32
Safety warnings
For the installer
When used s n extr ctor unit, the hood must
be fitted with 150mm di meter hose.
Should there lre dy be pipe with di meter
of 125mm th t ducts to the outside through the
w ll or roof, it is possible to use the 150/125 mm
reduction fl nge provided. In this c se the hood
will be slightly noisier.
When installing the hood, make sure you
respect the following minimum distance
from the top edge of the cooking hob/ring
surfaces:
electric cookers 500 mm
gas cookers 700 mm
The hood c n be inst lled bove these heights
but for optimum perform nce it should be
inst lled t the dist nce quoted for the
ppropri te he t source.
The n tion l St nd rd on fuel-burning systems
specifies m ximum depression of 0.04 mb r in
such rooms.
The ir outlet must not be connected to chimney
flues or combustion g s ducts. The ir outlet
must under no circumst nces be connected to
ventil tion ducts for rooms in which fuel-burning
ppli nces re inst lled.
The ir outlet inst ll tion must comply with the
regul tions l id down by the relev nt uthorities.
When the unit is used in its extr ctor version,
sufficiently l rge ventil tion hole must be
provided, with dimensions th t re pproxi-
m tely the s me s the outlet hole.
N tion l nd region l building regul tions
impose number of restrictions on using hoods
nd fuel-burning ppli nces connected to
chimney, such s co l or oil room-he ters nd
g s fires, in the s me room.
Hoods c n only be used s fely with ppli nces
connected to chimney if the room nd/or fl t
( ir/environment combin tion) is ventil ted from
outside using suit ble ventil tion hole pproxi-
m tely 500-600 cm2 l rge to void the
possibility of depression being cre ted during
oper tion of the hood.
If you h ve ny doubts, cont ct the relev nt
controlling uthority or building inspectors
office.
Since the rule for rooms with fuel burning
ppli nces is outlet hole of the s me size s the
ventil tion hole, hole of 500-600 cm2, which
is to s y l rger hole, could reduce the perfor-
m nce of the extr ctor hood.
If the hood is used in its filtering function, it will
oper te simply nd s fely in the bove
conditions without the need for ny of the
forementioned me sures.
When the hood is used in its extr ctor function,
the following rules must be followed to obt in
optim l oper tion:
short nd str ight outlet hose
keep bends in outlet hose to minimum
never inst ll the hoses with n cute ngle,
they must lw ys follow gentle curve.
keep the hose s l rge s possible
(prefer bly the s me di meter s the
outlet hole).
F ilure to observe these b sic instructions will
dr stic lly reduce the perform nce nd incre se
the noise levels of the extr ctor hood.