Viessmann Vitodens 100-W Installation Instructions Manual page 14

GB
Matching the control unit to the boiler
X21
X20
A
4 3 2 1
Serial no.
(type plate)
7172799
7202597
7202598
7202599
Serial no.
(type plate)
7441736
7441737
7441739
7441745
7441748
7441749
Serial no.
(type plate)
7499418
7499419
7499420
7499421
7499422
7499423
7499424
7499425
7499426
7499427
14
X7
Parameter set
no.
Parameter set
no.
Parameter set
no.
(cont.)
10. Remove lead A from "X 21" (is no
longer needed).
11. If a lead was previously connected
to "X 21" at the control unit (remote
control unit or outside temperature
sensor):
Reconnect this lead to "X 21".
Serial no.
(type plate)
8 7499428
7 7499429
8 7499430
14 7499431
7499432
7499433
7499434
4
7499435
5
7499436
6
7499438
2
7499440
1
7499441
3
7499442
7499443
7499446
7499447
7
8
Serial no.
14
(type plate)
12
7501297
13
7501298
7
7501823
8
7501824
9
7514869
10
7514870
11
Parameter set
no.
12
13
14
13
14
12
13
15
16
14
12
13
Parameter set
no.
14
7
8
7
8
1
2
2
2
7