and side walls ensure
the airtight seal for the air supply duct in the installation environment.
b
It is therefore ESSENTIAL after the dismantling operations to
correctly reposition the components so as not to compromise the
boiler's operation.
3.8 Flue gas exhaust and combustion air suction
To evacuate the combustion products, refer to UNI 7129-7131. 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 and the
control board constantly checks that it is operating correctly. It is essential
for evacuating fumes and adduction boiler combustion air that only original
pipes are used and that the connection is made correctly as shown in the
instructions provided with the flue gas accessories.
A single flue can be connected to several appliances provided that every
appliance is the condensing type.
- fig. 10-11