Settings
46
Water hardness
Calcium
content
mg/l Ca
2+
or
ppm (mg Ca
2+
/l)
Setting
°dH
mmol/l
1
0.2
7
1
2
0.4
14
2
3
0.5
21
3
4
0.7
29
4
5
0.9
36
5
6
1.1
43
6
7
1.3
50
7
8
1.4
57
8
9
1.6
64
9
10
1.8
71
10
11
2.0
79
11
12
2.1
86
12
13
2.3
93
13
14
2.5
100
14
15
2.7
107
15
16
2.9
114
16
17
3.0
121
17
18
3.2
129
18
19
3.4
136
19
20
3.6
143
20
21
3.8
150
21
22
3.9
157
22
23
4.1
164
23
24
4.3
171
24
25
4.5
179
25
26
4.6
186
26
27
4.8
193
27
28
5.0
200
28
29
5.2
207
29
Water hardness
Calcium
content
mg/l Ca
2+
or
ppm (mg Ca
2+
/l)
Setting
°dH
mmol/l
30
5.4
214
30
31
5.5
221
31
32
5.7
229
32
33
5.9
236
33
34
6.1
243
34
35
6.3
250
35
36
6.4
257
36
37-45
6.6-8.0
258–321
37-45
46-60
8.2-10.7
322–429
46-60
61-70
10.9-12.
5
430-500
61-70
Useful tip:
If your water hardness is
>21 °dH (3.8 mmol/l), we recommend
instead to use bottled drinking water
(< 150 mg/l Ca
2+
). This will mean your
coffee machine will need to be
descaled less often and there will be
less impact on the environment
because less descaling agent will be
used.
System lock
You can lock the coffee machine to
prevent it being used without your
knowledge, for example by children.
When the system lock is activated, the
settings for the
Switch off after
timer are
deactivated. The coffee system will
not
switch on at the time set and/or
does not react on approach.
Overriding the system lock
Touch
OK
for 6 seconds.
Summary of Contents for CVA 744C
Page 52: ...Cleaning and care 52 sharp metal scrapers steel wool or stainless steel wire scourers ...
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