Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 81

Electrical connections
Route electrical cables from heat pump stage 2 (type BWS) to the
heat pump control unit
aVG
aJ B
A Heat pump stage 2 (type BWS) ter-
minal area for cables connecting to
the heat pump (type BW)
B 230 V~ connecting cables
(cont.)
A B C
< 42 V
230 V
1.
Installation sequence
< 42 V
C < 42 V low voltage leads with plugs
aJ and aVG
D Primary pump power cable, if instal-
led
2.
BC
230 V
81