Viessmann VITODENS 200-W Type B2HA Technical Manual page 10

Vitodens 200-W
The low loss header separates the heat generator circuit (boiler cir-
cuit) from the subsequent heating circuits.
1
100%
130%
B
130%
A V primary
B V secondary
Adjust the functioning of the primary side circulation pump during commissioning
Hydraulic connection/connection requirements
Single boiler system
Connection of heating circuits with connection set with inte-
gral low loss header
Circulation pump VI PARA 25/1-11
Pressure drop on the heating water side
For sizing a cylinder loading pump (on site).
600 60
500 50
400 40
300 30
20
200
100 10
0 0
0
Flow rate in l/h
VIESMANN
10
(cont.)
100%
A
500 1000 1500 2000
High efficiency circulation pump in the heating circuit connec-
tion set
The highly efficient circulation pump uses significantly less power
compared to conventional pumps.
Matching the pump rate of the circulation pump to the individual sys-
tem conditions reduces the power consumption of the heating sys-
tem.
Circulation pump VI PARA 25/1-11
Rated voltage
Power consumption
– max.
– min.
Control unit setting
Coding address/group
30:0/boiler/2
DHW cylinder connection set for connecting the DHW cylinder
upstream of the low loss header, see accessories.
2500 3000 3500
V~
W
W
Circulation pump setting
Ext. In
2 2
6 6
12 12
Recommended for Δt = 15 K
= 3 ≙ 2.87 m
– 49 kW:
Recommended for Δt = 17 K
= 4 ≙ 3.37 m
– 60 kW:
VITODENS 200-W
230
140
8
3
/h
3
/h