Viessmann Vitodens 100 Series Installation And Service Instructions Manual page 78

Troubleshooting
Repairs
(cont.)
Replace flow limiter and clean filter (gas condensing combi
boiler)
Serial no. Flow rate
(type plate) l/min
7538975
7538977
78
A
B
C
Colour
10 Blue
14 Pink
1. Drain the boiler on the DHW side.
2. Undo the fitting on the cold water
inlet A.
3. Remove faulty flow limiter B.
4. Select new flow limiter B accord-
ing to the boiler serial no. (see type
plate) and the following table.
5. Insert new flow limiter B.
6. Remove filter C, clean and re-fit.
7. Secure the fitting on the cold water
inlet A.