Technical data

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Vitodens 200-W B2HA 100 to 150 Technical Data
Installation Examples
System Layout 2
Vitodens 200-W, B2HA with one heating circuit and low-loss header
Installation of ...
■ radiator heating circuit (high-temp. circuit)
■ DHW production
... with the following flow conditions:
The flow rate of the heating circuit is greater than the
maximum possible water flow rate of the Vitodens
200-W B2HA boiler (see page 9 for maximum water flow
rate of boiler).
The use of a low-loss header is strongly recommended
if the maximum water flow rate in the application
concerned exceeds the values shown on page 10,
or if the system flow rates are unknown.
The low-loss header is available as accessory part.
Please note location of expansion tank.
DHW circulating pump F 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 Heating circuit
E Boiler pump 20
F DHW circulating pump sA
G DHW storage tank
H DHW tank temperature sensor %
I Expansion tank
J Temperature and pressure relief valve
K DHW recirculation pump 28/20 *
L Low-loss header
M Pressure relief valve
N Viessmann temperature sensor for
low-loss header ?
O Heating circuit pump 28/20 *
* Function based on coding of address 33