Viessmann Vitodens 100 Series Installation And Service Instructions Manual page 29

6.5 to 35.0 kw wall mounted gas condensing boiler. natural gas version
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Electrical connections
Connection Vitotrol 100, type UTDB-RF
X7
1
2
3
4
B
1
2
3
4
A
A Vitotrol 100, type UTDB-RF
B Terminals on the control unit
(cont.)
Note
Observe parameter "P08", see
page 59.
Recommended connecting cable
■ 2-core cable for low voltage
220 V∼
Installation sequence
29

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