
5
ENGLISH
1 WARNINGS AND SAFETY 
b The boilers manufactured in our factories are checked even in 
the smallest details in order to protect users and installers against 
        
must check the electrical wiring, in particular the stripped part of 
leads, which must not protrude from the terminal board and avoiding 
possible contact with live parts of the leads themselves.
b This installer and user manual constitutes an integral part of the 
product: make sure they are always kept with the appliance, even 
if it is transferred to another owner or user, or moved to another 
heating system. In case of loss or damage, please contact your local 
.
b 
in accordance with current regulations.
b The installer must instruct the user about the operation of the 
appliance and about essential safety regulations.
b This boiler must only be used for the application it was designed for. 
The manufacturer accepts no liability within or without the contract 
for any damage caused to people, animals and property due to 
installation, adjustment and maintenance errors or to improper use.
b
This appliance should not be operated by children younger than 8 years, 
-
rienced people who are not familiar with the product, unless they are 
given close supervision or instructions on how to use it safely and are 
made aware by a responsible person of the dangers its use might entail. 
Children must not play with the appliance. It is the user’s responsibility to 
clean and maintain the appliance. Children should never clean or main-
tain it unless they are given supervision.
b           
   
you purchased the appliance.
b The safety valve outlet must be connected to a suitable collection 
and venting system. The manufacturer declines all liability for any 
damage caused due to any intervention carried out in the safety 
valve.
b The seal of the condensate drainage connection line must be secure, 
and the line must be fully protected against the risk of freezing (e.g. 
by insulating it).
b 
and the relative connection pipe are free of obstructions.
b Dispose of all the packaging materials in the suitable containers at 
the corresponding collection centres.
b Dispose of waste by being careful not to harm human health and 
without employing procedures or methods which may damage the 
environment.
b 
waste collection centre.
b During installation, inform the user that:
- 
- periodically check that the operating pressure of the hydraulic 
system is comprised between 1 and 1,5 bar. If it is not, request 
.
b If the boiler is not used for a long period of time, it is recommended 
to perform the following operations:
- 
- close the fuel and water valves for the heating system
- empty the heating circuit if there is the risk of freezing
b Boiler maintenance must be carried out at least once a year; this 
to ensure the necessary safety standards.
 
urban waste, but rath
        
waste collection centre.
For safety reasons, please remember that:
a It is forbidden to touch the appliance while barefoot or if parts of your 
body are wet.
a It is forbidden to activate electric devices or appliances such as 
switches, household appliances and so on if you notice a smell of 
fuel or unburned fuel. In this case:
- ventilate the room by opening the doors and windows;
INSTALLATION MANUAL
EN ENGLISH - c;
- 
.
a 
the appliance from the main power supply by turning the system’s 
a Do modify the safety or adjustment devices without the manufacturer’s 
authorisation and precise instructions. 
a It is prohibited to pull, detach or twist the electrical cables coming 
from the appliance even if it is disconnected from the mains power 
supply.
a 
installation room.
a          
where the device is installed.
a It is forbidden to disperse the packaging material in the environment 
and leave it within children’s reach as it may be a potential source 
of danger. It must be disposed in accordance with the present law.
a The condensate drain outlet must be turned towards the drain outlet 
avoiding the formation of more siphons.
a Never carry out any work on the gas valve.
a Only for the user:
by professionally qualified personnel.
2 
DESCRIPTION
EXCLUSIVE        
system. This new control system, developed by Beretta, ensures 
whose information allows the control board to operate the gas valve that 
regulates the fuel.
This sophisticated control system provides the auto-regulation of the 
         
.
EXCLUSIVE is a type C condensing wall-hung boiler that is able to operate 
as follows:
- CASE A:water tank connected. The boiler 
does not provide domestic hot water.
- CASE  B:      water tank managed by a 
thermostat: in this condition, the boiler delivers hot water to the water 
tank whenever a demand is made by the relative thermostat.
- CASE C:water tank (accessory kit available 
by request) managed by a temperature probe for the production of DHW. 
If the water tank is not supplied by our company, make sure that the 
3435 ±1%.
          
     
.
In B23P       
be installed in bedrooms, bathrooms, showers or where there are open 
must have proper ventilation. Detailed requirements for the installation of 
7129-7131. 
C, the appliance can be installed in any type of room (there 
are no limitations due to ventilation conditions or room volume). 
3 INSTALLATION
3.1 Cleaning the system and characteristics of the water
In the case of a new installation or replacement of the boiler, it is necessary 
to clean the heating system. To ensure the device works well, top up 
        
agents, etc.) and check the parameters in the table are within the values 
indicated.
PARAMETERS UM HEATING CIRCUIT 
WATER FILLING WATER
pH value 7-8 -
Hardness °F - <15
 - clear
Fe mg/kg 0,5 -
Cu mg/kg 0,1 -
b Before installation, wash all system piping carefully in order to 
remove any residues that may impair the operation of the appliance.
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 
.