34
product description
Connecting the Flue
The boiler is designed to operate in B mode (by
drawing air from the room) and in C mode (by
drawing air from outside).
When installing an exhaust system be careful
when handling the seals, in order to avoid fl ue
gas leaking into the air circuit.
Horizontally-installed piping must have a
downward incline of 3% so as to avoid the
build-up of condensate.
When type B installation is used, the room in
which the coiler is installed must be ventilated
using a suitable air inlet which complies with
current legislation. In rooms where corrosive
vapours may be present (for example, laundry
rooms, hair studios, rooms where galvanic
processes take place, etc.) it is important
that type C installation is used, with air for
combustion drawn from outside. In this way
the boiler is protected from the eff ects of
corrosion.
When implementing coaxial suction/exhaust
systems the use of authentic accessories is
obligatory.
The fl ue gas exhaust ducting must not be
in contact with or placed near fl ammable
materials, and must not cross building
structures or walls made using fl ammable
material.
When replacing an old boiler, the ventilation
and fl ue gas exhaust system must always be
replaced.
The fl ue gas exhaust ducting joint should be
created using a male/female coupling and a
seal. Couplings should always be arranged
so that they go against the direction of the
condensate fl ow.
Types of boiler - fl ue exhaust connection
- coaxial connection of the boiler to the
suction/exhaust ducting
- split connection of the boiler to the exhaust
ducting with air suction from outside
- split connection of the boiler to the exhaust
ducting with air suction from the room.
Products which are resistant to condensate
must be used in the connection between the
boiler and the fl ue gas exhaust. For details
relating to connection lengths and direction
changes, please consult the “exhaust types”
table.
The suction/exhaust ducting connection kits
are supplied separately from the appliance,
according to diff erent installation solutions.
The boiler is set up for connection to a coaxial
suction and fl ue gas exhaust ducting system.
If there is any loss of pressure in the piping,
please refer to the gas fl ue accessories
catalogue. Supplementary resistance must
be borne in mind during the sizing process
mentioned above.
For the calculation method, equivalent length
values and installation examplesplease refer to
the gas fl ue accessories catalogue.
Electrical connections
For increased safety, ask a qualifi ed technician
to perform a thorough check of the electrical
system.
The manufacturer is not responsible for any
damage caused by the lack of a suitable
earthing system or by the malfunctioning of
the electricity mains supply.
Make sure that the system is able to withstand
the maximum power absorbed by the boiler
(this is indicated on the appliance data plate).
Check that the section of the wires is suitable
and is not less 0,75 mm
2
The appliance must be connected to an
effi
ecient earthing system if it is to operate
correctly.
The power supply cable must be connected to
a 230V-50Hz network, where the L-N poles and
the earth connection are all respected.
In the event that the power supply cable must
be changed, replace it with one with the same
specifi cations.
Important!
Connection to the electricity mains supply
must be performed using a fi xed connection
(not with a mobile plug) and a bipolar switch
with a minimum contact opening of 3 mm
must be fi tted.
The use of multiplugs, extension leads or
adaptors is strictly prohibited.
It is strictly forbidden to use the piping from
the hydraulic, heating and gas systems for the
appliance earthing connection.
The boiler is not protected against the eff ects
caused by lightning. If the mains fuses need to
be replaced, use 2A rapid fuses.
H05V2V2-F
120
140
warnings