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TECHNICAL MAINTENANCE
The unit operation requires regular inspection, dry cleaning of inner components, check-up and replacement of air filters in case of filter
clogging.
3-6 months after commissioning of the unit it must be inspected by a service expert for planned preventive maintenance of the unit.
Subsequent maintenance should be carried out at least once every 6-12 months. The frequency of maintenance is determined by the
service technician, depending on the operating conditions of the unit. Dust deposits on the inner parts of the unit, especially in the
electric heater, may lead to unpleasant odours. This is not a malfunction. Clean the unit to eliminate odours.
Access to filters through side service panels
Remove the service panels.
Unscrew the two thumbscrews securing the retaining
plate.
Remove the filter elements.
Access to filters through lower service panels
Remove the service panels. Remove the filter elements.
OPEN THE UNIT FOR INSPECTION AND SERVICE AT LEAST TWO MINUTES AFTER
COMPLETE DE-ENERGIZATION OF THE UNIT.
FANS MAY CONTINUE ROTATING.
IIN CASE OF ANY ABNORMAL NOISE, SMELL AND COMPONENT DEFORMATION,
IMMEDIATELY CUT OFF POWER SUPPLY TO THE UNIT AND CONTACT A SERVICE
PROVIDER OR THE UNIT SELLER.
