25
User Manual WMF 1100 S
Start-up | Start-up program
Place the water tank water filter (optional)
This item is a step that is performed during the
start-up program.
For drinking water with carbonate hardness from
5 °dKH or higher, a WMF water filter must be fitted;
otherwise, the coffee machine can be damaged due to
build-up of scale.
Determine the water hardness
Request drinking water hardness reading from
water supplier, or determine using WMF carbonate
hardness test (complete with instructions) in the
accessories
The carbonate hardness test is supplied with the
accessories.
Capacity
The included water filter for the water tank (BWT 200 l)
can treat up to 200 litres of water at 10 °dkH.
The actual service life depends on the hardness of
the drinking water supply and can be found in the
following table.
Water
hardness
Capacity
in litres
Water
hardness
Capacity
in litres
< 5
no filter needed
15
135
above 5
400
16
125
6
335
17
120
7
285
18
110
8
250
19
105
9
220
20
100
10
200
21
95
11
180
22
90
12
165
23
85
13
155
24
80
14
145
> 25
70
Water filter capacity
The unit used is the “Deutsche
Karbonathärte” (°dKH)
Filter change
w
Care
Note
If the water hardness is between
0 and 5 °dKH, no water filter is
needed.
w
Start-up program
