Viessmann Vitodens 200 WB2 11-44 Installation Instructions Manual page 25

Installation Examples
Vitodens 200 (model WB2 11-44 and up) with DHW storage tank and
one direct-connected heating circuit
TPV
Y
AV Air vent
PRV Pressure relief valve
TPV Temperature and pressure relief valve
Vitodens 200 gas-fired condensing
boiler with programming unit for
weather-responsive operation
Outdoor temperature sensor of control
unit for weather-responsive
operation
Remote control
Heating circuit
Heating circuit pump (field supplied)
DHW circulating pump (field supplied)
DHW storage tank
DHW tank temperature sensor
Expansion tank
Important!
Please note location of expansion tank
and flow check valve
Flow check valve
(continued)
AV
PRV
Y
Installation example and corresponding plug-in connection
example do not follow same alphabetical designation of
components.
Installation of ...
H radiator heating circuit (high temperature
circuit)
H DHW production
...with the following flow conditions
1. The flow rate of the heating circuit is less
than the maximum possible water flow rate
of the Vitodens 200 boiler (see following
table).
Model No.
Vitodens 200,
WB2 11-44
WB2 15-60
The use of a low-loss header is strongly
recommended if the maximum water flow
.
rate in the application concerned exceeds
the values shown in the table above, or if
the system flow rates are unknown.
The low-loss header is available as
accessory part.
See following pages for installation
examples with a low-loss header.
IMPORTANT
DHW circulating pump
into the Vitodens 200 boiler (as
Max. flow rate illustrated).
(GPM/ltr/h)
15.4/3500
15.4/3500
Boiler Connections
must pump
25