Water Hardness - Miele DGC 7845 X Operating And Installation Instructions

Settings

Water hardness

To ensure that the steam oven works
correctly and to ensure that descaling is
carried out at the correct interval, it
must be set to the local water hardness
level. The harder the water is, the more
frequently the steam oven needs to be
descaled.
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, use non-carbonated
water. Select settings according to the
calcium content. The calcium content is
given on the label of the bottle in mg/l
2+
Ca or ppm (mg Ca
The degree of hardness can be set
between 0.2 mmol/l (1° dH)
12.5 mmol/l (70° dH)
is set to 2.7 mmol/l (15 °dH) at the
factory.
 Set the water hardness level for your
area.
 Confirm with OK.
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
48
2+
/l).
and
. The hardness level
Calcium content Setting
2+
mg/l Ca or
2+
ppm (mg Ca /l)
7
14
21
29
36
43
50
57
64
Water hardness
°dH mmol/l
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
32
2
33
3
34
4
35
5
36
6
37-45 6.6-8.0
7
46-60 8.2-10.7
8
61-70 10.9-12.5
9
Calcium content
2+
mg/l Ca or
2+
ppm (mg Ca
1.9 71
2.0 79
2.2 86
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
258–321
322–429
430-500
Setting
/l)
10
11
12
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