SystemAir K EC Serie Instrucciones De Uso Y Mantenimiento página 11

GB
Safety Information
This machinery must not be put into operation until 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, the fan casing has
to be insulated in order to avoid condensation. They are
meant to be used after building them 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). When there
is 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 roof fans TFSR/TFSK). 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).
The fan motor has a 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
witout any further measures. At high motor temperatures the
current will be cut to the motor. It can then only be restarted
by manually breaking the mains supply to the fan a 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 entrance bushing 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 vibrations are not transmitted to duct
systems or frame of building. (Suitable accessories like fast
clamps and diffusers are available). Make sure the assembly
of the fan is firmly fixed 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 silencer (available accessory).
The fans are meant for continuous use within the
temperature range stated.
___________________________________________________________________________________________________
K-EC, KVKE-EC, TFSR-EC, TFSK-EC
206268 (10-03-2011)
For fans that are reset by cutting the current, it 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 preset from factory (Fig. 1-5).
This value can be changed manually to obtain a different
motor rpm/fan performance. Fan preformance charts for this
purpose with included voltage steps are shown in the table
on page 3-9 (Fig. 1-5) to the right of the pot. symbols. An
external potentiometer can be connected as 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
sinks 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 that has
sustainable knowledge or education within this field or
handling must be carried out with the supervision of such
person.
Maintenance, Service and Repair
Before 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 prolong the time interval between each
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.
- Make sure that the impeller isn't blocked. Possible
obstruction is removed after the current has been cut.
Check that the fan starts after reconnecting the current. If
the fan still doesn't start contact your place of purchase.
Operation and maintenance instructions (Original)
11
Systemair AB