Fume Exhaust Connection - Lofra DOLCEVITA Instalación

Fume exhaust
connection
DUCTING/SUCTION VERSION
This type of hood is equipped with a top air outlet for dis-
charge of fumes outside the house, which has to be con-
nected with the inlet of the building chimney, commonly
through a hose (not provided).
For hoods with motor with flow rate 800 m
the tube going from the motor to the flue must have a
minimum diameter of 150 mm.
For hoods with motor with flow rate lower than 800 m
the tube going from the motor to the flue must have a
minimum diameter of 120 mm.
Horizontal tube sections must be slightly tilted upwards,
to help channelling of the air to the outside. Fume dis-
charge tubes crossing particularly cold environments
(e.g. attics) should be insulated, to prevent condensation
caused by temperature differences.
Suction type hoods DO NOT require carbon filters, which,
on the contrary, can limit their performance.
Any changes to the tube, sudden diameter reductions, and
bends, may prevent the hood from reaching optimum suc-
tion capabilities, and may jeopardise the operation of the
motor, relieving the Manufacturer from all responsibility.
Make sure that the flue is in perfect working order, and
that a square (concrete) or round (metal) static wind break
ventilation tower with useful output section not less than
double the diameter of the flue (UNI 7129) is installed at
the top of the flue itself.
Comply with all air discharge regulations.
The drain chimney of the building should be
dedicated to the hood only, so under no circum-
stances it should be shared with other devices,
such as bathroom extractors, air-conditioning units,
fireplaces, wood or gas stoves.
FILTERING/AIR RECYCLE VERSION
In order to prevent both the flow of unclean air
in the room and any damage to the fan blow-
er, once saturated, the carbon filters should be
promptly replaced.
Once the carbon filters are saturated, they should be re-
placed as soon as possible, to prevent both the flow of
unclean air and damages to the blower fan.
metal
/h or more,
3
filters
/h,
3
fumes and
steam
metal
filters
fumes and
steam
25
external
evacuation
hood
internal air
recirculation
hood
active
carbon
filter