Viessmann B2TF - Connections on the Heating Water and DHW Sides; DHW Circulation Connection (Potable Water); Filling the Trap with Water

17
A
B
D
A B D E
E
D
B
A
C
C
C
E
Fig. 7 Shown with connection sets for surface
mounting (accessories)
A
Heating flow R ¾
B
DHW R ½
C
DHW circulation R ½ (separate accessories)
D
Cold water R ½
E
Heating return R ¾
DHW circulation connection (potable water)
DHW circulation connection with DHW circulation
pump connection set (accessories)
Separate installation instructions
Filling the trap with water
Note
If there is a risk of frost, only fill the trap just before
commissioning.
Fig. 8
Pour at least 0.3 l of water into the flue gas connection.
Danger
During commissioning, flue gas may escape
from the condensate drain.
Always fill the trap with water before commis-
sioning.
Installation sequence
Connections on the heating water and DHW sides
6151778
Installation