Viessmann Vitodens 100-W WB1B Installation And Service Instructions Manual page 44

Troubleshooting
Repairs
(cont.)
Replacing flow limiter (gas fired condensing combi boiler)
Serial number
(Type plate)
7373 058
7373 059
7373 061
7373 063
7373 065
7373 066
7373 067
7373 068
7373 069
44
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.
Flow rate
l/min
Colour
10
14
10
12
14
10
14
8
10
black
brown
black
red
brown
black
brown
white
black