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18
2 Preparing and using your IMPRESSA for the first time
T Place a receptacle (at least 500 ml) under the frother.
c T Press the maintenance button.
FILTER RINSING. Water will flow out of the frother.
E You can interrupt rinsing of the filter at any time by pressing
any button.
E The water may be slightly discoloured. This is not harmful to
health and does not affect the taste.
Filter rinsing stops automatically after approx. 500 ml.
HEATING appears on the display, then READY is dis-
played. The filter is now activated.
E However, if you are using the CLARIS filter cartridge and have
activated it, you will not be able to adjust the water hard-
ness.
The harder the water is, the more frequently the IMPRESSA needs to
be descaled. It is therefore important to adjust the water hardness.
The water hardness can be adjusted on a continuous scale between
1° dH and 30° dH. This can also be deactivated, which means that
the IMPRESSA will not let you know when it has to be descaled.
You can find out what the water hardness is by using the Aquadur®
test strip supplied as standard.
T Hold the test strip briefly (for one second) under flowing
water. Shake off the water.
T Wait for about one minute.
T You will then be able to read the degree of water hardness
from the discolouration of the Aquadur® test strip and the
description on the packaging.
You can now adjust the water hardness.
Example: To change the water hardness from
16°dH to
25°dH, proceed as follows:
Precondition:
READY is displayed.
T Open the cover of the Rotary Switch.
k T Keep the Rotary Switch pressed until
RINSE appears.
Determining water
hardness and adjusting