pg. XXXI
8
8
8
8
8
SMOKE EXHA
SMOKE EXHA
SMOKE EXHA
SMOKE EXHA
SMOKE EXHAUST
UST
UST
UST
UST TUBE
TUBE
TUBE
TUBE
TUBE
Due to the frequent accidents caused by poor functioning of flue outlets installed in private dwellings, we have prepared the
following paragraph to assist the installer in his inspection of the parts concerned with eliminating the gases produced by
combustion. The smoke exhaust must be installed in compliance with UNI7129/92, UNI 10683 and EN14785 and must respect
the following reference values: The instructions provided in the regulations mentioned above must be accurately followed:
Otherwise severe damages may occur for the product, the installation, objects and the people who use the generator.
8 . 1
8 . 1
8 . 1
8 . 1
8 . 1
VENTILA
VENTILA
VENTILA
VENTILA
VENTILATION OF
TION OF
TION OF
TION OF
TION OF THE R
THE R
THE R
THE R
THE ROOMS
OOMS
OOMS
OOMS
OOMS
• It is essential for the room in which the appliance is installed to be well-ventilated, also to guarantee air for combustion in the heater / boiler. The
natural air flow occurs directly through permanent apertures to the outside made in the walls of the room, or by means of single or multiple
ventilation ducting.
The ventilating air must come from outside and if possible, away from sources of pollution. Indirect ventilation is also allowed by taking in air from
rooms adjacent the one where the insert eater is installed taking into account all the warnings and limitations specified below.
•The apertures in the walls must comply with the following requirements:
- -have an unobstructed section of at least 6cm² for each Kw of installed thermal power, with a minimum limit of 100cm²;
- be made in such a way that the vent openings, both on the inside and outside of the wall, cannot be obstructed;
- be protected with grills or similar systems in order not to reduce the section described above;
- be situated at floor-level.
•The air flow can also be obtained from an adjacent room as long as:
- the adjacent room is equipped with direct ventilation in compliance with the points described above;
- in the room to be ventilated the installed appliances are only connected to one flue outlet;
- the adjacent room is not used as a bedroom or a common area of the building;
- the adjacent room is not a room with a fire hazard, such as storage sheds, garages, combustible material store rooms, etc...;
- the adjacent room does not become a vacuum compared to the room to be ventilated due to an opposite draught effect;
- the air flow from the adjacent room to the room to be ventilated is unobstructed through the permanent apertures having an overall net section
of no less than that indicated above. These apertures can be obtained by enlarging the space between the door and the floor.
This chapter is not intended to replace UNI 7129/92, UNI 10683 and EN 14785 standards to which it refers. The qualified
installer must in any case be fully aware of this standard and its amending versions.
8.2
8.2
8.2
8.2
8.2
COMB
COMB
COMB
COMB
COMBUSTION
USTION
USTION
USTION
USTION AIR INT
AIR INT
AIR INT
AIR INT
AIR INTAKE
AKE
AKE
AKE
AKE
The air required for combustion can be taken in from the environment in which the heater H2O / boiler Compact is installed. The room where it
is installed must always be adequately ventilated (1300 m3/h) .
CAUTION: The presence of extraction fans or similar appliances, if operating in the same room or space in which the heater
H20 / boiler Compact is installed, could cause problems for the correct operation of the heater / boiler.
8 . 3
8 . 3
8 . 3
8 . 3
8 . 3
SMOKE OUTLET
SMOKE OUTLET
SMOKE OUTLET
SMOKE OUTLET
SMOKE OUTLET
•The smoke exhaust shown in the following figures is the best solution to ensure the discharge of smoke even when the fan is not operational,
such as for example if there is an electrical power failure. A minimum drop of 1.5 metres is required between the T terminal on the outside of the
building and the outlet at the back of the appliance, to ensure that residual combustion smoke is discharged in the case described above
(Otherwise the residues would stagnate inside the firebox and be discharged out to the free atmosphere).
The figures below illustrate the best solution for discharging the smoke out through the roof or into the flue outlet. If you opt to discharge the
smoke out through the roof it is important to operate as shown in the figure below on the left. Insert a union tee with inspection cap, connecting
brackets suitable for the height of the flue outlet, flashing that crosses the roof and chimney cap to protect against bad weather conditions. If you
decide to use a classic masonry outlet see the diagram below on the right. A union tee with inspection cap and suitable supporting brackets are
required. If the flue outlet is too big we recommend inserting a stainless steel or porcelain-coated steel tube with a diameter not exceeding
150mm. Seal area where the inlet and outlet part of the smoke exhaust meets the wall. It is strictly forbidden to apply mesh to the end of
the outlet tube, as it could cause the heater / boiler to malfunction. If the smoke tube is installed in a fixed position it is advisable to
provide inspection openings for clean-out purposes especially in the horizontal sections. See the diagram. These openings are essential to allow
for the removal of ash and unburned products which tend to accumulate along the discharge path. The appliance operates with the
pressure in the combustion chamber lower than atmospheric pressure, whereas the discharge of smoke to the chimney is
slightly pressured, consequently the discharge system must be hermetically sealed. The smoke discharge tube must be made from
suitable materials such as for example: porcelain-coated steel tubes, and the various fittings sealed with red silicone (resistant to 350°C). The
outer casing of the tube must be made with insulating material (mineral wool, ceramic fibre) or use pre-insulated tubing.
The flue outlet must be able to withstand the action of a fire (in case of fire call the fire brigade immediately).
