Miele CVA 7845 Operating And Installation Instructions page 57

If you are using bottled drinking water,
e.g. mineral water, select settings
according to the calcium content. The
calcium content is specified on the label
of the bottle in mg/l Ca
2+
(mg Ca /l).
Do not use carbonated water.
The hardness level is set to 21 °dH by
default.
Water hardness
°dH mmol/l
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
2+
or ppm
Calcium Setting
content
2+
mg/l Ca or
2+
ppm (mg Ca /l)
7
14
21
29
36
43
50
57
64
71
79
86
93
100
107
114
121
129
136
143
Water hardness
°dH
21
22
23
24
25
26
s
27
28
29
1
30
2
31
3
32
4
33
5
34
6
35
7
36
8
37–45
9
46–60
10
61–70
11
12
Tip: If your water hardness is >21 °dH
(3.8 mmol/l), we recommend using
13
bottled drinking water instead
14
(< 150 mg/l Ca
15
coffee machine will need to be
16 descaled less often and there will be
less impact on the environment
17
because less descaler will be used.
18
19
20
Calcium
content
mmol/l
2+
mg/l Ca
ppm (mg Ca
3.8 150
3.9 157
4.1 164
4.3 171
4.5 179
4.6 186
4.8 193
5.0 200
5.2 207
5.4 214
5.5 221
5.7 229
5.9 236
6.1 243
6.3 250
6.4 257
6.6–8.0 258–321
8.2–10.7 322–429
10.9– 430–500
12.5
2+
). This will mean your
Settings
Setting
s
or
2+
/l)
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37–45
46–60
61–70
57