System Layout 6 - Viessmann VITODENS 200-W B2HE 85 Installation Instructions Manual

Installation Examples

System Layout 6

Vitodens 200-W, B2HE with...
- DHW storage tank
- one heating circuit without a mixing valve
- two heating circuits with a mixing valve
- low-loss header
Legend
Vitodens 200-W B2HE boiler with integrated
A
outdoor reset control and variable speed boiler pump
B Outdoor temperature sensor !
Vitotrol remote (optional)
C
D Under floor heating circuit
E Heating circuit pump
Mixing valve temperature sensor ?
F
G Accessory kit for heating circuit with mixing valve
Heating circuit pumps (mixing circuit)
H
DHW storage tank
I
J DHW tank temperature sensor %
Expansion tank
K
L Temperature and pressure relief valve
M Low-loss header
Viessmann temperature sensor for low-loss header TSI
N
O Pressure relief valve
DHW recirculation pump
P
Radiator heating circuit
Q
* Based on system configuration set using the
commissioning assistant.
44
*
P1
*
P2
Vitodens 200-W B2HE 85, 120, 150, 199 Installation
Installation of different heating circuits...
ratiator heating circuit (high temperature circuit)
■
two heating circuits 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 B2HE boiler (see pages 37 and 38 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
a mixing valve.