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3. Press with your thumb on the underside of the
filter cover
and lift the cover off.
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4. Pull out the coarse dust filter
finger.
5. You can wash a soiled coarse dust filter in
clean water and reuse it after drying
thoroughly.
6. Insert the clean coarse dust filter
7. Insert the filter cover
housing with its upper edge first.
8. Using a finger to press in the catch on the
underside of the cover, fit the cover so that it
clicks into place.
9. If appropriate, fit the humidifier. Observe the
section "3.4 Humidifier" in the operating
instructions.
3.2.2 Fine filter
1. Remove the coarse dust filter
under "3.2.1 Coarse dust filter".
2. Remove the fine filter
The fine filter must be changed if it has turned dark
grey, and in any case after 250 operating hours.
In the latter case the filter change symbol
appears.
3. Insert the
filter and filter cover
new
reverse order.
4. To clear the filter change symbol, hold down
the on/off button
24
device until the symbol disappears from the
display.
If the fine filter is changed because of soiling
before 250 operating hours are reached
counter must be reset to zero
5. To do so, hold down the On/Off button
when switching on the device. After about 3
seconds the filter change symbol lights up and
after another 3 seconds it disappears. Now
you can release the button.
3.3 Cleaning the device
The parts exposed to the air flow must be cleaned
and disinfected every 10,000 hours or every 4
years. This must be done as described in Chapter
"4.3 Cleaning and disinfecting on change of
patient" on page 13.
with your
45
.
45
in the opening in the
29
as described
45
.
46
in
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when switching on the
, the
hour
:
24
29
46
After every service a test must be performed in
accordance with Chapter "5. Test the device" on
page 15.
45
45
11
Servicing
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