Nilfisk Alto C-90A Manual Do Utilizador

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5
920-010-05 (11-04)
CLEANING THE PRE-FILTER
Remove the pre-fi lter and shake out or brush off the accumulated dust and lint. If this is 
not adequate, a vacuum may be used or the pre-fi lter can be cleaned with an all-purpose 
cleaning agent to remove tobacco smoke and cooking grease stains. A thorough rinsing is 
required after each cleaning. After cleaning, allow to dry and reinsert.
CLEANING THE CARBON FILTER
Occasionally, the carbon fi lter will need cleaning. Use a stream of air or a vacuum to 
remove the dirt. THE CHEMICAL AND ODOR ABSORPTION CAPABILITIES CAN NOT 
BE RESTORED. When the carbon fi lter can no longer remove odors from the air, it must 
be replaced. (See Carbon Filter Reorder Form packed with this unit or contact your nearest 
Friedrich dealer.) Under normal operating conditions the carbon fi lter should be replaced 
every 3-6 months. THE CARBON FILTER MUST BE IN PLACE FOR THE AIR CLEANER 
TO OPERATE.
CLEANING THE ELECTRONIC CELL
The simplest method of cleaning the electronic cell is to use an automatic dishwasher. The 
dishwasher provides the correct cycle of wash, rinse and dry. Water temperatures normally 
found in dishwashers will not harm the cell.
1.  After turning off the air cleaner, remove the cell and gently place on the dishwasher rack 
with airfl ow arrows pointing up. In some dishwashers, it may be necessary to remove 
the top rack. BE EXTREMELY CAREFUL WHEN PLACING ON DISHWASHER 
RACK TO NOT DAMAGE IONIZER WIRES OR BEND COLLECTOR PLATES.
2.  Use any available household dishwasher detergent recommended for use in your 
appliance and follow manufacturer’s instructions.
3.  Not all dishwashers may be capable of holding the electronic cell. Be sure to compare 
the internal size of the dishwasher to the dimensions of the electronic cell (16" high x 
12 1/2" wide x 4 1/2" deep.) All parts of the dishwasher must be able to move freely.
4.  Take care to avoid damaging the cell when removing it from the dishwasher. GENTLY 
LIFT THE CELL STRAIGHT UP TO PREVENT DAMAGE TO IONIZER WIRES AND 
COLLECTOR PLATES.
5.  The cell may be hot when removing it from the dishwasher. Allow to cool or wear 
protective gloves. Make sure that all water is drained off when removing the cell from 
the dishwasher.
6.  If dirt stains or detergent residue remain after washing, it may be necessary to rewash 
the cell or switch detergent.
7.  The electronic cell must be COMPLETELY dry before replacing it in the air cleaner 
for use.
Cleaning
(Continued)