Nordica ETNA 2500, Руководство пользователя

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2.6 HOT AIR DUCTWORK INSTALLATION
Nordica’s Everest and Etna 2500 fireplaces offer three choices of hot air intake:

Gravity vent system

Central forced air kit system

Air system linking to the central system
Use only Nordic Steel Products Int. components as described in this manual.
If a thermostat is used, install it in an area of the house which will be heated by the hot air
ventilation shaft. Do not install the thermostat in the same area as the fireplace unless you use a
cooling thermostat. This one can start the ventilator when the temperature in the room where the
fireplace is installed is too high.
Attention: The last two options use electrical supply. Make sure that all the connections are done
in order and respect all the municipal regulations and the national building code of Canada. Install
the rheostat near the fireplace in order to close it as soon as you have to open the doors of the
fireplace. If the ventilation is working, the smoke will come out through the doors instead of going
through the chimney.
2.6.1 Gravity kit
When you install a hot air system by gravity, we do not recommend ventilators because hot air
evacuates naturally without ventilator (See page 13).
2.6.2 Central forced air kit
The fireplace is provided with openings on the sides and the back. This allows the connection of
flexible insulated ducts in order to heat adjacent areas up to 30 feet from the fireplace.
When you install the ventilation shafts system by hot air intake, it can be installed, in the same area
where the fireplace is, or separately in adjacent areas or on the upper or lower floor. Installing ducts
on different levels can produce a higher heat through the ducts.
The ventilation shafts by hot air intake must be installed as follows:

Do not connect the hot air ducts by gravity to a central heating system.
a)
Other grids or registers can be too restrictive and overheat the fireplace or ceiling.
b) Fix the adaptor on the side of the fireplace. One can use one or more exits at the same time,
on the same fireplace (See pages 14 and 15).
c) Connect the 6 inches flexible duct with the tightening collars provided for this purpose.
d) Bring the flexible duct in selected area. It can be as well on a upper or lower floor (See page
13).
e) Connect the duct to the ventilator by using the tightening collars.
f) Connect the decorative grid from the adaptor to the ventilator (See pages 14 and 15).
g) The hot air grid must be installed with the shutters pointing downward in order to avoid
overheating the adjacent ceiling (See page 13).