System Layout - Viessmann VITODENS 200-W Installation Instructions Manual

Boiler Connections
Installation Examples

System layout

Multiple (up to four) Vitodens 200-W, models WB2B 45 to 105 with...
– multiple heating circuits with mixing valves
– low-loss header
Boiler 1
PRV PRV
DHW Tank
Fig. 31
IMPORTANT
This installation example depicts a
possible piping layout for multiple
Vitodens 200-W, WB2B boilers equipped
with Viessmann System Technology.
Please note that this example is based on
a simplified conceptual drawing only!
Piping and necessary componentry must
be field verified.
A low water cut-off (LWCO) must be
installed where required by local codes.
Proper installation and functionality in the
field is the responsibility of the heating
contractor.
28
(continued)
Vitocontrol-S
Boiler 2 Boiler 3
PRV
PRV
WARNING
If a DHW storage tank other than a
Viessmann Vitocell 100 or 300 tank is
used, the installer must verify proper
operation of the Viessmann DHW tank
temperature sensor with the original
manufacturer of the tank. Viessmann
strongly recommends the installation of a
temperature tempering valve in the DHW
supply line.
Boiler 4
PRV
Common
Supply
Temperature
Sensor
M
Low-Loss
Header
M