• The fan must be installed according to the air direc-
tion label on the fan.
• The fan must be connected to duct or equipped with
a safety grille.
• The fan should be installed in a safe way and make
sure that no foreign objects are left behind.
• The fan should be installed in a way that makes ser-
vice and maintenance easy. N.B.! Consider the
weight and size of the fan.
• The fan should be installed in a way that vibrations
not can be transferred to duct or building. To provi-
de this, use for example a flange.
• Electrical installations must be made by an authori-
zed
electrician.
• See Wiring diagram at the lid of the junction box.
• Electrical installation must be connected to a local-
ly situated isolator switch or by a lockable main
switch.
• Control that the fan is installed and connected elec-
trically in the right way, grounded and with motor
protection.
• For single phase fans a residual current device is used
(type
A).
AC-MOTOR
• For speed regulation of AC motor a transformer or
thyristor can be connected.
• The AC motor has a built-in thermal contact.
• The capacitor (only for AC motor) has finite life-
time and should be exchanged after 45.000 opera-
tion hours (about 5 years of operation) to secure
maximum function. Defective capacitor can cause
damage.
EC-MOTOR
• Speed regulating of EC
motor can be done with
the built-in potentio-
meter, 0-10 V.
An external potentio-
meter can be connected
to the terminal if neces-
sary. The internal poten-
tiometer should then be
disconnected.
• The EC motor has
tachometer output one
pulse per revolution.
•
EMC-COMPATIBLE INSTALLATION OF EXTERNAL
CONTROL
LINES:
The control cable may not be
longer than 30 m. Screened control cables must be
used when the cable length is longer than 20 m.
When using a shielded cable connect the shielding
to one side only, i.e. only to the device with the pro-
tective ground (keep cable short and with as little
inductance as possible!). Pay attention to sufficient
distance from power lines and motor wires to pre-
vent
interferences.
Attention!
Ensure correct polarity! Never apply
line voltage to analog inputs!
• The EC motor has electronically thermal-/over-
voltage
protection.
9
I N S T A L L A T I O N
H O W T O H A N D L E
O P E R A T I O N
For technical data please see the product label.
Before starting, make sure that:
• the current does not exceed more than +5% of what
is stated on the label.
• the supplied voltage is 6% to –10% of the
rated
voltage.
• no noise appears when starting the fan.
• The fan must be transported in its packing until in-
stallation. This prevents transport damages, scrat-
ches and the fan from getting dirty.
• Avoid extreme heat or cold (temperature range for
storage and transport.
• Avoid prolonged storage; we recommend a maxi-
mum of one year (consult the manufacturer before
starting if stored for longer).
E N G L I S H
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