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- The fans can have sharp edges and corners,
which may cause injuries.
- Be careful when opening the fans service-
hatches (swing-out), the fan and motor
assembled on the hatch is relatively heavy.
- Electrical reset.
Transportation and Storage
All fans are packaged at the factory to withstand
normal transport handling. When handling the
goods use suitable lifting equipment in order to
avoid damage to fans and personnel. Do not lift
the fans by the connecting cable, connection
box, impeller or inlet cone. Avoid blows and
shock loads. Store the fans in a dry place
protected from weather and dirt until final
installation.
Installation
Refer to Safety information above. Installation,
electrical connection and commissioning are
only to be carried out by authorised personnel
and in accordance with requirements and
demands. Electrical connections are made
according to the wiring diagram in the terminal
box, markings on terminal blocks or on cable. All
3 phase fans are delivered from factory in 400V
3~ connection. Seal any empty cable glands with
dummy plugs. The K-fan must be installed with
the connection box at the top of the unit ± 90
degrees. If permanent installation is carried out
using cables with diameter 12-14 mm, the
entrance bush must be replaced (applies to type
K, KV, RVF and KVK 125/160). To preserve IP44
the RS fans must not be mounted with the
connection box/motor plate upwards (Fig.1).
When installing KBT in high level of moisture
(e.g. washing area), sufficient drainage to the
fan is crucial. This is to prevent freezing damage
to the fan in case of low temperatures.
Fans with thermal contacts with external leads
(TK) must always be connected to external
motor protection. Assemble the fan in the
direction of airflow (see arrow on unit). The fan
must be installed to ensure that any vibration is
not transmitted via the duct system or frame of
the building. (Suitable accessories such as fast
clamps and diffusers are available). Make sure
the assembly of the fan is firmly fixed and stable
(Fig 3). The fan can be mounted in any direction
unless stated otherwise. The fans must be
202341 | A021
installed to ensure that service and
maintenance can be performed easily and
safely. Installing silencers (available as an
accessory) can reduce disturbing noise.
When using frequency regulation an all pole
sinus filter must be mounted between motor
and frequency controller (version all poles:
phase-to-phase, phase to earth). Fans are meant
for continuous use within the temperature
range stated.
Fans with manual thermal contacts (reset by
disconnecting the power, motor protection
SP1), must be taken into consideration when
connecting surrounding equipment with
automatic on/off function. Recomended wiring
for KT fans (Fig 2).
Operation
Before initial operation, check the following:
- Electrical connection has been properly
completed.
- Protective conductor has been connected.
- Motor protection installed.
- Safety devices in place (protection grid)
- Leftover installation materials and foreign
materials have been removed from the
casing.
When putting into operation, check the
following:
- Connection data corresponds to the
specifications on the nameplate: Maximum
voltage +6%, -10%, according to IEC 38. Rated
current must not be exceeded with more
than 5% at rated voltage.
CAUTION! When speed regulating by reducing
the voltage the motor current may exceed the
rated current at a lower voltage. In this case, the
motor windings are protected by the thermal
contact. The minimum static fall of pressure
must be observed.
- That the motor protection is functional. The
direction of rotation should correspond to
direction-of-rotation arrow (3 phase).
- Smoothness of motor operation, (no
abnormal noises).
- Failure to connect the thermal motor
protection will result in all warranties being
null and void.
- TFE 220 is adapted to continuous operation.
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