Friedrich C-90B Manuale Utente

5

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 150°F to 170°F will not harm the cell.

1.  After turning off the air cleaner, remove the cell and gently 

place on 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 removed 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.

If an automatic dishwasher is not available or not of suffi cient 
size to accommodate the cell, a large container capable of 
holding the electronic cell can be used.

1.  Mix an alkaline detergent with hot water in a ratio of 4 

oz. of detergent to 1 gal. of water. Water temperature 
should be between 150°F and 170°F. Be careful to avoid 
prolonged skin contact with solution and DO NOT splash 
solution in the eyes.

2.  Soak the cell in the solution for about 15 minutes. The 

solution  should  be  agitated  in  some  way  every  2  to  3 
minutes by sloshing or stirring the solution.

3.  Remove the cell from the cleaning solution and place in 

a clean container of hot water 150°F to 170°F for rinsing 
and let set for 10 minutes.

4.  Remove the cell from the rinse water and allow to drain 

and dry before using.

5.  If there is any detergent residue remaining, rinse again, 

since it may affect the effi ciency of the air cleaner.

NOTE:  The ionizer wires may become so dirty that an 
occasional cleaning is recommended. With a damp cotton 
ball, wipe the ionizer wires by placing the wire between fi nger 
and thumb.

Occasionally, after the cleaning process, the cell may seem 
stained. If the stain is black or very dark, it is probably 
detergent residue and should be rinsed off at once. If yellowing 
appears, it is probably stain from tobacco or other smoke. 

The yellowing does not affect air cleaning effi ciency. Use an 
ammonia based or butyl based detergent to clean tobacco 
tar and other smoke residue from the collector plates.