Viessmann Vitodens 050-W Installation And Service Instructions Manual page 49

Repairs
(cont.)
Replacing flow limiter
1. Drain the boiler from the DHW side.
B
2. Pull off spring clip A.
C
3. Remove flow sensor B.
4. Remove faulty flow limiter C.
5. Select a new flow limiter C from the
A
6. Insert new flow limiter C.
7. Mount flow sensor B with new gas-
following table.
Serial no. Flow
(type plate) rate
l/min
7537906
7537947
kets.
Troubleshooting
Colour
10 Light
blue
14 Light
pink
49