Connection And Maintenance Of Ventilation (Optional); Allowed / Not Allowed Fuels - Nordica FOCOLARE 80 BIFACCIALE HYBRID Manuel Utilisateur

B ) FORCED CONVECTION:
By installing a centrifugal fan, it is possible to distribute hot air to adjacent rooms by means of ducts with a length up to 4 meters. In this case,
do not remove the underlying semi-blanks (see
The covering of each product is equipped with 4 outputs with a diameter of 150 mm for the connection of pipes resistant to heat.
a) Perform the drilling on the walls or on the existing hood to allow the passage and the application of the (fire-resistant) hoses with a 15
cm diameter equipped with related openings.
b) Fasten the pipes by means of clamps to the related collars and openings, after having removed the semi-blanks caps.
c) Each pipe must not exceed 2 m of length for natural ventilation and 4 m for forced ventilation, and has to be insulated with insulating
materials to avoid noise and dispersion of heat.
d) The openings have to be positioned at a height not lower than 2 m from the floor to avoid that hot air at output meets people. Please
respect the distance of the convection openings according to the local construction norms;
e) The lengths of the canalization pipes must have the same length to avoid the distribution of differing quantities of air from each
output (see Picture 12).

CONNECTION AND MAINTENANCE OF VENTILATION (OPTIONAL)

The control unit and the plant must be installed and connected by authorized personnel according to the standards in
force. (see chapter GENERAL REMARKS).
ATTENTION: the control unit and the feeding cable must not be in contact with hot parts.
On our products, it is possible to install Optional ventilation kits suitable to improve the distribution of heat by ventilation only either of the
installation room or of the adjacent local (see chapter EXTERNAL AIR INTAKE).
For the connection of the ventilation kit, please see the instructions manual CONNECTION AND MAINTENANCE OF VENTILATION OPTIONAL.

ALLOWED / NOT ALLOWED FUELs

Allowed fuels are logs. Use exclusively dry logs (max. content of water 20%). Maximum 3 logs should be loaded. The pieces of wood
should have a length of ca. 20-30 cm and a maximum circumference of 30-35 cm.
Compressed not worked-out wood briquettes must be used carefully to avoid overheating that may damage the device,
since these have a very high calorific value.
The wood used as fuel must have a humidity content lower than the 20% and must be stored in a dry place. Humid wood tends to burn
less easily, since it is necessary a greater quantity of energy to let the existing water evaporate. Moreover, humid content involves
the disadvantage that, when temperature decreases, the water condensates earlier in the hearth and therefore in the stack causing
a remarkable deposit of soot with following possible risk of fire of the same.
Fresh wood contains about 60% of H
It is necessary to place this wood in a dry and ventilated place (for example under a roofing) for at least two years before using it.
Besides others, it is not possible to burn: carbon, cuttings, waste of bark and panels, humid wood or wood treated with
paints, plastic materials; in this case, the warranty on the device becomes void.
Paper and cardboard must be used only to light the fire.
The combustion of waste is FORBIDDEN and would even damage the appliance and the flue, causing health damages and claims
by the neighborhood owing to the bad smell.
The wood is not a fuel which allows a continuous operation of the appliance, as consequence the heating all over the night is not
possible.
Variety
Beech
Oak
Elm
Poplar
Larch*
spruce*
scots pine *
ATTENTION : the continuous and protracted use of aromatic wood (eucalyptus, myrtle etc.) quickly damages the
cast iron parts (cleavage) of the product.
The declared technical data have been achieved by burning beech wood class "A1" according to the requirement UNI EN ISO 17225-5 and wood
moisture content less than 20%. By burning a different kind of wood the efficiency of the product itself could change and some specific adjustments
on the appliance could be needed.
28
Picture 11).
O, therefore it is not suitable to be burnt.
2
kg/mc
750
900
640
470
660
450
550
*
RESINOUS WOOD NOT SUITABLE FOR THE BURNING
ENgLIsH
kWh/kg 20%
moistness
4,0
4,2
4,1
4,1
4,4
4,5
4,4