installed. Make sure the air volume needed for combustion
is not blocked by objects placed under or around the oven,
especially near holes or slots.
A correct air change grants a proper combustion of the oven
burner and a healthy room for the users.
On the basis of to the scavenging system used, the gas oven
models are classifiable as follows:
Type A1 (ovens with thermic power < 14kW)
: exhaust
gasses are scavenged in the room where the oven is installed.
Type B11 (ovens with thermic power < 14kW)
: Exhaust
fumes are scavenged to the outside through a natural draught
chimney. In this type of installation, make sure that, for all its
length, the section of the chimney is larger than the section of
the oven exhaust pipe. Above the draught breaker there must
be a vertical length longer at least three times the diameter of
the pipe. The exhaust system must have for all its length an as-
cending path with a minimum slope of 10%. Moreover, there
mustn’t be any angle smaller than 90”. Avoid the horizontal
part of the connection exceed the approximate length of 1,5
meters. In case the connection is not possible, install a hood at
least at 50 cm from the oven draught breaker.
Attention! Placing a hood too near the draught breaker may
cause an over depression on the draught breaker that would,
then, attract a greater gas quantity inside the burner with con-
sequent blasts and leave harmful unburnt gasses.
It is recommended to install a chimney cover on the external
top part of the flue in order to avoid the rain to get inside the
oven and to limit the Venturi effect depressions that may occur
in case the chimney is exposed to strong external draughts.
Type B21 (ovens with thermic power > 14kW)
: Exhaust
fumes are scavenged to the outside through the hood. The
hood must be at, at least, 50 centimetres from the draught
breaker: if the hood is placed to close to the draught breaker
it may cause an over depression on the draught breaker that
would, then, attract a greater gas quantity inside the burner
with consequent blasts and leave harmful unburnt gasses.
It is recommended to install a chimney cover on the external
top part of the flue in order to avoid the rain to get inside the
oven and to limit the Venturi effect depressions that may occur
in case the chimney is exposed to strong external draughts.
The choice about the type of gasses scavenging must be made
accordingly to local laws on gas appliances installation.
All
UNOX
gas ovens are supplied with an anti-wind chimney,
incorporated to the gasses scavenging system, to avoid ob-
structions and not proper draught: it has never to be removed
because it is integral part of the oven.
3. ELECTRICAL CONNECTION
3.1 WARNING
The connection to the electrical power supply system
must be carried out according to the current local regula-
tions.
Before connecting the appliance, make sure that the volt-
age and the frequency correspond to those stated on the
data plate of the appliance.
The appliance must be placed in such a way that the con-
necting plug to the network can be easily reached.
Place an omni-polar switch between the appliance and
the network in such a way that it will be easily accessi-
ble after the installation. The contacts of this switch must
have a minimum opening distance of 3 mm and the switch
must have an appropriate input (for example: thermal-
magnetic switch).
21
ENGLISH
ChefTop™ - BakerTop™
