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Water hardness
The combination steam oven must be
adjusted to the local water hardness
level to ensure that it works correctly
and to ensure that descaling is carried
out at the correct interval. The harder
the water is, the more frequently the
combination steam oven needs to be
descaled.
Contact your local water supplier to find
out the water hardness in your area.
If you use bottled water, such as min-
eral water, make sure it is not carbon-
ated. Adjust this setting depending on
the calcium content. The calcium con-
tent is specified on the label of the
2+
bottle in mg/l Ca
You can set the hardness level between
1 °dH
and
70 °dH
. The hardness level is
set to
by default.
15 °dH
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
1.9
11
2.0
12
2.2
48
2+
or ppm (mg Ca
Calcium con-
Setting
tent
2+
mg/l Ca
or
2+
ppm (mg Ca
/l)
7
14
21
29
36
43
50
57
64
71
79
86
Water hardness
°dH
13
14
15
16
17
18
19
20
21
22
/l).
23
24
25
26
27
28
29
1
30
2
31
3
32
4
33
5
34
6
35
7
36
8
37–45
9
46–60
8.2–10.7
10
61–70
10.9–12.5
11
12
Calcium con-
tent
mmol/l
2+
mg/l Ca
ppm (mg Ca
2.3
93
2.5
100
2.7
107
2.9
114
3.1
121
3.2
129
3.4
136
3.6
143
3.8
150
4.0
157
4.1
164
4.3
171
4.5
179
4.7
186
4.9
193
5.0
200
5.2
207
5.4
214
5.6
221
5.8
229
5.9
236
6.1
243
6.3
250
6.5
257
6.6–8.0
258–321
322–429
430–500
Setting
or
2+
/l)
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37–45
46–60
61–70
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