Use and maintenance manual model “UNICA 10 V/C” - WOOD
ENGLISH
7
The assembly position must be chosen based on
the environment, the discharge and the chimney
flue. Check, with your local authority, if there are
more restrictive provisions regarding the oxidising
air intake, the smoke discharge system including
the chimney flue and chimney pot.
The manufacturer cannot be held in any way
liable in the event of installation non-compliant
with legislation in force, of incorrect premises
air exchange or electrical connection non-
conforming with standards and/or inappropriate
use of the appliance
.
Installation must be carried out by a qualified
technician, who will issue the purchaser with a
Declaration of Conformity for the system and will
assume complete responsibility for final installation
and resulting good operation of the product.
In particular, he should ascertain:
• there is an adequate oxidising air intake and
good smoke discharge compliant with the type of
product installed;
• other stoves or devices installed do not cause
negative pressure in the room where the product
is installed (only for hermetic appliances, a
maximum of 15 Pa depression in the surroundings
is permitted);
• when the product is on, there is no smoke back
draught in the surroundings;
• smoke evacuation is implement in total safety
(dimensioning, smoke seal, distances from
flammable materials..).
Once the position is decided where to install the
product, you need to pay attention:
•
if the floor is made of combustible material, you
should use protection in suitable material (steel,
glass...) which also protects the front part from any
falling burning fuel during cleaning operations:
•
that the floor guarantees adequate load
capacity if the existing building does not meet
this requirement, you should take appropriate
measures (for example a load distribution plate).
3.1 AIR INTAKE
Il The installation premises of non-hermetic
appliances must be sufficiently ventilated with
specific openings, with particular attention on
the position (they must NEVER be blocked), which
consent air reintegration in the environment.
The air must be taken directly from outside (not
from other rooms, garage, etc.) and must have
a net useful section equal or higher than 80 cm2
pellet burning stoves and thermostoves (EN 14785)
and 100 cm2 for boilers (EN 303-5).
The air intake is not necessary for installation of the
hermetic appliances that take air directly from
outside. Check and comply with the ventilation
requirements for simultaneous operations with
other combustion devices and in the presence
of forced ventilation systems or hoods (refer to
section 6.4 of UNI 10683).
3.2 SMOKE CHANNEL AND FITTINGS
The term smoke channel indicates the piping
connecting the appliance to combustion with the
chimney flue.
For heat generating appliances with an electric
fan to expel the smoke, the following installation
instructions must be followed, provided by the
manufacturer concerning the maximum length
and number of curves the smoke channels can
have. If no indications are given for maximum
values or deriving from preliminary calculations
according to UNI EN 13384-1, the following
provisions must be applied:
• comply with the product standard EN1856-2;
•
the horizontal sections must have a minimum
slope of 3% upwards;
•
the length of the horizontal section must be
minimal and its projection on plan must not
exceed 2 metres;
• the number of changes of direction including
introduction in the chimney flue must not exceed
2;
• the changes of direction must not have an angle
over 90° (45° curve recommended);
• the section must have a constant diameter equal
to the output of the fireplace up to the fitting in
the chimney flue;
•
it is forbidden to use flexible metal and fibre
cement piping, furthermore the piping must
guarantee pressurised sealing;
• the smoke channels must not cross premises in
which installation is forbidden of combustion
appliances;
• Use watertight piping with silicone gaskets.
In any case, the smoke channels must be sealed
by combustion and condensate products, as
well as insulated if passing inside the installation
premises.
Assembly is not permitted of draught manual
adjustment devices on forced draught appliances.
You need to install a first vertical smoke channel
section of at least 1 metre to guarantee correct
smoke ejection.
3.3 CHIMNEY FLUE
When installing the chimney flue, the following
provisions must be applied.
• comply with the product standard EN 1856-1;
• it must be installed using materials suitable to
guarantee resistance to normal mechanical and
chemical stress, and have a correct insulation, to
avoid the formation of condensate, therefore it
must be hermetically insulated;
• have a mainly vertical state and not be choked
along its length;
