Viessmann Vitodens 200-W B2HA 80 Installation Instructions Manual page 37

Vitodens 200-W B2HA 80 to 100, 285 to 352 Installation
System Layout 5
Vitodens 200-W, B2HA with...
- DHW storage tank
- one heating circuit with mixing valve
- one heating circuit without mixing valve and low-loss header
Legend
A Vitodens 200-W B2HA boiler with
Vitotronic 200, HO1B outdoor reset control
Outdoor temperature sensor !
B
C Vitotrol remote (optional)
Under floor heating circuit
D
Radiator heating circuit
E
F Boiler circuit pump
20
Mixing valve temperature sensor ?
G
H Kit for heating circuit with mixing valve
I Domestic hot water storage tank
DHW tank temperature sensor %
J
K Expansion tank
Temperature and pressure relief valve
L
Pressure relief valve
M
N DHW recirculation pump
DHW circulating pump sA
O
Heating circuit pump
P
Q Low-loss header
Viessmann temperature sensor for low-loss header ?
R
S Heating circuit pump
* Function based on coding of address 53
*
28/20
*
20
28/
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 30 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.
IMPORTANT
DHW circulating pump O must pump into the Vitodens
200-W B2HA boiler (as illustrated).
Boiler Connections
37