Jura IMPRESSA C5 - Assessing and Setting Water Hardness

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2 Preparing and using your IMPRESSA for the ﬁ rst time

The harder the water is, the more frequently the IMPRESSA

needs to be descaled. It is therefore important to set the water

hardness.

However, if you are using the CLARIS plus ﬁ lter cartridge

and have activated the ﬁ lter, you will not be able to adjust

the water hardness.

The water hardness is set to level 3 in the factory.

The symbols in the symbol display show the conﬁ gured degree

of water hardness. The number of symbols corresponds to the

relevant level.

You can ﬁ nd out what the water hardness is, using the Aquadur

test strips enclosed in the Welcome Pack.

Hold the test strip brieﬂ y (for one second) under ﬂ owing

mains water. Shake off the water.

Wait for about 1 minute.

You will then be able to read the degree of water hard-

ness from the discoloration of the Aquadur

test strip

and the description on the packaging.

You can now conﬁ gure the water hardness.

Assessing and setting

water hardness

Assessing and setting

water hardness

Level Water hardness Shown in display

0 The water hardness is switched off, the automatic

calciﬁ cation indicator is switched off

No symbol is illuminated

1 German degree of water hardness 1 – 7° dH

French degree of water hardness 1.79 – 12.53° f

1 symbol is illuminated

2 German degree of water hardness 8 – 15° dH

French degree of water hardness 14.32 – 26.85° f

2 symbols are illuminated

A S

3 German degree of water hardness 16 – 23° dH

French degree of water hardness 28.64 – 41.14° f

3 symbols are illuminated

A S D

4 German degree of water hardness 24 – 30° dH

French degree of water hardness 42.96 – 53.7° f

4 symbols are illuminated

A S D F