Hydraulically Connecting The Primary/Secondary Circuits - Viessmann VITOCAL 300-G PRO Installation And Service Instructions Manual

Hydraulically connecting the primary/secondary circuits

Connection overview Type
BW 301.A090 to BW 302.A250
G F E
A
C
D
163
406
A Primary circuit flow (heat pump
water inlet):
Victaulic 3"
B Secondary circuit flow:
Victaulic 2½"
C Primary circuit return (heat pump
water outlet:
Victaulic 3")
D Secondary circuit return:
Victaulic 2½"
E Power supply 400 V/50 Hz
F Power supply 230 V/50 Hz
G Low voltage < 42 V
B
343
Installation sequence
Connection overview Type
WW 301.A125 to WW 302.A300
G F
A
C
D
280
288
A Primary circuit flow (heat pump
water inlet):
Victaulic 3")
B Secondary circuit flow:
Victaulic 2½"
C Primary circuit return (heat pump
water outlet:
Victaulic 3")
D Secondary circuit return:
Victaulic 2½"
E Power supply 400 V/50 Hz
F Power supply 230 V/50 Hz
G Low voltage < 42 V
E
B
344
45