Vitodens 200-W, B2HA 19 to 80 Technical Data
5683 717 - 03
Installation Examples
System Layout 5
44
Vitodens 200-W, B2HA with...
- DHW storage tank
- one heating circuit with mixing valve
- one heating circuit without mixing valve and low-loss header
Installation of different heating circuits...
■
radiator heating circuit (high-temp. circuit)
■
under floor heating circuit with 3-way mixing valve
(low-temp.
circuit)
■
DHW
production
... with the following flow conditions:
The total flow rate of the two heating circuits is greater
than the maximum possible water flow rate of the
Vitodens 200-W B2HA boiler (see page 10 for maximum
water flow rate of boiler).
The use of a low-loss header is strongly recommended.
The low-loss header is available as accessory part.
The 3-way mixing valve, built-in to achieve the low-
temperature level of the under floor heating circuit, is
controlled by an accessory kit for a heating circuit with
mixing valve.
DHW circulating pump
O
must pump into the Vitodens
200-W B2HA boiler (as illustrated).
IMPORTANT
Legend
A
Vitodens 200-W B2HA boiler with
Vitotronic 200, HO1B outdoor reset control
B
Outdoor temperature sensor
!
C
Vitotrol remote (optional)
D
Under floor heating circuit
E
Radiator heating circuit
F
Boiler circuit pump
20
G
Mixing valve temperature sensor
?
H
Kit for heating circuit with mixing valve
I
Domestic hot water storage tank
J
DHW tank temperature sensor
%
K
Expansion
tank
L
Temperature and pressure relief valve
M
Pressure relief valve
N
DHW recirculation pump
28/20
*
O
DHW circulating pump
sA
P
Heating circuit pump
Q
Low-loss
header
R
Viessmann temperature sensor for low-loss header
%
S
Heating circuit pump 28/
20
*
* Function based on coding of address 33
