Viessmann B2TF Installation And Service Instructions Manual page 37

Venting the heating system
7. Activate the venting function with
The display shows the system pressure.
The venting function ends automatically after
20 min or when you tap
Filling the DHW cylinder on the DHW side
Fig. 28
Checking the connections on the heating water and DHW sides
Danger
Risk of electric shock from escaping heating
water or DHW.
When commissioning and after carrying out
maintenance work, check all water side connec-
tions for leaks.
Naming the heating circuits
In the delivered condition, the heating circuits are des-
ignated "Heating circuit 1", "Heating circuit 2", "Heating
circuit 3" and "Heating circuit 4" (if installed).
If the system user prefers, the heating circuits can be
renamed to suit the specific system.
Entering contact details of heating contractor
The system operator can call up contact details when
required and notify the heating contractor.
1.
(cont.)
.
.
A C
B
Commissioning, inspection, maintenance
1. The lever on the valve must be in position
2. Open the on-site DHW supply and a DHW draw-off
point.
3. Once air stops coming out of the DHW draw-off
point, the DHW cylinder is completely filled.
To enter names for heating circuits:
Operating instructions
2. Select "Information".
3. Select "Service contact details".
.
A
37