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3 INSTALLATION
3 1 Installation standards
The installation must be carried out by qualified personnel,
in compliance with the following reference standards:
- UNI-CIG 7129
- UNI-CIG 7131
- UNI 11071
- CEI 64-8
Always comply with local standards of the Fire Department,
the Gas Company and with possible municipal disposi-
tions.
Positioning
The
VERVE i
are wall-mounted boilers that can be installed:
- in indoor locations, even adjacent to the relative
building, positioned in covered areas, provided that
they are structurally separate and do not have any
common walls, or else on the flat roof of the relative
building, again without any common walls. The boil-
er can operate in a temperature range from -15°C to
+60°C. For details please refer to the "Frost protec-
tion" section. All the optional kits that can be connect-
ed to the boiler must be protected on the basis of
their electric protection level.
- in buildings intended for other uses, or in rooms in-
cluded within the volume of the relative building.
These rooms must be exclusively reserved for the
heating systems.
WARNING
The installation of appliances powered by gas with a den-
sity greater than 0,8 (L.P.G.) is only permitted in above-
ground rooms, even adjoining other above-ground rooms.
In both cases the walking surface must not have any de-
pressions or sunken areas, as these could create potential-
ly hazardous pockets of gas.
There are two categories, based on the type of installation:
1 Type B23P-B53P boilers (forced open installation), with
discharge pipe and combustion air extraction from the
installation area. If the boiler is not installed outdoors,
air intake in the installation area is compulsory.
2 Type C13, C13x; C23; C33, C33x; C43, C43x; C53,
C53x; C63, C63x; C83, C83x boiler: appliance with air-
tight 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 condensation boilers with an
airtight chamber.
Minimum distances
The distances between any external points of the boiler
and the vertical and horizontal walls of the room must allow
for access to the adjustment, safety, and control devices,
as well as ordinary maintenance operations.
In order to ensure the proper positioning of the appliance,
the following points must also be taken into consideration:
- - it must not be placed above a cooker or other cook-
ing device
- - it is forbidden to leave inflammable products in the
room where the boiler is installed
- any heat-sensitive walls (e.g. wooden walls) must be
protected with proper insulation.
Aeration and Ventilation of the installation areas
The installation areas must have one or more permanent
ventilation openings on the exterior walls. The ventilation
openings may be protected using metal grates, mesh and/
or rain covers, provided that the net area of the ventilation
opening is not compromised.
The ventilation openings must be created and positioned in
such a way as to prevent the formation of pockets of gas,
independently of the cover's shape.
Ventilation for installation in buildings intended for oth-
er uses, or in rooms included within the volume of the
relative building
The ventilation area must not be less than 3000 cm
2
in the
case of natural gas, and must not be less than 5000 cm
2
in
the case of L.P.G.
Refer to the Italian Ministerial Decree of 12 April 1996 for
further indications.
IMPORTANT
Before installation, wash every system piping carefully in
order to remove any residues that may impair the operation
of the appliance.
Under the safety valve, install a water collecting funnel with
a relative drain in the event of any leaks due to excessive
heating system pressure
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.
It is very important to highlight that in some cases the
smoke pipes are under pressure, so the joints of the various
elements must be airtight.
Frost protection
The electronic devices that manage the heating unit come
with an anti-freeze function. When the delivery temperature
drops below a certain minimum value, the burners are acti-
vated at the minimum power level, based on the operating
parameters.
b
In order for the anti-freeze system to function prop-
erly, however, the electrical power and gas supplies
must be present, and the water circuit must be prop-
erly pressurized.
If deemed necessary by the designer, glycol can be added
to the circuit (up to a maximum of 50%), keeping in mind
that this will result in significant losses in efficiency, as it
alters the specific heat of the fluid itself.
Furthermore several parts of the system could be dam-
aged by altering the pH.
