Viessmann Vitodens 100-W Installation And Service Instructions Manual page 45

Repairs
(cont.)
20
10
8
6
4
2
1
0.8
0.6
0.4
10 30 50 70 90 110
Temperature in °C
Replacing flow limiter (gas fired condensing combi boiler)
A
B
C
3. Replace the sensor in case of severe
deviation.
1. Drain the boiler from the DHW side.
2. Pivot the control unit downwards.
3. Undo screws A.
4. Remove the cap B.
5. Remove faulty flow limiter C.
6. Select new flow limiter C corre-
sponding to boiler serial no. (see type
plate) and the following table.
7. Insert new flow limiter C.
8. Fit new cap B provided.
Troubleshooting
45