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 conden-
sation from flowing back into the motor.
• the minimum required number of bends.
• the minimum required length to avoid vibrations and reduce the suction per-
formance of the hood.
You are required to insulate the pipes if it passes through cold environments.
In the presence of motors with 500 CFM or higher, a check valve is present to
prevent external air flowing back.
HOOD WITH INTERNAL RECIRCULATION (FILTERING) (OPTIONAL)
In this model, air passes through the carbon and zeolite filters
(optional) to be purified and is then recycled into the environ-
ment. Ensure that the carbon filters are assembled into the
hood, if not, install them as indicated in the assembly instruc-
tions.
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 personnel qualified
WARNING: Make sure the suspended element has available front access.
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 required installation.
SRS SYSTEM SETTING
The SRS system reduces the maximum air flow rate that can be set
in the hood.
This makes the hood compliant with local building regulations.
MAX SPEED LEVEL 3
1
Apply the label
Code
Serial n.
Fig. 1: Set maximum speed 3:
Press keys
+
All keys flash.
Within 5 seconds, press and hold the
If all the keys light up and are steady, the setting procedure
has been successful.
MAX SPEED LEVEL 2
2
Apply the label
Code
Serial n.
Fig. 2: Set maximum speed 2:
Press keys
+
for 5 seconds. All keys flash.
Within 5 seconds, press and hold the
If all the keys light up and are steady, the setting procedure
has been successful.
13
Max Speed
3
Selection
for 5 seconds
key for 5 seconds
Max Speed
2
Selection
key for 5 seconds