Viessmann Vitocal 300-G Installation And Service Instructions Manual page 77

Positioning of all terminals
Conversion from type BW into type WW
This requires the connection of additional appliances (see the following table).
Equipment
Flow switch 1X3.3
1X3.4
Frost protection 1X3.8
monitor 1X3.9
Frost protection 1X3.8
monitor and brine 1X3.9
pressure limiter (see page 26
and 39)
Primary pump and See the following
well pump (acces- illustration
sory) in the primary
circuit (max.
200 W)
(cont.)
Connection Comments
ID
Remove jumper and connect flow
limiter
Remove jumper and connect frost
protection monitor
When using type BW in conjunction
with the AC-Box (accessory), the
brine pressure limiter is connected in
series with the frost protection moni-
tor of the AC-Box (remove jumper)
Type BW Ó WW
Connect both pumps via terminal
2X8.5
Type BWC Ó WWC
Control all primary pumps already
installed and connected to terminal
2X8.5 together with the on-site well
pump via terminal 2X8.5
Installation sequence
Setting parameters (group)
No parameters need to be
set
No parameters need to be
set
No parameters need to be
set
No parameters need to be
set
77