System Layout 2 - Viessmann VITODENS 200-W Technical Data Manual

Installation Examples

System Layout 2

Vitodens 200-W, B2HB with one heating circuit and low-loss header
Legend
A
Vitodens 200-W B2HB 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
L
Low-loss header
M
Pressure relief valve
N
Viessmann temperature sensor for
low-loss header ?
O
Heating circuit pump
* Function based on coding of address 33
30
*
28/20
*
28/20
Vitodens 200-W, B2HB 19 to 35 Technical Data
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 B2HB boiler (see page 8 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 8,
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 B2HB boiler (as illustrated).