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
A
B
C
3. Replace the sensor in the case of
severe deviation.
1. Drain the boiler from the DHW side.
2. Pivot the control unit downwards.
3. Undo screws A.
4. Remove cap B.
5. Remove faulty flow limiter C.
6. Select a new flow limiter C from the
following table.
Flow rate
l/min
12
7. Insert new flow limiter C.
8. Fit new cap B provided.
Troubleshooting
Colour
Red
45