FALMEC Down draft 90 Mode D'emploi page 23

FUMES DISCHARGE
EXTERNAL EXHAUST HOOD (SUCTION)
In this version the fumes and vapours are discharged
outside through the exhaust pipe.
To this end, the hood outlet fitting must be connected
via a pipe, to an external output.
The outlet pipe must have:
• a diameter not less than that of the hood fitting.
• a slight slope downwards (drop) in the horizontal sections to prevent
condensation from flowing back into the motor.
• the minimum required number of bends.
• the minimum required length to avoid vibrations and reduce the
suction performance of the hood.
You are required to insulate the pipes if it passes through cold envi-
ronments.
In the presence of motors with 800m3/h or higher, a check valve is
present to prevent external air flowing back.
Deviation for Germany:
when the kitchen hood is used at the same time as appliances that are pow-
ered by energy other than electricity, the negative pressure in the room must
not exceed 4 Pa (4 x 10-5 bar).
HOOD WITH INTERNAL RECIRCULATION (FILTERING)
In this model, the air passes through the charcoal filters
to be purified and recycled in the environment.
Ensure that the active carbon filters are assembled into
the hood, if not, install them as indicated in the assem-
bly instructions.
In this version the check valve must not be assembled: remove
it if it is on the air outlet fitting of the motor.
ASSEMBLY INSTRUCTIONS
only intended for qualified personnel
The hood can be installed in various configurations.
The generic assembly steps apply to all installations; for
each case, follow the specific steps provided for the re-
quired installation.
OPERATION
WHEN TO TURN ON THE HOOD?
Switch on the hood at least one minute before starting to cook to direct
fumes and vapours towards the suction surface.
After cooking, leave the hood operating until complete extraction of all
vapours and odours. By means of the Timer function, it is possible to set
auto switch-off function which will allow the hood to turn off automat-
ically after 15 minutes of operation.
WHICH SPEED IS TO BE SELECTED?
1st speed: maintains the circulation of clean air with low electricity
consumption.
2nd speed: normal conditions of use.
3rd speed: presence of strong odours and vapours.
4th speed: rapid disposal of odours and vapours.
WHEN SHOULD THE FILTERS BE WASHED OR REPLACED?
The metal filters must be cleaned every 30 hours of operation.
The active carbon filters must be replaced every 3-4 months, depend-
ing on the use of the hood.
For further details see the "MAINTENANCE" chap.
TOUCH PUSHBUTTON PANEL
ON/OFF (Blue led steady on)
Motor on/off and Speed 1
ON/OFF (blue led flashing)
If pressed for more than 3 seconds, it activates the 24h cycle
(1h ON -> 3h
OFF -> 1h ON)
the function deactivates if:
- The motor turns off (key
- After 24h
Speed 2 activation
Speed 3 activation
Speed 4 activation for a few minutes only
Light on/off
TIMER (Red LED flashing)
Auto switch-off after 15 min.
The function deactivates (red LED off ) if:
- The motor turns off (key
- The speed is changed.
With hood open:
FILTER ALARM (red LED steady on)
Anti-grease filter maintenance after approximately 30 hours
of operation.
Press the meter for 3 seconds to reset.
With hood closed:
If pressed for over 3 seconds, the hood opens for maintenan-
ce.
No control active.
To close the hood, press (
If the pushbutton panel is completely inactive, before con-
tacting the Technical assistance service, disconnect power
temporarily to the appliance (about 5"), possibly by acting on
the main switch, to restore normal operation.
If this measure has no effect, contact the Technical assistance service.
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)
).
) again for 3 seconds.