Water Hardness - Miele CVA 7440 Operating And Installation Instructions

Water hardness

Programme the coffee machine to the
water hardness level of your area so
that it functions correctly and does not
get damaged.
Contact your local water supplier to find
out your local water hardness range if
necessary.
If you are using bottled drinking water,
e.g. mineral water, select settings
according to the calcium content. The
calcium content is given on the label of
the bottle in mg/l Ca
2+
Ca /l).
Do not use carbonated water.
The water hardness is preset at the
factory to 21° dH (3.8 mmol/l).
2+
or ppm (mg
Water hardness Calcium
content
°dH mmol/l
mg/l Ca
ppm (mg Ca
1 0.2
2 0.4
3 0.5
4 0.7
5 0.9
6 1.1
7 1.3
8 1.4
9 1.6
10 1.8
11 2.0
12 2.1
13 2.3
14 2.5
15 2.7
16 2.9
17 3.0
18 3.2
19 3.4
20 3.6
21 3.8
22 3.9
23 4.1
24 4.3
25 4.5
26 4.6
27 4.8
28 5.0
29 5.2
Settings
Setting
2+
or
2+
/l)
7 1
14 2
21 3
29 4
36 5
43 6
50 7
57 8
64 9
71 10
79 11
86 12
93 13
100 14
107 15
114 16
121 17
129 18
136 19
143 20
150 21
157 22
164 23
171 24
179 25
186 26
193 27
200 28
207 29
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