4.7 Fan installation/removal
Dismantling tracks with individual designs can be deliv-
ered as accessories for the installation and removal of the
motor or fan, respectively.
For this, the motor will be transported by means of a
trolley. The drive motor can be placed on a lift wagon, for
example, in front of the unit.
4.8 Motor protection
Motors are to be protected from overload in accordance
to national regulations.
A motor protection switch is prescribed and should be
adjusted to the rated motor current value (see type data
plate). A higher value is not permitted!
Motors with a built in PTC thermostat detector are to be
protected via a PTC thermostat actuation device.
Generally, motors with a rated current up to 3 kW can
be switched on directly (observe performance limitations
from the responsible energy supplier). For larger motors, a
star-delta-start or soft-start is prescribed.
On-site safety precautions are to be taken to prevent over-
load, short circuit, over or under current and excessively
high ambient temperatures.
Special care must be taken when connecting motors,
especially on equipment, for which the motors are outfit-
ted with two turning speed levels. Connections must be
made in accordance with the specifications on the type
data plate and the connection plan on the inside of the
motor terminal box.
Protection fuses and automatic circuit breakers are not
sufficient for motor protection. The manufacturer’s war-
ranty no longer applies to damage caused by insufficient
motor protection.
4.9 Electrical connection
All electrical work must be performed exclusively by
authorized personnel with unit power disconnected and
protected against be switched back on.
All electrical connections are to be made in accordance
with valid international, national and local regulations and
guidelines, as well as manufacturer’s instructions.
In order to prevent damage, the connection diagram in
the terminal box must be respected.
Watertight sealing must be ensured when making electri-
cal connections. Connections from below or watertight
threaded connections (minimum protection type IP65)
should have a sufficient cable radius.
All electrical terminal connections (switching cabinet,
frequency converter, motor, etc.) should be checked for
secure seating and re-tightened if necessary.
All electrical cables, which run throughout the housing,
must be affixed and prevented from being damaged.
EN.SILVER.110322
The company reserves the right to make design changes without prior notice.
www.swegon.com 9
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