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Regular routine maintenance is required. The unit must be cleaned of dust once in year by means of air blushing. Disconnect the unit
from power mains prior to the unit cleaning.
MAINTENANCE
STORAGE AND TRANSPORTATION RULES
Store the unit in the manufacturer’s original packing box in a dry ventilated premise at the temperatures from +5 °C up to +40 °C at
the tempe20 °C.
Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation and sealing
deformation.
Use hoist machinery for handling and storage operations to prevent the unit damage. Fulfil the handling requirements applicable
for the applicable freight type.
Transportation with any vehicle type is allowed provided that the unit is protected against mechanical and weather damage.
Avoid any mechanical shocks and strokes during handling operations.
Fault
Possible reasons
Fault handling
The fan does not start up
during the unit start-up.
No power supply.
Make sure that the unit is properly connected to power
mains and make any corrections, if necessary.
Motor is jammed, the impeller are
clogged.
ВTurn the unit off. Troubleshoot the motor jam and the
impeller clogging. Clean the blades. Restart the unit.
Automatic switch tripping
following the unit turning
on.
Overcurrent resulted from short circuit
in the electric circuit.
Turn the unit off. Contact the service centre.
Low air flow.
Low set fan speed.
Set higher speed.
Control system malfunction.
Turn the unit off. Contact the service centre.
Heater malfunction.
Control system malfunction.
Turn the unit off. Contact the service centre.
High noise, vibration.
The impeller is soiled.
Clean the impeller.
The fan or casing screw connection is
too loose.
Tighten the fan or casing screw connection against
stop.
Possible faults and troubleshooting
TROUBLESHOOTING
