Reset the hours meter
If the fine filter was changed due to soiling before 250 operating hours, the hours meter
must be reset to zero. Proceed as follows:
1. When switching on the unit, press and hold the on/off switch.
The filter change indicator will come on after about five seconds before going off again
after another three seconds.
2. Release the on/off switch.
Accessories
To clean the exhalation system, the mask and the headgear, please see the section "Clean-
ing" in the relevant operating instructions.
To clean the humidifier CLICK 2, please see the section "5.3 Cleaning CLICK 2" on
page 27 of these operating instructions.
5.3 Cleaning CLICK 2
Do not touch the heater rod. The metal takes a long time
to cool down.
1. Open the humidifier by twisting the upper and lower
parts against each other in an counter-clockwise
direction.
2. No water must penetrate into the pressure line during
cleaning or this could lead to incorrect pressure read-
ings. Therefore the pressure line must remain sealed.
To seal the pressure line at the outlet-connections push
the silicone tube of the closure (supplied as standard
CLICK 2) over the end of the pressure line.
Hygienic preparation
27