Viessmann Vitocal 300-G Series Installation And Service Instructions Manual page 19

Electrical connection
Fig. 10
1. Route LV leads through the "<42 V" opening to the
terminal area of the heat pump control unit. Pro-
vide strain relief using the cable ties supplied.
2. Route 230 V cables through the "230 V" opening to
the terminal area of the heat pump control unit.
Note
Route LV leads and 230 V cables as far apart as
possible.
(cont.)
<42 V
230 V
400 V
3. Route the compressor power cable through the
"400 V" opening to the terminal area. For power
supply, see from page 33.
Installation sequence
19