8 VEDEX 3300
For the Installer
Assembly
VEDEX 3300 has inlets for primary air at the front and
secondary air on the sides of the boiler. Therefore, always
leave a space of at least a metre from combustible mate-
rial. In unfavourable cases “puffs” from combustion can
discharge sparks.
Turbulators
Six turbulators are supplied with the boiler. These are
located in the ducts in the boiler’s convection part as il-
lustrated. The turbulators affect the turbulence of the flue
gases, which means that a greater amount of energy is
transferred to the boiler water. The temperature in certain
chimneys may become so low that there may be a risk
of condensation build-up in the smoke duct. To increase
the temperature in the chimney the turbulators can be
removed, one at a time as illustrated. For each turbulator
that is removed, the flue gas temperature rises from the
boiler by 15 – 25 °C.
Remove the turbulators in number order until the flue gas
temperature in the chimney is correct.
LEK
General information for the installer
66
Boiler room
The boiler room must be built in accordance with applica-
ble building regulations.
Provision for good air supply. The boiler room’s air intake
must be as large as the flue.
Chimney
VEDEX 3300 has a vertical flue pipe connection with an
external diameter of 133 mm. Angled flue pipe supplied as
standard.
Different chimney heights are required depending on ver-
sion. In addition, a number of other factors, for example,
wind and terrain conditions, nearby buildings etc, can
affect the draught conditions of the chimney. Minimum
chimney draught for satisfactory wood firing is 15 Pa.
The following table showing several different versions of
chimney is a recommendation, however, the aforemen-
tioned factors must also be taken into consideration.
Material Area Minimum
height
Steel pipe Ø 125 mm 5.0 m
Brick 140 x 140 mm 5.0 m
Many older boilers have the flue duct located at the bot-
tom and have been connected to the chimney near to the
floor. If the new boiler is to be connected higher up on the
chimney the lower, non-active, part of the chimney pipe
should be filled with sand or similar.
Ensure that sweeping can be carried out in
accordance with the applicable regulations.
If in doubt, contact a chimney sweep.
NOTE!
The flue gas temperature must not drop
below 65 °C 0.5 m below chimney opening.
NOTE!
General information for the installer
EX
Minimum 5 m
vid vedeldning
Fyllning
Undertryck i skorstens-
anslutningen minimum
1,5 mmVP (15Pa).
Minimum 5 m
during wood firing
Chimney connection
vacuum minimum 1.5
mmVP (15Pa).
Filling
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