SystemAir K EC Instructions D'utilisation Et D'entretien page 17

GB
Safety Information
This machinery must not be put into operation prior to
reading mounting instructions and safety information.
All fans are intended for transportation of air in air handling
systems. If installed in non-heated rooms, fan casing must
be insulated in order to avoid condensation. They are
designed to be used once built into machines or ducted to
be used into machines or duct systems or after contact
protection grid has been installed. (EN ISO 13857). Fans
with duct connections must be connected to ducts on both
sides (inlet/outlet). Should there be a risk of water entering
the motor, via the ducts, external protection is required. No
moving parts shall be accessible after installation. The fans
are not to be used in hazardous environments or connected
to flue ducts. The fans must not be installed outdoors
(except TFSR/TFSK EC, K EC ). Safety accessories (i.e.
safety grille) may not be dismounted, short cut or
disconnected. CAUTION Before servicing or maintenance,
switch off power, (all-pole circuit breaker), and make sure
the impeller has come a standstill. CAUTION the fans can
have sharp edges and corners which may cause injuries.
CAUTION be careful when opening the fans service-hatches
(swing-out), the fan and motor assembled on the hatch is
relatively heavy (applies to KVKE, KVO).
The fan motor has built in protection for locked rotor, which
implies that the motor tries to restart with a preprogrammed
interval whenever it senses that the rotor is standing still.
When the blockage is removed the fan will start up by itself
without any further measures. At high motor temperatures
the current will be cut from the motor. It can then only be
restarted by manually disconnecting the mains supply to the
fan for couple of minutes.
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. Permissible storage
temperatures -40...+80°C
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 connection according to the wiring
diagram in the terminal box, markings on terminal blocks or
on cable. CAUTION do not use metal compression gland
fittings with plastic terminal boxes. Use a dummy plug seal
for the compression gland fitting as well. The K-EC 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 electrical gland must be
replaced (applies to type K-EC). Assemble the fan in the
direction of airflow (see arrow on unit). The fan must be
installed so that vibration is not transmitted via ducted
systems or building structure. (Suitable accessories such as
fast clamps and diffusers are available). Make sure the
assembly of the fan is firm and stable. The fan can be
mounted in any direction unless stated otherwise. The fans
must be assembled so that service and maintenance can be
performed easily and safely. Disturbing noise can be
avoided by installing silencers (available accessory).
___________________________________________________________________________________________________
K-EC, KVKE-EC, TFSR-EC, TFSK-EC, KD-EC, KVO-EC
206268 (15-05-2012)
The fans are meant for continuous use within the
temperature range stated.
For fans which reset by cutting the current, must be taken
into consideration when connecting surrounding equipment
with automatic on/off function.
EC motors have a leakage current to earth corresponding to
<=3,5 mA. This needs to be considered whenever the fan is
connected together with an earth fault breaker.
Integral potentiometer
The integral potentiometer is factory preset (Fig. 1-9). This
value can be changed manually to obtain a different motor
rpm/fan performance. Fan preformance charts for this
purpose are shown in the table by voltage steps on page 5-
13 (Fig. 1-9) to the right of the pot. symbols. An external
potentiometer can be connected if necessary. If so the
internal potentiometer needs to be disconnected from the
connection terminals.
Tach output
Terminal No. 1 in the wiring diagrams (white signal cable)
enables connection of an rpm counter (one pulse per
revolution), controller, alarm or a speed display. The Tacho
a signal with max 10mA.
Operation
Before initial operation, check the following:
- Electrical connection has been properly completed.
- Protective conductor has been connected.
- 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.
- Smoothness of motor operation, (no abnormal noises).
-Fans must only be operated by a person which has suitable
knowledge or education within this field or carried out with
the supervision of a suitably qualified person.
Maintenance, Service and Repair
Prior to maintenance, service or repair make sure that:
- Power supply is interrupted (all-pole circuit breaker).
- Fan impeller has come to a complete standstill
- Observe personnel safety regulations!
The fan should be cleaned when necessary, at least 1/year
to avoid imbalance and unnecessary damage to the
bearings. A filter will further improve the time interval
between cleaning of the fan. (It is sometimes recommended
to install a filter guard). The fan bearings are maintenance
free and should only be replaced if damaged. Do not use a
high-pressure cleaner (steam jet) when cleaning the fan.
Make sure the fan impeller's balance weights are not moved
or the fan impeller distorted. Listen for abnormal operating
noise.
The following applies in case the fan has stopped:
- Try to restart the fan by cutting the power a couple of
minutes.
- Ensure that the impeller is not locked. Possible obstruction
to be removed after the current has been switched off.
Check that the fan starts after reconnecting the current.
Should the fan not start please contact your place of
purchase.
Operation and maintenance instructions (Original)
17
Systemair AB