Air-O-Swiss AOS 7135 Service Manual Page 13

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en
Replacement of the demineralization
cartridge
Always unplug the unit before removing the
water tank. Do not touch the water in the base
during operation!
The water tank is equipped with a demineralization cart-
ridge. This cartridge has to be replaced every 2 – 3 months.
If the water is very hard, it may be necessary to replace the
cartridge earlier. White dust around the device is a sure sign
that the cartridge needs replacing. Please note white dust
is not harmful. If white residue still forms around the device
after a new cartridge has been inserted, please make sure
that the water you are using is untreated. If the water flows
through a decalcification systemsuch as an ion exchanger
- (sodium is added to remove calcium) in the building before
it is used in the humidifier, salt can precipitate as white dust
around the device. The demineralization cartridge and or the
granules must be exchanged at the latest after 6 months or
the unit does not reach its full performance anymore.
Option A: replace the resin
Remove the water tank from the base and unscrew the
water tank cap (26). Caution: the mist outlet is loose!
The demineralization cartridge is attached to the inside
of the tank cap. Unscrew the cartridge from the cap by
turning it counter-clockwise (27). Important: do NOT
dispose of the water tank cap!
Open the cartridge (28).
Throw the content into the waste (Attention! Disposed
resin can make the floor slippery!) (29).
For refilling the DMC, wad a piece of paper towel and
place it in the middle of the DMC. For placing granules
in the cartridge, a suggestion is to use a spoon so that
granules do not get in the middle of the cartridge (31).
Placing granules in the middle allows them to escape
everywhere or to clog the unit. The unit will no longer
operate properly and the granules need to be cleaned
out thoroughly.
Close the cartridge (33).
26
27 28
29
30
31 32
33 34
35
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