Viessmann Vitocal 300-G Installation And Service Instructions Manual page 27

Electrical connection
Making the electrical connection of heat pump stage 1 (type BW 301.B) and stage 2 (type
BWS 301.B)
B
Fig. 21
Wiring chamber, heat pump stage 2 (type
A
BWS 301.B)
LV < 42 V connecting leads:
B
■ With plugs B and
aJ
of heat pump stage 2 (type BWS 301.B)
■ With plugs aJ B and
of heat pump stage 1 (type BW 301.B)
(cont.)
1.
< 42 V
230 V~
4.
3.
for the wiring chamber
aVG
aVG for the wiring chamber
2.
< 42 V
230 V~
5.
230 V~ connecting cables:
C
■ With plugs without ID for the wiring chamber,
heat pump stage 2 (type BWS 301.B)
■ With plugs "X300" and
ber, heat pump stage 1 (type BW 301.B)
D Wiring chamber, heat pump stage 1 (type
BW 301.B)
Installation sequence
for the wiring cham-
aBH
27