• Before service, maintenance or repair, disconnect
power and wait until the impeller has stopped.
• Consider the weight of the fan when removing or
opening larger fans to avoid injury and damage.
• Attention, look out for sharp edges.
•
Attention!
Temperatures up to 85°C can be pre-
sent on the controller housing (only for EC motor).
•
Waiting period of at least 3 minutes!
(only for
EC motor) Because of internal capacitors, danger of
death exists even after switching off the device
through directly touching the energized parts or due
to parts that have become energized due to faults.
The controller housing may only be removed or
opened when the power line has been switched off
and a period of three minutes has elapsed since swit-
ching it off.
• The fan must be cleaned regularly, at least once
per year to maintain the capacity and to avoid unba-
lance which may cause unnecessary damage of the
bearings.
• The fan bearings are maintenance-free and should
be replaced only when necessary.
• When cleaning the fan, pressure wash or strong dis-
solvent must not be used. Cleaning should be done
without displacing or damaging the impeller
.
• Make sure that there is no noise from the fan.
11
The fan is easy to open for
cleaning and service with the
swing-out design.
Loosen the screws a few
turns, without removing
them.
Turn the motor bracket to the
right so the screws can go
through the key holes. Open
the motor bracket.
When closing, turn the motor
bracket to the left so the
screws go into the smaller
part of the keyholes.
Tighten the screws.
OPEN
OPEN
CLOSE
CLOSE
M A I N T E N A N C E
F A U L T D E T E C T I O N
1. Make sure that the power is connected to the fan.
2. Disconnect the power and verify that the impeller
is not blocked.
3. Check the thermal contact (for AC). If it is trig-
gered the cause of overheating must be investigated
and taken care of.
To restore the manual thermo-
protector the power must be disconnected for a
couple of minutes. Larger motors
than 1,6 A may
have manual reset of the motor. In case of automatic
thermo-protector the resetting will be done auto-
matically when the motor has cooled down.
4. Make sure that the capacitor is connected according
to the wiring diagram (for AC).
5. If the fan still does not work, the first thing to do is
to replace the capacitor (for AC).
6. If the previous steps doesn’t solve the problem,
contact your fan supplier.
7. If the fan is returned to the supplier, it must be
cleaned, the motor cable must be undamaged and a
detailed fault description must be enclosed.
W A R R A N T Y
The warranty is only valid under condition that the
fan is used according to this “Directions for use” and
a regular maintenance has been made and record. The
warrantor is responsible only for the operation if app-
roved accessories are used. The warranty does not cover
product failures caused by accessories/equipment from
other manufacturers.
E N G L I S H
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