System Layout 3 - Viessmann VITODENS 200-W B2HE 85 Installation Instructions Manual

Vitodens 200-W B2HE 85, 120, 150, 199 Installation

System Layout 3

Vitodens 200-W, B2HE with...
- DHW storage tank
- one heating circuit with mixing valve and system separation
Legend
Vitodens 200-W B2HE boiler with integrated
A
outdoor reset control and variable speed boiler pump
Outdoor temperature !
B
Vitotrol remote (optional)
C
D Underfloor heating circuit
Mixing valve temperature sensor ?
E
F Pressure relief valve
G Plate heat exchanger for system
separation
H Accessory kit for heating circuit with
mixing valve
DHW storage tank
I
J DHW tank temperature sensor %
Expansion tank
K
L DHW recirculation pump
M Temperature and pressure relief valve
Heating circuit pump (mixing circuit)
N
* Based on system configuration set using the
commissioning assistant.
*
P2
Installation of ...
underfloor heating circuit with 3-way mixing valve
■
and system separation (low-temp. circuit)
DHW production
■
... with the following flow conditions:
The flow rate of the heating circuit is less 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 the
Vitodens 200-W B2HE boilers. The use of a low-loss header
is recommended if the system water flow rate is unknown.
The low-loss header is available as accessory part.
See following pages for installation examples with a
low-loss header.
IMPORTANT
System separation is required of underfloor heating
systems employing non-oxygen diffusion barrier tubing.
All components on the secondary side of the heat
exchanger must be made of corrosion-resistant materials.
Installation Examples
41