23
Consuption
Control that the consumption (A) once installed in the fan does not exceed the conditions specified in the fan’s
plate. The capacity of the fan and the installation charge should be correctly adjusted (see “Start up”). In case
of non compliance please consult the manufacturer.
Ground system
According to the current legislations the fan is a Class I and it is mandatory that the ground system is connected,
it can be found inside the connection box of the motor or the fan.
The earth connection must be made using the
special terminals inside the appliance and in
complete accordance with current legal
requirements.
Once connected, it is advised to check the electric insulation with device (tester).
Environment conditions
The following environment conditions need to be respected:
- Temperature = 40°C Max;
- Relative humidity = 60% Max.
In case of doubts, checking the rating label of the product is always advised: it contains all the technical
informations to be respected.
Note: Motorfans insulation class is F.
for other applications, who needs particular features, checking technical data is always advised. In case of
doubts of more informations: contact the supplier directly.
Direction of the rotation
The direction of the rotation is shown into the housing (see: “Electrical connections”).
Noise level
Depending on the model of the fan, its power, size and revolutions the noise level can be different.
You can find the noise level information, for every models, on technical catalogues or website.
Connecting to Air system ducts
Connecting to the ducts is possible thanks:
- Air inlet:
connecting the duct to the
circular flange
(on the inlet side);
- Air outlet:
using optional joints (not
supplied)
In any cases of connection, It is always advised to use elastic joints.
It is not recommended that you use ducting with
bends in the immediate vicinity of the appliance, as
the flow of air generated requires a straight section at
least 3 or 4 times the equivalent diameter of the duct
to reduce the vertical air flow to normal.
Motorfan balancing
The appliance is statically and dynamically balanced
to level 6.3 according to ISO 1940 standards, however the use of vibration dampers on the base is
recommended.
Protection against unvolountary accident
Preventing accidents with rotating bodies is necessary. In the following cases, you must install protection grids:
- Air inlet:
without any inlet duct
connected;
- Air outlet:
without any outlet duct
connected.
Note: in any cases of connection (inlet side or outlet side), preventing accidents is always necessary (checking
the minimal lenght of the duct).
Start up
Once completing the installation, checking the missing friction on rotating bodies is always advised. Also double
check no external element or left over material from the installation is inside the fan or its ducts. Check also that
the air inlet and outlets are clear. Note: in case of adjustable air grids, need to verify the correct opening and
functioning (in order to avoid over consuptions).
ENGLISH
Summary of Contents for 45731
Page 45: ...45 ...
