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I N S T A L L A T I O N
• 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 i 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 must not be longer than 30
m. Screened control cables must be used when the
cable length is longer than 20 m. When using a shi-
elded cable connect the shielding to one side only,
i.e. only to the device with the protective ground
(keep cable short and with as little inductance as
possible!). Pay attention to sufficient distance from
power lines and motor wires to prevent interferen-
ces.
Attention!
Ensure correct polarity! Never apply
line voltage to analog inputs!
• The EC motor has electronically thermal-/over-
voltage
protection.
E N G L I S H
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.
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