Vitodens 200-W B2HA 80 to 100, 285 to 352 Installation
37
5685 827 - 14
Boiler Connections
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
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.
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 53
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