Viessmann Vitodens 200-W B2HA 112 Installation Instructions Manual page 37

Vitodens 200-W B2HA 112, 150, 399, 530 Installation
System Layout 2
Vitodens 200-W, B2HA with one heating circuit and low-loss header
Legend
Vitodens 200-W B2HA boiler with
A
Vitotronic 200, HO1B outdoor reset
control
Outdoor temperature sensor !
B
Vitotrol remote (optional)
C
D Heating circuit
Boiler pump
E
20
F DHW circulating pump sA
G DHW storage tank
DHW tank temperature sensor %
H
I Expansion tank
Temperature and pressure relief valve
J
DHW recirculation pump
K
L Low-loss header
Pressure relief valve
M
N Viessmann temperature sensor for
low-loss header ?
Heating circuit pump
O
* Function based on coding of address 53
*
28/20
*
28/20
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 31 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 32,
or if the system flow rates are unknown.
The low-loss header is available as accessory part.
IMPORTANT
Please note location of expansion tank.
DHW circulating pump F must pump into the Vitodens
200-W B2HA boiler (as illustrated).
Boiler Connections
35