Air Circulation; Before Installation - Jotul C 620 Manuel D'installation

ENGLISH
Through an outside wall

4.3 Air circulation

If installing in a new fi replace surround, air must be able to
circulate between the cassette and the masonry.
Min. circulation air:
Base: 350 cm² free opening.
Top: 500 cm² free opening.
This is a safety measure to ensure that the build-up of heat
inside the fi replace surround does not become too great and
that the output of heat to the room is adequate.
The opening must be placed at the top of the surround.
4.4 Hot air distribution / fan
One or two ducts with an internal diameter of 150 mm can be
connected to distribute the heated air from the cassette. Hot
air ducts must be made of a heat-resistant, non-combustible
material, for example, fl exible aluminium ducts. These can
become very hot and it is important that they do not come into
contact with any combustible material. Two connectors for the
ducts are included with the product (ducts are not included).
The problem of paint changing colour just above the cassette is
reduced by the use of hot air ducts. See Chapter 7 for installation
instructions.
A fan (optional extra) can be fi tted inside the product to increase
hot air distribution. This can be fi tted regardless of whether
ducts for hot air distribution have been installed or not. See the
instruction manual for fan installation (included with the fan).
4.5 Chimney and fl ue pipe
• The fi replace must be fi tted with an uninsulated fl uepipe
with a minimum height of 500 mm.
• The cross-section of the chimney must be at least that of the
fl ue pipe. Use «2.0 Technical Data» to calculate the correct
chimney cross-section. NB! The minimum recommended
chimney length is 3.5 m.
• The fi replace can be connected to chimneys and fl ue pipes
approved for solid fuel fi replaces with fl ue gas temperatures
as specifi ed in «2.0 Technical Data».
• For recommended chimney draught, see «2.0 Technical
Data». If the draught is too strong, action must be taken,
e.g. install and operate a fl ue pipe damper in order to reduce
the draught. If a fl ue damper is fi tted it shall be of a type,
8
which does not block the fl ue totally. The damper shall be
easy to operate and incorporate an aperture within the blade,
which in a continuous area occupies at least 20 cm2 or 3
% of the cross-sectional area of the blade if this is greater.
The position of the damper shall be recognizable from the
setting of the device.
• The chimney and sweeping hatch must be inspected to
ensure they are tightly sealed to prevent leakage. If there is
a leak, less air will be pulled through the stove. Your local
fi re safety offi ce can carry out an inspection of the chimney.
• The chimney must be connected in accordance with the
installation instructions of the chimney supplier.
• Before a hole is made in the chimney, the fi replace should
be test-mounted in order to correctly mark the position of
the fi replace and the hole in the chimney. See Fig. 1 for
minimum dimensions.
• It is extremely important for connections to have a degree of
fl exibility. This is to prevent any movement in the installation
leading to the formation of cracks.
• It is important for the joints/flue pipes to be sealed
completely. Air leakage may cause malfunction.
• A fl ue gas bend that alters the direction of the fl ue gas by
more than 45° must be fi tted with a sweeping hatch. Note
that it is possible to sweep from the inside of the burn
chamber.
• NB: A correct and airtight connection is extremely important
for the function of the product.
• Weight must not be transferred from the fi replace structure
to the chimney. The fi replace structure must not hinder the
chimney's ability to move, and must not be anchored to
the chimney.

4.6 Before installation

Make sure that the Jøtul C620 fi ts inside the hearth or
Fig. 1 shows the minimum dimensions. You must allow space
between the cassette and the masonry for thermal expansion
of the cassette stove. The hearth must be cleaned thoroughly
before installation. It is important to remove old soot and tar
that has collected in the hearth to prevent an unpleasant smell
in the room. Use a suitable detergent.
The product is heavy! Ensure you have help when
positioning and installing it.
The standard product comes in three packages.
• When the product is unpacked, remove the bag of screws
and the box with the outside air connector, 2 hot air outlet
connectors and the oven glove from the burn chamber.
• Also remove the fi re grate and a wooden block (used for
transportation) just below the product's smoke outlet.
• Check the product for signs of damage and make sure that
the control handles work.
surround,